Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| miscellaneous notes on the toxicity of some insecticides for the head louse, pediculus capitis de geer (anoplura). | 1978 | 264208 | |
| insecticidal tests on immature head lice, pediculus capitis (anoplura)--a new technique. | 1979 | 522125 | |
| ecological separation of the human head lice and body lice (anoplura: pediculidae). | 1978 | 734730 | |
| [head louse of man (pediculus capitis)]. | 1978 | 736313 | |
| an epidemic of pediculosis capitis. | an epidemic due to pediculus humanus capitis occurred in the public schools of buffalo, new york, in the winter of 1973. a survey at one elementary school showed that 20% of whites and no blacks were infested, and a city-wide prevalence survey during the academic year september 1972 to may 1973 showed that 7.2% of all pupils were infested. an epidemiological investigation showed that sex, age, race, socioeconomic status, crowding, method of closeting garments, and family size influenced the dist ... | 1977 | 870674 |
| [pests at baltic sea coast. ii. summary of most important groups on insects besides coleoptera and diptera]. | in the special holiday situations at the baltic coast of gdr, species of very different insect groups may become annoying to man. own experiences in this field are reported (excepting coleoptera and diptera). the earwig, forficula auricularia, has many varying aspects of a health pest (also in the respect of social hygiene). this species, too, may pinch painfully with his pincers. the lice species pediculus capitis and pthirus pubis are met with sometimes. limothrips cerealium may be annoying no ... | 1976 | 984495 |
| pediculus humanus capitis. | 1975 | 1165661 | |
| evaluation of efficacy of four pediculicides against head louse (pediculus capitis) infestation. | to evaluate the efficacy and to determine the minimum effective dosage of four pediculicides against head louse infestation, as well as to select a safe, effective, practical, and cheap agent, 1,657 infested school children in 25 primary schools in szu-hu, kou-hu, and ku-keng districts of yunlin county were treated and 1,611 of them were examined. the overall cure rate was 73% and the rate for boys (84%) was higher than that for girls (71%). the cure rate of nix (permethrin 1%) cream rinse was 8 ... | 1992 | 1377757 |
| the head louse in sierra leone: an epidemiological study among school children, in the njala area. | a survey of five primary schools in the njala area, sierra leone showed that pediculus humanus capitis infestation is wide-spread. the overall prevalence was 6.8% among 1007 school children examined. infestation rates varied between schools from 1.4% to 14.6% and the prevalence of infestation increased with age, from 3.1% among class i children to 10.2% among class iv and decreased to 4.9% among class vi children. females had a higher infestation rate (8.3%) than their male counterparts (5.4%). ... | 1992 | 1476959 |
| chemotherapy of head louse (pediculus humanus capitis) infestation gamma benzene hexachloride (gamma-bhc) among school children in szu-hu district, yunlin county, central west taiwan. | in order to evaluate the effectiveness of 1% gamma-bhc emulsion against head louse infestation, 1,527 school children were examined using observation by ocular and combing methods were used and infested children were treated with three regimes of 1% gamma-bhc emulsion. an overall infestation rate of 40% was found. the infestation rate was highest in tung-kuang primary school (59%) and lowest in chien-hua primary schools (7%). the rate was highest among school children grade 2 (45%) and lowest in ... | 1991 | 1715809 |
| present status of head louse (pediculus capitis) infestation among school children in yunlin county, taiwan. | in december 1990, 35 children in one kindergarten; 7,870 children in twenty-six primary schools and 2,657 students in three junior high schools in kou-hu, ku-keng and szu-hu districts in yunlin county, taiwan, were examined by naked eye observation (neo) for head louse infestation. the overall infestation rate was 16%. the infestation rate was highest in kou-hu (25%) and lowest in ku-keng (8%). the rate was higher among primary school children (21%) than among junior high school students (2%). t ... | 1991 | 2030521 |
| pediculosis prevention and control strategies of community health and school nurses: a descriptive study. | pediculus humanus capitis (pediculosis capitis) affects several million school children in the united states every year and is more prevalent among children than all other childhood communicable diseases combined. traditional treatment of pediculosis involves the direct application of pesticides to the scalp of infested individuals. yet, a single-treatment, 100% ovicidal pediculicide has not been developed. head lice can be easily detected by an educated screener. the national pediculosis associ ... | 1991 | 2033411 |
| [intestinal parasites and ectoparasites in the v region, chile: study in the psychiatric hospital of putaendo]. | a prospective study was carried out in 229 chronic patients (of both sexes) from the psychiatric hospital of putaendo, in order to find out the frequency of intestinal parasites and/or commensals in the period 1987-1989. one hundred and ninety four (84.7%) out of the 229 studied patients were infected by parasites and/or commensals. the high prevalence of commensals entamoeba coli (55.0%) and endolimax nana (50.5%) became more evident. among the parasites, the most frequent was trichuris trichiu ... | 1990 | 2152365 |
| [infestation by pediculus humanus capitis: a current long-standing public health problem]. | 1986 | 2435298 | |
