| acquired resistance to the human hookworm necator americanus in mice. | balb/c mice were exposed to primary or secondary infection with the hamster-adapted strain of necator americanus, and the course of infection was monitored through worm recovery and immunological assays. significantly fewer viable larvae were recovered from the skin site of reinfected mice on day 2 post-infection, and fewer larvae resided in the lungs of challenged mice 3-5 days after infection, suggesting that the skin was involved in resistance to secondary infection. the serum antibody respon ... | 1988 | 3194147 |
| [histological and histochemical effects of tribendimidine on necator americanus]. | | 1988 | 3213546 |
| hookworm infection in kweneng district, botswana, a prevalence survey and a controlled treatment trial. | stool specimens from a sample of schoolchildren at six schools in kweneng district were examined for hookworm infection, using the brine flotation method. necator americanus was the only hookworm identified. the western part of the district forms part of the kalahari desert, and in four villages here 90%, 88%, 88% and 86% of the children were infected. in two villages in the eastern non-desert part, only 13% and 9% were infected. most infections were light. there was no significant correlation b ... | 1985 | 3914119 |
| simultaneous isolation of hiv-1 and hiv-2 from an aids patient. | two distinct human immunodeficiency viruses, hiv-1sf480 and hiv-2uc2 were isolated simultaneously from the blood of an ivory coast patient with aids. the hiv subtypes were segregated by their differential ability to infect established human cell lines and by the cell surface expression of type-specific viral antigens. the viruses could be distinguished by both immunoblot and southern blot analyses. the results indicate that an individual can be infected by both hiv subtypes. | 1988 | 2904524 |
| the course of primary infection with necator americanus in syngeneic mice. | | 1988 | 3366536 |
| effect of single-dose albendazole and single-dose mebendazole on necator americanus. | one hundred two children (43 males and 59 females) aged 6 to 14 years with positive stool examination by kato-katz and/or harada-mori culture techniques for n. americanus, were randomly divided into two groups. group i with 48 children were treated with a single dose albendazole, 400 mg. group ii, 54 children, received a single dose mebendazole, 600 mg. after treatment, repeated stool examination was performed on day 14, day 21 and day 28. the children were considered cured when stool examinatio ... | 1989 | 2692189 |
| cuticle preparations from necator americanus and their immunogenicity in the infected host. | cuticle samples have been prepared from the human parasitic nematode necator americanus using detergent solubilisation with sodium dodecyl sulphate and subsequent reduction of disulphide bonds using 2-beta-mercaptoethanol. it would appear that n. americanus, like many other nematodes, relies on relatively small collagenous proteins, linked by disulphide bonds, to maintain the integrity of its cuticle. these molecules are normally hidden from the immune system during the course of infection but a ... | 1988 | 3386684 |
| an investigation of hookworm infection and reinfection following mass anthelmintic treatment in the south indian fishing community of vairavankuppam. | hookworm infections, as assessed by counting worms expelled following anthelmintic treatment and by egg output, were found to be of low prevalence and intensity in a south indian fishing community. the initial overall prevalence of infection in the community was 43%, and the average burden was estimated at 2.2 hookworms per person. the age profiles of prevalence and intensity differed between males and females, with the latter harbouring significantly higher levels of infection. children of both ... | 1988 | 3405641 |
| ivermectin for human strongyloidiasis and other intestinal helminths. | since ivermectin, a mixture of 2 closely related macrocyclic lactones, has proven highly effective against animal intestinal nematodes, trials were undertaken to determine its efficacy against human intestinal nematodes. we tested 110 patients with strongyloidiasis and 90 with enterobiasis; many had other intercurrent intestinal nematode infections. stool examinations were done before and after patients were given a single dose of oral ivermectin capsules (50, 100, 150, or 200 micrograms/kg body ... | 1989 | 2929853 |
| the response of adult and free-living stages of necator americanus, in vitro, to anthelmintics. | the in vitro response of adults (males and females) and free-living stages of necator americanus one of the human hookworms, to a wide variety of 20 broad and narrow spectrum anthelmintics was tested. almost all the broad spectrum anthelmintics influenced males, females and free-living stages at different levels and showed good activity with ec50 values varying from about 0.0002 and 0.0007 mg/l for pyrantel pamoate and tricofenol piperazine respectively to about 8.47 and 7.6 mg/l for morantel ta ... | 1987 | 3444926 |