| permethrin-impregnated bednets reduce nuisance arthropods in gambian houses. | the prevalence of bedbugs (cimex hemipterus l.), chicken ticks (argas persicus oken) and headlice (pediculus capitis de geer) was surveyed in a rural area of the gambia. at the beginning of the study 37.5% of children's beds were infested with bedbugs and 3.9% with chicken ticks, whilst the prevalence rate of pediculosis in children under 10 years old was 28.8%. both bedbugs and headlice were clustered within compounds. headlice prevalence increased with hair length and they were more common on ... | 1989 | 2519687 |
| head lice, pediculus humanus capitis (anoplura: pediculidae) from hair combs excavated in israel and dated from the first century b.c. to the eighth century a.d.. | 1988 | 3060619 | |
| prevalence of nits and lice in samples of cut hair from floors of barbershops and beauty parlors in belo horizonte, minas gerais state, brazil. | a louse survey based on samples of cut hair collected from floors of barbershops and beauty parlors was conducted in belo horizonte, minas gerais state, brazil, from october 1984 to april 1985, as an alternative way to determine the prevalence of pediculosis capitis in the population. of 475 samples examined for nits, nymphs, or adults of pediculus capitis, 140 were infested (29.5%). a total of 58 lice and 3,553 nits were found in 33,632.9 g of hair collected, giving a ratio of 0.10 nit/g. almos ... | 1988 | 3271944 |
| evaluation of an intervention program for head lice infestation in school children. | in order to investigate the point prevalence rate of pediculosis capitis (human head lice) among children in the southern region of israel, 1431 elementary school children (6 to 15 years old), representing rural and urban environments, were examined and characterized by sociodemographic variables. an intervention program was initiated immediately after the first examination, which included "health education" for children and parents and free medicated shampoo (with pediculocides) provided for ea ... | 1988 | 3357714 |
| [significance of the adhesion site of pediculus capitis eggs in hair samples collected from barber shop floors]. | 1987 | 3507745 | |
| comparison of pediculicidal and ovicidal effects of two pyrethrin-piperonyl-butoxide agents. | a pyrethrin-piperonyl-butoxide shampoo was compared with a similarly formulated lotion for their pediculicidal and ovicidal effects against head lice. forty children with active pediculus humanus capitis infestation were randomly assigned to one of two groups for a single treatment with either the shampoo or the lotion. an average of ten nits were taken from each patient both before and after treatment. these eggs were incubated for 14 days, the resulting lice counted, and their conditions noted ... | 1987 | 3607818 |
| pilot study of the prevalence of head lice infestation in a population of saudi arabian children. | the prevalence of infestation with the head louse, pediculus capitis, was assessed among the child population, from birth to 10 years old inclusive, of the rapidly expanding saudi arabian city of jeddah. over a period of two months, 300 consecutive children attending the general practitioner for any reason were examined specifically to identify those infested with head lice: 37 cases of active infestation were found, which is an overall prevalence of 12%. an interesting distribution, however, wa ... | 1987 | 3609553 |
| [incidence of pediculus capitis infestation in the student population of alcala de henares]. | author studies incidence of pediculus capitis infestation in children of public schools in alcalá de henares, which was of 2.7 +/- 0.1% during years 1980-1984. epidemiologic aspects are commented. | 1986 | 3826920 |
| prevalence of head louse (pediculus capitis) infestation among inhabitants of the niger delta. | the prevalence of head louse pediculus capitis deg. among inhabitants of the niger delta was investigated. 5.7% of 7,360 subjects harboured head lice. the infestation was highest among the 6-13 year age group (13.5%) and decreased progressively with increase in age of the subjects. overall, more female subjects than male subjects harboured lice. the present study establishes the need for anti-louse campaign in the study area to reduce human sufferings caused by head louse particularly among chil ... | 1985 | 4081545 |
| [the infestation by pediculus humanus capitis in santiago, chile (author's transl)]. | 1973 | 4131725 | |
| [initial experiments in the development of a substance capable of dissolving the eggs of parasites (pediculus capitis and p. corporis)]. | 1971 | 5097210 | |
| [new aspects in electron microscopy by scanning in dermatology. cutaneous parasitology: pediculus humanus capitis and phtirus inguinalis]. | 1969 | 5384198 | |
| elephantiasis of external ears: a rare manifestation of pediculosis capitis. | a case of elephantiasis of the external ears associated with pediculus capitis is reported. hypersensitivity to the louse bite and melkersson-rosenthal syndrome are discussed. | 1983 | 6195874 |
| control of the human head louse with disulfiram and benzyl benzoate emulsions. a laboratory study. | the effects of disulfiram, benzyl benzoate and ddt, all components of a common preparation (tenutex) for the control of the head louse, were tested on louse eggs. a significant higher mortality of eggs was evident after treatment with (i) disulfiram, (ii) benzyl benzoate, (iii) these two substances mixed, and (iv) tenutex. ddt in this concentration had no effect on the survival of the eggs. long-time exposure to tenutex and tenutex without ddt significantly lowered the hatching frequency of eggs ... | 1984 | 6209891 |
| comparative study of ddt, carbaryl (sevin) and actellic (pirimiphos-methyl) in the treatment of pediculus humanus capitis infestation. | 1983 | 6405446 | |
| [an allergic reaction from contact with pediculus humanus capitis (head lice)]. | 1984 | 6493379 | |
| pediculosis capitis among rural and urban schoolchildren in nigeria. | the prevalence of head lice (pediculus humanus capitis) was investigated among urban and rural schoolchildren in ibadan city and three surrounding villages all in southern nigeria. 106 (5.7%) of 1860 urban schoolchildren examined were infested compared with only seven (1.5%) of 473 children from rural schools (p less than 0.05). pediculosis appears to be an urban problem which may be associated with overcrowding. however, the intensity of head louse infestation was low among the urban schoolchil ... | 1984 | 6506149 |
| [pediculus humanus capitis: a municipal antiparasite campaign among school children]. | the results of a prevalence survey of lice and a control program in the primary schools of a city in the barcelona metropolitan area (spain) are presented. crude prevalence was 6.10%, standard deviation 2.66. in another survey three months later, prevalence was 1.92%. differences among school grades had fallen. higher infestation levels were found between third and sixth grades. | 1984 | 6529030 |
| epidemiology and control of human head louse in malaysia. | a survey of 4.112 primary school children living in and around kuala lumpur, malaysia, revealed that 12.9% of the children were infested with pediculus humanus capitis. indians (28.3%) and malays (18.9%) have a higher prevalence than chinese (4.6%). the higher prevalence among indians and malays correlates well with their lower socio-economic status in the community; long hair also contributes to the higher rates of pediculosis among them. the prevalence rate was found to be related to socio-eco ... | 1983 | 6670116 |
| susceptibility to ddt and some other insecticides of head lice (pediculus capitis de geer) in czechoslovakia. | for testing the susceptibility of the head louse to insecticides impregnated bunches of polyamide fibres, whose diameter resembled that of human hair (0.1 mm) were used. in this manner a low mortality of control lice collected from infected persons was obtained (2.9% after 16 hours of exposure). even after 25 years of ddt use no apparent resistance could be demonstrated in 25 tested louse populations and cross resistance to permethrin in 7 tested populations. the diagnostic concentration for res ... | 1984 | 6745798 |
| novel phenomena arising from the use of acetylcholinesterase inhibiting insecticides against human head lice. | 1981 | 6783365 | |
| clinical and laboratory trial employing carbaryl against the human head-louse, pediculus humanus capitis (de geer). | 1981 | 6804141 | |
| resistance of head louse (pediculus humanus capitis de geer) to ddt in malaysia. | a survey of 308,101 schoolchildren conducted in 10 of 11 states in peninsular malaysia revealed that 10.7% have pediculus humanus capitis infestation. the results of treatment with 1%, 2% and 5% ddt in coconut oil in 374 cases reveal cure rates of 3.5%, 15.8% and 51.3%, respectively, suggesting that the head louse has probably developed resistance to this insecticide in malaysia. | 1982 | 7080159 |
| the incidence of the head louse (pediculus humanus capitis) among pupils of two schools in accra. | of 319 pupils examined by visual inspection for head lice in two large schools of contrasting socioeconomic environments in accra, ghana, 158 were found to be infected, with infection rates being higher in the school of lower socio-economic status. younger pupils (7 years) had significantly lower infection rates than older one (11 years). hair plaiting, communal use of toilet facilities and crowding have been found to be involved in the epidemiology of the head louse. a curious discrepancy was f ... | 1982 | 7112661 |
| [head lice problems. i. taxonomic position of pediculus capitis]. | the recognition of the head louse and the body louse being two different species is not quite new. this view is also supported by the author as can be seen in several publications. it is based on the biological species concept of the so-called new systematics. but even quite a few contributors doing research in the field of lice still ignore this concept. therefore, the author emphasizes all "biological" species criteria referring to modern epidemiological research done in the last decades. cons ... | 1982 | 7125284 |
| epidemiology of pediculus humanus capitis infestation in malaysian school children. | a survey of 308,101 primary school children in peninsular malaysia conducted in 1979 by the school health services, ministry of health, malaysia, revealed that 10.7% of children were infested with pediculus humanus capitis. the prevalence rate was higher in the economically less advanced states of terenganu (34%), kelantan (23%), and perlis (21%) than in the other states (4-13%). of 14,233 school children examined in the state of melaka, 26% of indians, 18.7% of malays, 6.1% of europeans, and 0. ... | 1981 | 7258487 |
| prevalence of pediculus humanus capitis among school girls of chuang-wei and nan-ao districts in i-lan county and man-chow district in ping-tung county, taiwan. | by using the naked eye examination and comb method, a field survey and combing collection of head louse (pediculus humanus capitis) among school girls in three different area (man-chow, nan-ao and chuang-wei) of taiwan were performed from july 1979 to february, 1980. the general infestation rate of head louse was 39.8% (or 998/2,509). in the primary schools, comparatively, the rate at man-chow (66.7%) was highest, the next at nan-ao (55.4%) and the lowest at chuang-wei (39.4%). while in the juni ... | 1981 | 7261698 |
| prevalence of head lice (pediculus capitis [de geer]) among children in a rural, central alberta school. | 1981 | 7306908 | |