| hookworm (necator americanus) and strongyloides fuelleborni-like prevalence and egg count with age in highlands fringe people of papua new guinea. | | 1987 | 3475865 |
| necator americanus in neonatally infected hamsters. the time-course of infection and antibody response to the surface antigens of l4 and adult worms. | neonatal hamsters were infected with a hamster-adapted strain of necator americanus, and the time-course of infection was followed by worm and faecal egg counts. parasite eggs were first recorded during the 6th week of infection, increasing rapidly thereafter to peak in weeks 7-10. male hamsters excreted more eggs than females, but both sexes were equally susceptible to infection and harboured comparable worm burdens. faecal egg counts declined from week 10 onwards and this was associated with a ... | 1987 | 3503418 |
| a study of the effectiveness of mebendazole and pyrantel pamoate as a combination anthelmintic in papua new guinean children. | a mixture of 150 mg mebendazole and 30mg pyrantel pamoate was given on 3 consecutive or near-consecutive days to 70 children infected with one or more of necator americanus, ascaris lumbricoides, strongyloides stercoralis, s. fuelleborni-like and trichuris trichiura. this treatment had an efficacy of 95 per cent for n. americanus infections, 100 per cent for a. lumbricoides, 57 per cent for strongyloides spp., and 75 per cent for t. trichiura. the results indicate that the treatment given is eff ... | 1985 | 3862315 |
| [comparison of affects of bephenium hydroxynaphthoate, tetramisole hydrochloride and tetramisole pamoate in the treatment of ancylostoma duodenale and necator americanus infections]. | | 1973 | 4200747 |
| distribution of ancylostoma duodenale and necator americanus in ethiopia. | | 1985 | 3876932 |
| [hypotheses on the origin of certain parasites on the latin american continent]. | the south american continent has been connected to africa over millions of centuries. in prehistorical time, the filling of the bering strait allowed passage on firm ground between asia and north america. south american peopling has thus occurred from north america, through the pacific sea and, from the 15th century a.c., through the atlantic. necator americanus was present in south america prior to the arrival of black slaves and its african origin is probably related to contacts between africa ... | 1985 | 3928184 |
| hookworm infection in a rural community in south india and its association with haemoglobin levels. | faecal samples were obtained from 1113 persons living in a rural area in south india, and the hookworm ova load (necator americanus) was determined using kato's thick smear method. evidence of hookworm infection was present in 92%, 77% having a count of under 100 epg, 11% a count of 1000 to 1999 epg, and 4% having counts between 2000 and 12,000 epg. females had significantly higher ova counts than males on the average, but age did not appear to have any effect. haemoglobin was also estimated: 80 ... | 1987 | 3503419 |
| comparison of bitoscanate (joint) and tetrachlorethylene in treatment of necator americanus infection. | | 1972 | 4559712 |
| [in vitro action of l. tetramisole on necator americanus infesting larvae]. | | 1972 | 4678485 |
| comparative study of pyrantel pamoate, bephenium hydroxynaphthoate, and tetrachloroethylene in the treatment of necator americanus infections. | | 1973 | 4684888 |
| necator americanus: temperature, ph, light, and larval development, longevity, and desiccation tolerance. | the effect of incubation temperature and ph on the hatch rate of eggs of necator americanus, and the desiccation tolerance of the resulting infective stage-3 larvae were investigated in the laboratory under controlled conditions. hatching did not occur below 15 c and above 35 c. a 21% hatch rate was obtained at 15 c while a 10.6% hatch rate was obtained at 35 c. the highest hatch rate (93.7%) was obtained at 30 c. the optimum ph for hatching was 6.0, but the larvae did not reach the infective st ... | 1987 | 3569472 |
| experimental and field studies on the viability of eggs, and the infectivity of third-stage larvae of the human hookworm necator americanus recovered from the creek waters of the niger delta, nigeria, and their epidemiological significance. | in a combined field and laboratory study, the eggs and 3rd-stage infective larvae of the human hookworm necator americanus were recovered from the creek waters of the niger delta, nigeria. they were tested for viability and infectivity. eggs recovered from fresh water creeks showed a viability or hatching index of between 17.5 and 23.7%. eggs recovered from brackish water showed a viability index of 18.8-21.4% in 'normal' cultures, and a maximum index of 6.3% when cultured in brackish water. the ... | 1988 | 3362571 |