| pediculus humanus capitis on children in mahé, seychelles. | the incidence of pediculus humanus capitis infestation in pre-school and schoolchildren in mahé, seychelles, was investigated. high infestation rates were discovered, particularly in urban schoolchildren at district schools. infestation in pre-schoolchildren increased with age. girls were more infested than boys. control of infestation will not be possible using only the child health service and the school health service. a combined approach is necessary based on the family unit. | 1980 | 7434423 |
| [treatment of pediculosis capitis in children with permethrin 1% shampoo or lotion]. | a clinical and entomological trial was carried out in 88 head louse (pediculus humanus capitis) infested children treated with a single dose of 1% permethrin shampoo or lotion. the sex distribution was 47 males an 41 females with ages ranging between 5 and 14 year olds. in order to assess the efficiency of treatments, search for adult forms, nymphs and eggs (nits) of the parasite was performed in each of the children, before and after treatment (30 minutes, 7 days and 21 days). the entomological ... | 1994 | 7654284 |
| [the adaptive potentials of human head and clothes lice when parasitizing on man]. | two species of lice (pediculus capitis and p. corporis) from various areas of russian and adjacent republics were examined and analysed for their specific features. each species was characterized in terms of its morphology, karyology, biology, reproductive isolation, parasitic connections, epidemiology and role as casual organisms. the two species live apart on the same host and they can live on it simultaneously. p. corporis has a higher influence on the host's metabolism than p. capitis; p. co ... | 1995 | 7770014 |
| a resistance of head lice (pediculus capitis) to permethrin in czech republic. | an outbreak of pediculosis at primary schools was recorded in the czech republic in 1992. almost 20% of children in some schools were infested. this outbreak can be attributed to the resistance of head lice to permethrin, which has not been mentioned in literature yet. the resistance factors established in three towns range between 2 and 385 and between 5 and 557 for lc50 and lc90 values, respectively. this resistance has developed after exclusive use of pyrethroids lotion and shampoo in the cze ... | 1995 | 7787823 |
| pediculosis capitis among urban school children in ilorin, nigeria. | a survey of 6882 primary school children living in ilorin, nigeria revealed that 3.7% of the children were infested with pediculus humanus capitis. infestation rate among the children in the islamic community was 4.1%, whereas in the christian area, the infestation rate was 3%. girls had a higher infestation rate (5.6%) than boys (2.1%). the highest infestation rate (28.4%) was observed among girls of low socioeconomic class, followed by their male counterparts (11.2%). factors associated with t ... | 1994 | 7807575 |
| pediculus humanus capitis in schoolchildren. | 1995 | 7885151 | |
| pediculus humanus capitis in schoolchildren. | 1995 | 7885152 | |
| pediculus humanus capitis in schoolchildren. | 1995 | 7885153 | |
| occurrence of pediculosis capitis in a population of children from gdańsk, sopot, gdynia and the vicinities. | elementary schools in gdańsk, sopot, gdynia and the neighbourhood, were studied during 1990-1992 to determine the actual extent of head louse infestation in school children as well as to see if there was correlation between incidence of head lice (pediculus humanus capitis) and some environmental factors as: the sex and the age of a child, the parents education, family situation and living condition of a child etc.--in the examined sample of normal population of 27,800 school children (aged 6-15 ... | 1994 | 7951398 |
| controlled study of malathion and d-phenothrin lotions for pediculus humanus var capitis-infested schoolchildren. | anecdotal reports have suggested that reduced efficacy of pediculicides against pediculus humanus capitis could be related to resistance to treatments. ovicidal and pediculicidal activities of 0.5% malathion and 0.3% d-phenothrin lotions were tested in an experimental model of p humanus capitis grown on rabbits to ensure that the two treatments were pharmacologically equipotent. we then did a randomised controlled trial in which the lotions were administered to 193 p humanus capitis-infested sch ... | 1994 | 7997000 |
| the prevalence of ectoparasites in ethiopian immigrants. | newly arrived ethiopian immigrants in israel were screened for ectoparasitic insects and mites. of 304 individuals examined 65.1% were infested with the head louse (pediculus humanus capitis). the infestation rate among children varied between 65 and 100%. children aged 6-11 years were the most infested group and no differences between girls and boys were found. the infestation rate in children was significantly higher than that found in adults. approximately 39% of those examined were infested ... | 1993 | 8349453 |
| [pediculus capitis pediculosis. did a new type of louse appear?]. | 1993 | 8502942 | |
| prevalence of head louse infestation in primary school children in kangwon-do, korea. | we tried to reveal the prevalence rates of the head louse infestation in school children in kangwon-do, korea in december 1990. a total of 912 children in four primary schools was examined. the positive rate for adults and/or nits of pediculus humanus capitis was 37.2%. one school was followed-up without specific intervention. there was no significant change of the prevalence rate 6 months after the first examination from 66.0% to 57.3%. we could see the persistent infestation rate if there was ... | 1993 | 8512901 |
| [the epidemiological significance of human lice in relation to the characteristics of their parasitism]. | epidemiological significance of clothes and head louse is determined first of all by the type of "parasite-host" connection. clothes louse has an immediate contact with man only during bloodsucking, it dwells in clothes, consumes big portions of blood and has great productivity. temperature factor is very important for pediculus corporis. if the man's temperature is growing the louse will abandon him. the comparison of various literature data and proper author's information has shown that pedicu ... | 1995 | 8533365 |
| permethrin resistance in the head louse pediculus capitis from israel. | head lice, pediculus capitis, were collected from children aged 3-12 years in maale adumin, a town near jerusalem, after reports of control failure with the pyrethroid insecticide permethrin. a total of 1516 children were examined: living lice and eggs were found on 12.1% of the children; or another 22.8% of the children only nits were found. twice as many girls as boys (8.1% v 4%) were infested with lice and or nits. head lice collected from infested children were exposed to permethrin impregna ... | 1995 | 8541597 |
| [first cases of resistance of pediculus capitis linné 1758 to malathion in france]. | 1995 | 8545334 | |
| topical application of ivermectin for human ectoparasites. | ivermectin is used in veterinary practice against many ectoparasites and endoparasites and is the drug of choice for treatment of human onchocerciasis. this study was carried out to investigate the effect of topical application of this drug against human ectoparasites (sarcoptes scabiei and pediculus humanus capitis). ivernectin was found to have a curative effect on head lice after a single topical application. in patients with scabies, the drug was also found to be effective after a single app ... | 1995 | 8561270 |
| a comparative study on the efficacy of 0.4% sumithrine and 1% lindane in the treatment of pediculus humanus capitis in turkey. | two different chemicals were used in the treatment of pediculus h. capitis in cases, who were found to be infested during the screening of 1 secondary and 3 elementary schools in bostanli-karsiyaka, izmir. sumithrine was found to be more effective than lindane according to the follow up control performed a month after the treatment. while the efficacy of sumithrine in emlakbank elementary school, metin asikoglu elementary school and emlakbank secondary school was noted as 93%, 96% and 86.8% resp ... | 1996 | 8721244 |
| model for the control of pediculus humanus capitis. | 1996 | 8885664 | |
| [tests for evaluating the effectiveness of pediculicides: importance and limitations]. | the obligation to prove pediculicides efficacy is relatively recent. two tests are required by the authorities to obtain registration. in vitro test (with pediculus humanus humanus) is the first step to evaluate the efficacy of new molecules. it must be followed by bio-clinical tests (with infested children by pediculus humanus capitis). for those tests the authors advise to respect the "three units rule": unit of time (no more than 2 days for the test), unit of place (same environment) and unit ... | 1996 | 8991612 |
| the prevalence of pediculus humanus capitis among the students of a secondary and three elementary schools in karsiyaka-izmir, turkey. | during november-december 1993, 5347 students of a secondary and 3 elementary schools in bostanli-karsiyaka, where socio-economic and cultural status are relatively high, were examined for pediculosis capitis. in 225 students (4.2%) eggs and/or adults were detected. 181 (4.14%) out of 4365 elementary school students and 44 (4.48%) out of 982 secondary school students were infested with pediculus humanus capitis. comparison with results of previous results are shown in the text. | 1997 | 9097537 |
| adaptive sex-ratio manipulation in pediculus humanus capitis: possible interpretations of buxton's data. | the sex-ratio pattern of an exceptional population of human head lice (collected in the colombo prison, ceylon, in 1934 to 1936) was found to be consistent with a current hypothesis on adaptive sex-ratio manipulation. data suggest that the louse burdens were isolated and, therefore, small burdens were inbred. thus, local mate competition favored females that produced offspring with a female bias. this is the first report to suggest that anopluran lice are capable of adaptive sex-ratio manipulati ... | 1997 | 9194847 |
| head louse infestations: epidemiologic survey and treatment evaluation in argentinian schoolchildren. | our aim was to demonstrate that the treatment of individual cases is effective, but not sufficient, to control endemic pediculus capitis, and that eradication of the epidemiologic school focus may lower significantly the prevalence of infestation. statistical data on the degree of infestation relating to socio-economic and cultural variables were also updated. therapeutic effects and educational impact were evaluated. | 1997 | 9427073 |
| the potential effectiveness of essential oils as a treatment for headlice, pediculus humanus capitis. | essential oils of aniseed, cinnamon leaf, red thyme, tea tree, peppermint, nutmeg, rosemary, and pine were tested in vitro against lice, pediculus humanus. all the oils except for rosemary and pine were found to be effective in the laboratory when applied in an alcoholic solution and followed by a rinse the following morning in an essential oil/vinegar/water mixture. peppermint and nutmeg were only used as a blend rather than as individual oils. problems of solubility and toxicity are discussed, ... | 1996 | 9439284 |