| the clinical and immunologic responses of normal human volunteers to low dose hookworm (necator americanus) infection. | five normal human volunteers were exposed to approximately 50 infective larvae of necator americanus and were observed for the development of clinical signs or symptoms and for changes in blood eosinophil levels, igg antibody titers, total and parasite-specific ige, and lymphocyte blastogenic responses for 6-10 weeks. bronchoalveolar lavage was performed on four subjects prior to infection and at times when larval migration through the pulmonary tree was likely. eggs were demonstrated in the sto ... | 1987 | 3605493 |
| response of preadult necator americanus to some known anthelmintics in hamsters. | hamsters infected with laboratory-adapted preadult necator americanus were dosed with 6 reference anthelmintics. their efficacy was measured in terms of percentage cure of infected animals as well as percentage worm reduction following treatment. mebendazole and pyrantel were equally effective in this system. other anthelmintics, including anti-hookworm compound, bephenium hydroxynaphthoate, were less effective. the comparative results revealed that the n. americanus model is sensitive and relia ... | 1986 | 3948582 |
| necator americanus: activity patterns in the egg and the mechanism of hatching. | | 1974 | 4856051 |
| clinical trials of jonit (hoechst 16 842) in the treatment of necator americanus infection in thailand. | | 1968 | 4891522 |
| serological reactions to infection with necator americanus. | | 1969 | 4893921 |
| [effects of various anti-hookworm drugs on the cholinesterase activity of necator americanus, ancylostoma duodenale, ancylostoma caninum and nippostrongylus braziliensis]. | | 1987 | 3621504 |
| [immunochemical studies of the intestinal serum protein loss in necator americanus carriers]. | | 1971 | 4999779 |
| selective primary health care: strategies for control of disease in the developing world. xvii. hookworm infection and anemia. | approximately one-quarter of the world's population is infected with either ancylostoma duodenale or necator americanus. humans transmit the hookworm by fecal contamination of the soil. the eggs hatch and the larvae may survive several months in warm, damp soil. humans are infected when the larvae penetrate the skin and migrate through the body to the intestines, where the median survival time of the hookworm is one year. the loss of red blood cells into the gut is proportional to the worm load. ... | 1985 | 3983524 |
| necator americanus: behaviour in hamsters. | | 1972 | 5049756 |
| [studies on the cultivation of the adult necator americanus in vitro]. | | 1985 | 4006115 |
| [infestation by necator americanus of white mice rendered immunotolerant by massive injections of heterologous proteins]. | | 1969 | 5371170 |
| human hookworm necator americanus in the intestines of young adult hamsters. | | 1987 | 3437359 |
| development of necator americanus in golden hamsters mesocricetus auratus. | | 1970 | 5501446 |
| differential efficacy of mebendazole and albendazole against necator americanus but not for trichuris trichiura infestations. | the effect of single oral doses of albendazole 600 mg and mebendazole 1 g given to 56 and 60 men, respectively, with t. trichiura and/or n. americanus infestation has been studied. both albendazole and mebendazole cured more than 90% of t. trichiura infestations, but only albendazole (95%) and not mebendazole (21%) had a high cure rate for n. americanus infestations. thus, albendazole is the preferred benzimidazole derivate for the mass treatment of subjects with t. trichiura and/or n. americanu ... | 1987 | 3653234 |
| hypersensitivity to some nematode antigens. | immediate and delayed skin reactions to antigens derived from ascaris suum, necator americanus, and toxocara canis are described in three subjects and related to eosinophil counts and serum ige levels. one, who had laboratory contact with ascarides but no known infection, gave positive immediate reactions to all three antigens. another, following repeated experimental infection with necator, gave positive immediate reactions to all three antigens and a delayed reaction to necator alone. the thir ... | 1971 | 5541233 |
| adherence of human eosinophils to infective filariform larvae of necator americanus in vitro. | eosinophilia is common in hookworm infection but the interaction between eosinophils and the larval stage of the parasite is poorly understood. the present study was conducted to test the ability of the eosinophils to adhere to infective filariform larvae of necator americanus in vitro. adherence of eosinophils to the larvae was found to be serum dependent. antibody facilitated eosinophil adherence but this was maximal in the presence of complement. the adherence was greatly diminished by egta t ... | 1987 | 3660070 |
| [studies on the mode of hookworm infection. experiments on mastication and deglutition of raw vegetable infected with necator americanus larvae]. | | 1968 | 5752716 |
| comparative study of different doses of mebendazole in hookworm infection. | sixty six children (40 males, 26 females) aged from 4 to 14 years with hookworm infection were treated with mebendazole. thirty one and 35 children were treated with mebendazole 300 mg single dose and 600 mg conventional regimen respectively. stool examination by kato-katz technique were done for 3 consecutive days before treatment and on day 14-16, 21-23 after treatment. the cure rate with 300 mg mebendazole was 16.1% with 90.9% egg reduction while 600 mg mebendazole gave 91.4% cure rate with 9 ... | 1987 | 3672183 |
| morphological differences between ancylostoma duodenale and necator americanus in the fourth larval stage. | | 1966 | 5910445 |
| experimental infection of rabbits with the human hookworm , necator americanus. | | 1967 | 6062058 |
| a survey of gastrointestinal parasites in a local government area of south-west nigeria. | in the course of a survey of gastro-intestinal parasites among humans in iwo local government area in south-western nigeria, eggs of helminths found were those of ascaris lumbricoides, necator americanus, trichuria trichiura and strongyloides stercoralis while protozoan cysts encountered were those of entamoeba histolytica and entamoeba coli. about 51% of the 283 faecal samples were positive for parasitic ova or cysts and 24% possessed mixed infection. incidence of ascaris was highest followed b ... | 1984 | 6094377 |
| response of laboratory-adapted human hookworm and other nematodes to ivermectin. | the activity of ivermectin was examined in necator americanus, a human hookworm, adapted to the laboratory hamster. a dose of 30 mg kg-1 x 1 or 10 mg kg-1 x 2 was required for complete clearance of pre-adult n. americanus; however, hamsters carrying adult n. americanus were completely cured of infection by doses of 15 mg kg-1 or 7.5 mg kg-1 x 2. the doses of ivermectin required for complete elimination of n. americanus were much higher than those reported for other intestinal nematodes. the prob ... | 1986 | 3675034 |
| the growth and migration of necator americanus following infection of neonatal hamsters. | necator americanus was studied in neonatally infected hamsters in order to determine precisely the growth and migration of the parasite in this laboratory host. most larvae stayed at the skin infection site for at least 48 hours following administration of larvae and the movement to the lungs commenced on day 3. there was no significant growth at the skin site or during the first two days in the lungs. 98% of the larvae were recovered from the lungs by day 6 and showed signs of some growth and d ... | 1986 | 3726976 |
| an improved technique for experimental infections with skin penetrating nematode larvae (necator americanus). | | 1986 | 3781729 |
| albendazole: placebo-controlled study in 870 patients with intestinal helminthiasis. | a total of 870 patients, both males and females, from 3 to 79 years old, received either albendazole or a placebo for the treatment of nematode and cestode infections. each patient was interviewed and underwent a complete physical examination on the initial visit. in addition, complete blood count, clinical blood chemistry values and routine urinalysis were performed before and at least 24 hours after the last treatment. stool examinations were performed before, 7 and 21 days after treatment. di ... | 1983 | 6362125 |
| hookworm burdens and faecal egg counts: an analysis of the biological basis of variation. | the relationships between various measures of faecal egg output and hookworm burdens were investigated in 84 villagers from west bengal with mixed necator americanus and ancylostoma duodenale infections. the pattern of day to day variability in egg counts from individuals can be characterized by the linear relationship between the logarithms of the variances and means. egg output is shown to be non-periodic in long runs of day-to-day records. the distribution of worm numbers per host is well des ... | 1985 | 3832493 |
| ovicidal effects of albendazole in human ascariasis, ancylostomiasis and trichuriasis. | albendazole, a broad spectrum anthelmintic, was administered as a 400 mg single dose to 20 patients harbouring ascaris (ten cases), hookworms (four cases each of ancylostoma duodenale and necator americanus) and trichuriasis (ten cases). faeces were obtained before treatment and during the following five days. coprocultures were made for 90 days for ascaris and trichuris eggs, hookworm eggs were cultured by the harada-mori technique for at least eight days. albendazole was ovicidal against all f ... | 1985 | 4039128 |