| comparative study of the clinical effectiveness of a pyrethrin-based pediculicide with combing versus a permethrin-based pediculicide with combing. | in a randomized, evaluator-blinded clinical trial, 190 patients were treated for pediculus humanus capitis infestations with a pyrethrin-piperonyl-butoxide pediculicide (rid; py-pb) and a permethrin pediculicide (nix; pm). a total of 160 patients were evaluable for nit-combing speed, 156 patients were evaluable for efficacy at day 7, and 150 patients were evaluable for efficacy at day 14. both py-pb and pm showed 100% efficacy at day 7. at day 14, one patient in the pm group had an apparent rein ... | 1998 | 9475695 |
| [epidemiological study of pediculosis capitis and scabies in schoolchildren from antofagasta, chile, 1995]. | in order to contribute to a better knowledge of the pediculosis capitis and scabies during march-december 1995, 1122 primary schoolchildren under 14 years of age in the city-port of antofagasta in northern chile (20 degrees south lat.), were examined. a total of 285 (25.4%) were found to be infested with pediculus humanus capitis and only 20 (1.8%) with sarcoptes scabiei. in general the rates of infestation to both ectoparasitic diseases were higher in groups of younger schoolchildren, also high ... | 1997 | 9497538 |
| [pediculosis capitis, a permanent and renewed problem]. | pediculosis capitis is still a world-wide public health problem. pediculus humanus capitis, the agent, is a permanent and specific human blood-sucking ectoparasite extended throughout the world. by the end of sixties and begin of seventies an important increase of prevalence of this parasitose was observed in many countries and lice infestation throughout the world was estimated to run into hundreds of millions. decline of personal hygiene, increased promiscuity and long hairstyle, particularly ... | 1997 | 9640684 |
| laboratory studies of susceptibility and resistance to insecticides in pediculus capitis (anoplura; pediculidae). | the susceptibility of local head lice to permethrin, sumithrin, deltamethrin, and carbaryl was determined by laboratory bioassays in field-collected colonies. head lice collected from the infested heads of children 6-12 yr old were tested within 3 h of collection. the longest survival of control insects in the laboratory was obtained by keeping them in the dark at 18 degrees c and 70-80% rh. the base line susceptibility data obtained for insects collected from children not treated for lice, the ... | 1998 | 9775614 |
| pyrethroid resistance mechanisms in the head louse pediculus capitis from israel: implications for control. | in israel, the head louse, pediculus capitis, developed resistance to ddt through the extensive use of this insecticide until the 1980s. in 1991, permethrin was introduced for control of ddt resistant p. capitis in israel, leading to control failure of this pyrethroid insecticide by 1994. pyrethroid resistance of p. capitis in israel extends to phenothrin, which has not been used for louse control. we identified a glutathione s-transferase(gst)-based mechanism of ddt resistance in the israeli he ... | 1999 | 10194754 |
| prevalence and treatment of pediculus capitis infestation among aboriginal school children in northern taiwan. | in the present study, pediculosis was investigated among a total of 2,725 children from 35 primary schools in hsiulin district of hualien county, jenai district of nantou county, wulai district of taipei county, chienshih district of hsinchu county, fushing district of taoyuan county, and nanao district of ilan county. the overall infestation rate was 12.8%. the rates by districts were 19.7%, 17.3%, 16.7%, 15.1%, 7.9%, and 3.0%, respectively. the pediculicides including nix (permethrin 1%) 56 gm ... | 1999 | 10330800 |
| scanning electron microscopy of human head louse (anoplura: pediculidae) egg and its clinical ramifications. | pediculosis affects more elementary school students than all other communicable childhood diseases combined, excluding the common cold. the current study using scanning electron microscopy visualized operculums through which developing embryos received oxygen, as well as fracture lines within the adherent sheath by which the egg is attached to the hair. using microscopic techniques, including freeze-fracturing, the mode of attachment of the sheath to the hair follicle was observed, in addition t ... | 1999 | 10467772 |
| histochemical analysis of the nit of pediculus humanus capitis (anoplura: pediculidae). | histochemical stainings of head louse nits were performed and observations indicated that the nit sheath was nonchitinous. one discernable membrane composed of hyaluronic acid was established that encircled the larvae within the egg. the structural framework of the egg included a definite lattice around each aeropyle of the operculum, through which oxygen exchange occurred. | 1999 | 10467785 |
| resistance and the control of lice on humans and production animals. | phthiraptera (lice) are specialised insects adapted to parasitise many warm-blooded vertebrates, including domestic animals and humans. often, attempts by the host to alleviate the irritation created by lice, causes derangement of the hair/fur coat. unless treated, this derangement may cause economic losses due to hide damage and/or downgrading of wool/hair/fur. in 1981, application of aqueous insecticide solutions (dipping) for the control of sheep body lice (bovicola ovis) was largely supersed ... | 2000 | 10719122 |
| susceptibility of british head lice, pediculus capitis, to imidacloprid and fipronil. | the head louse, pediculus capitis de geer (phthiraptera: pediculidae) has developed resistance to organochlorines, the organophosphate malathion and to pyrethroids in the u.k. therefore, headlice from bristol school children were bioassayed against two new insecticides, fipronil and imidacloprid. pediculus capitis was fully susceptible to imidacloprid, but it required a relatively high dose and acted slowly. fipronil acted faster at lower dose, but seemed to be affected by cross-resistance in a ... | 2000 | 10759321 |
| overdiagnosis and consequent mismanagement of head louse infestations in north america. | lay personnel and many health care workers in the united states believe that head louse infestations caused by pediculus capitis are exceedingly transmissible and that infested children readily infest others. schoolchildren therefore frequently become ostracized and remain so until no signs of their presumed infestations are evident. repeated applications of pediculicidal product and chronic school absenteeism frequently result. | 2000 | 10959734 |
| resistance to insecticides and effect of synergists on permethrin toxicity in pediculus capitis (anoplura: pediculidae) from buenos aires. | permethrin-resistant colonies of pediculus capitis (de geer) from buenos aires were used to establish a resistance profile and to examine resistance mechanisms. all permethrin-resistant head lice (resistance ratio from 52.8 to > 88.7) were also resistant to d-phenothrin (resistance ratio from 40.86 to > 48.39) and deltamethrin (resistance ratio from 16.24 to 38.06). no cross-resistance to carbaryl was found in any of the pyrethroid-resistant p. capitis tested. otherwise, all resistant colonies s ... | 2000 | 11004784 |
| persistent head lice following multiple treatments: evidence for insecticide resistance in pediculus humanus capitis. | viable head lice were found on the scalps of two family members following multiple topical insecticide treatments. the possibility of reinfestation had been reliably excluded. persistent infestation could be diagnosed only after cutting the hair and combing repeatedly, which allowed visualization of juvenile (nymphal) and adult lice. insecticide-resistant headlouse infestations are probably much more common than is generally realised and may persist unnoticed, so that more aggressive approaches ... | 2000 | 11105372 |
| pediculosis capitis in northern jordan. | little is known about the prevalence of pediculosis among school students in northern jordan. | 2000 | 11168661 |
| head lice resistance: itching that just won't stop. | to evaluate the reports of resistance and cross-resistance to pediculicides in the head louse (pediculus capitis), as well as the mechanisms involved. | 2001 | 11197569 |
| scanning electron microscopy of adult head lice (pediculus humanus capitis) with focus on clinical implications. | the incidence of head lice infestations in north america is escalating with an estimated 12 million cases of head lice per year despite the existence of insecticidal therapies. | 2000 | 11231195 |
| comparative efficacy of treatments for pediculosis capitis infestations: update 2000. | to evaluate the pediculicidal and ovicidal activity of 5 head lice products. | 2001 | 11255326 |
| lipid and protein composition at different developmental stages of pediculus capitis (arthropoda, phthiraptera). | protein and lipid compositions were studied at different developmental stages of pediculus capitis de geer 1778. phosphatidylcholine was found to be the predominant lipid at all stages and in both sexes. palmitic and oleic acids were the main fatty acids throughout the 3 stages studied. a marked decline was observed in the total lipid content and triacylglyceride concentration during development, suggesting that their consumption is an energy source. the electrophoretic mobility revealed the pre ... | 2001 | 11780806 |
| [presence of pediculosis in people living with children positive to pediculus capitis (anoplura: pediculidae)]. | in order to determine the frequency of pediculosis in persons living with children diagnosed as positive to pediculus capitis in educational institutions of the "carmelo" people's council, the houses of 58 children who repeatedly had pediculosis from may to september, 1997 were visited. 14.54% of the 237 examined persons were positive (40 individuals). 82.5% were females. the mother was the most affected relative (32.5%). 30 positive children were matched by age, sex and grade with 30 negative c ... | 2000 | 11826528 |
| comparative in vitro pediculicidal efficacy of treatments in a resistant head lice population in the united states. | to compare the pediculicidal activity of 5 head lice products available in the united states on head lice from south florida. | 2002 | 11843643 |
| head lice: is there a solution? | head lice is an old problem that won't go away. infestation with the head louse pediculus capitis is still common in school-aged children. the majority of information about this condition is based on anecdotal evidence. there is a definite need for the standardization of detection methods for diagnosis and epidemiological purposes, and for properly designed trials to ascertain the effectiveness of the different treatment methods available. | 2000 | 11964780 |
| toxic effect of aliphatic alcohols against susceptible and permethrin-resistant pediculus humanus capitis (anoplura: pediculidae). | the effectiveness of 1-octanol, 1-nonanol, 1-decanol, 1-undecanol, and 1-dodecanol was evaluated by immersion method against susceptible and permethrin-resistant head lice, pediculus humanus capitis de geer, from buenos aires, argentina. all the tested alcohols showed knockdown effect at 10 min and mortality 18 h after treatment. the highest activity was found for the 1-dodecanol (kc50 2.55%, lc50 2.28%) and the lowest for 1-octanol (kc50 8%, lc50 4.46%). the toxicity to the head lice systematic ... | 2002 | 12061440 |
| spatial and kinetic factors for the transfer of head lice (pediculus capitis) between hairs. | although the global increase in pediculosis is well known, little is known about the exact nature of head lice (pediculus capitis) transmission. several mechanisms have been proposed such as head-to-head and fomite transmission, but some contention remains concerning the primary transmission route. this study investigated spatial and kinetic factors influencing the dynamics of hair-to-hair transfer to clarify further how head lice transmit from head to head. forty-eight factorial experimental tr ... | 2002 | 12230505 |
| a preliminary pilot survey on head lice, pediculosis in sharkia governorate and treatment of lice with natural plant extracts. | twelve different representative areas in sharkia governorate were surveyed for head lice, pediculus humanus capitis. the pre-valence was investigated among 120 houses containing 2,448 individual, with different age, sex and socioeconomic status. examination was done by naked eye aided with hand-lens. a total of 137 individuals were infested. infestation rates were higher in the rural areas with low socioeconomic levels, concrete houses with over-crowded family members. children had significantly ... | 2002 | 12512805 |
| potential role of head lice, pediculus humanus capitis, as vectors of rickettsia prowazekii. | since the pioneering work of charles nicolle in 1909 [see gross (1996) proc natl acad sci usa 93:10539-10540] most medical officers and scientists have assumed that body lice are the sole vectors of rickettsia prowazekii, the aetiological agent of louse-borne epidemic typhus (lbet). here we review the evidence for the axiom that head lice are not involved in epidemics of lbet. laboratory experiments demonstrate the ability of head lice to transmit r. prowazekii, but evidence for this in the fiel ... | 2003 | 12783309 |
| susceptibility of head lice (pediculus humanus capitis) to pediculicides in australia. | infestation with head lice, pediculus humanus capitis, is a worldwide problem, especially among primary (elementary) school children. although studies in many different countries indicate lower levels of susceptibility to certain insecticides than expected ("resistance"), there is no empirical data from australia. data on the susceptibility of head lice to malathion, pyrethrums and permethrin were collected from four schools in brisbane and one school in northern queensland. since no completely ... | 2003 | 12827503 |
| ovicidal and adulticidal effects of eugenia caryophyllata bud and leaf oil compounds on pediculus capitis. | the toxicity of eugenia caryophyllata bud and leaf oil-derived compounds (acetyleugenol, beta-caryophyllene, eugenol, alpha-humulene, and methyl salicylate) and congeners of eugenol (isoeugenol and methyleugenol) against eggs and females of pediculus capitis was examined using direct contact application and fumigation methods and compared with those of the widely used delta-phenothrin and pyrethrum. in a filter paper diffusion bioassay with female p. capitis, the pediculicidal activity of the eu ... | 2003 | 12903940 |
| permethrin-resistant human head lice, pediculus capitis, and their treatment. | to compare the pediculicidal activity of ovide lotion and its active ingredient, 0.5% malathion, with nix and its active ingredient, 1% permethrin, in permethrin-resistant head lice. | 2003 | 12925385 |
| prevalence and treatment of pediculus humanus capitis with 1% permethrin and 0.4% d-phenothrin in turkey. | pediculosis humanus capitis (head lice) is an important public health problem among school children. in our study, 20,612 schoolchildren (10,367 boys, 10,245 girls) were examined for pediculus humanus capitis in 36 elementary schools between december 1996 and february 1998 in ankara, turkey. the prevalence of pediculosis capitis infestation was found to be 3.4% (701/20,612). of these, 382 students were treated with application of 1% permethrin cream rinse, and 184 students with 0.4% d-phenothrin ... | 2003 | 12926604 |
| molecular evolution of pediculus humanus and the origin of clothing. | the human head louse (pediculus humanus capitis) and body louse (p. humanus corporis or p. h. humanus) are strict, obligate human ectoparasites that differ mainly in their habitat on the host : the head louse lives and feeds exclusively on the scalp, whereas the body louse feeds on the body but lives in clothing. this ecological differentiation probably arose when humans adopted frequent use of clothing, an important event in human evolution for which there is no direct archaeological evidence. ... | 2003 | 12932325 |
| the prevalence of pediculosis capitis in schoolchildren in mersin, turkey. | pediculosis capitis is an endemic parasitosis affecting many countries of the world. the aim of this study was to investigate the incidence of head lice infestation in mersin, turkey. | 2003 | 12956680 |
| the effect of house spraying with dieldrin on the incidence of the head-louse, pediculus humanus capitis. | 1959 | 13666191 | |
| preliminary studies on the use of sorptive dusts for the control of the human lice, phthirus pubis (l.) and pediculus humanus capitis de geer. | 1963 | 13993367 | |
| the geographical segregation of human lice preceded that of pediculus humanus capitis and pediculus humanus humanus. | in order to investigate human-louse phylogeny, we partially sequenced two nuclear (18s rrna and ef-1 alpha) and one mitochondrial (coi) genes from 155 pediculus from different geographical origins. the phylogenetic analysis of 18s rrna and ef-1 alpha sequences showed that human lice were classified into lice from sub-saharan africa and lice from other areas. in both clusters, head and body lice were clearly grouped into two separate clusters. our results indicate that the earliest divergence wit ... | 2003 | 14558476 |