| [new guinea and australia: their common pathology]. | new guinea and australia have been joined together during several hundred millions of years. inhabited by men 40,000 years ago, these populations (papous and aborigenes) have been separated of the others during several millenaries. the first invaders brought with them plasmodiums, necator americanus, wuchereria bancrofti and dengue virus. brugia malayi, because lack of primates, took non root in new guinea; the virus of murray valley encephalitis is autochthonous; the high frequency of burkitt l ... | 1985 | 4085103 |
| survey for soil-transmitted helminths in asahan regency, north sumatra, indonesia. | the survey on soil-transmitted helminthiasis was carried out in the three villages of asahan regency, north sumatra, indonesia, between october 1981 and december 1982. the prevalence rates of geohelminthiasis proved to be extremely high (average 97%) in the three villages and more than 70% harboured three or more helminths, especially ascaris lumbricoides, trichuris trichiura and hookworm. necator americanus and ancylostoma duodenale were detected in 61.1% and 52.2% of 835 fecal specimens, respe ... | 1985 | 4095609 |
| human intestinal parasitism in three areas of indonesia: a survey. | stools from 1387 people were examined quantitatively for eggs of nematode parasites. the people were residents of padangganting, near sawahlunto, sumatra (227 people), sukamaju and cibungur rubber plantations near sukabumi, java (831 people) and the villages of mahima and rabo near reo, manggarai, flores (329 people). ascaris lumbricoides, trichuris trichiura and necator americanus were common; ancylostoma was not observed. prevalence of parasitism was highest in java and lowest in flores. egg c ... | 1984 | 6543421 |
| clinical trial of pyrantel embonate, levotetramisole and bephenium hydroxynaphthoate against necator americanus. | | 1974 | 4412484 |
| necator americanus infection: a longitudinal study of an urban area in nigeria. | a longitudinal study was carried out in owerri, capital of imo state, nigeria, to assess the pattern of necator americanus infection during a 27-month period. the mean annual prevalence fell from 59.0% in 1978, to 55.5% in 1979 and 51.1% in 1980. the egg count (apparent intensity of infection) fell in a similar pattern. maximum and minimum conversion rates were 55.2 and 13.7%, respectively, and conversion rates fell by approximately 20% between 1979 and 1980. the highest reversion rate was 55.0% ... | 1983 | 6625730 |
| scanning electron microscopy of hookworms. 1. adults and infective-stage larvae of necator americanus (stiles, 1902). | | 1974 | 4458073 |
| distribution of necator americanus and ancylostoma duodenale in liberia. | in the first country-wide survey of hookworm infection in liberia, diagnosis by test-tube filter-paper cultivation revealed a prevalence of more than 90%. this sensitive technique also permitted differential species determination. necator americanus was found to occur in all regions and in a high proportion of the persons examined. ancylostoma duodenale was mainly confined to a narrow coastal belt, and usually parasitized individuals harbouring n. americanus as well. the average number of eggs p ... | 1972 | 4539819 |
| effect of cortisone upon serial passage with the human hookworm, necator americanus in golden hamsters, mesocricetus auratus. | | 1973 | 4752379 |
| pyrantel pamoate (combantrin) in treatment of ancylostomiasis (necator americanus). | | 1973 | 4805676 |
| the anterior glands of adult necator americanus (nematoda: strongyloidea). i. ultrastructural studies. | | 1974 | 4813201 |
| the anterior glands of adult necator americanus (nematoda: strongyloidea). ii. cytochemical and functional studies. | | 1974 | 4855900 |
| necator americanus infection in primates. | | 1971 | 4994803 |
| partial development of human hookworm, necator americanus in albino mice (mus musculus). | | 1972 | 5048866 |
| studies on the relative prevalence of ancylostoma duodenale and necator americanus in taiwan with reference to employment of test-tube filter-paper cultivation method. | | 1965 | 5217006 |
| effect of ingested garlic on necator americanus and ancylostoma caninum. | | 1969 | 5389769 |
| ancylostoma duodenale and necator americanus in the abay (blue nile) gorge. | | 1985 | 4006926 |
| study of the efficacy of compound go.9333 (ciba-geigy) in hookworm infestation. | 50 cases with hookworm infestation were studied to find out the species of the parasite, 25 of them were included for a double-blind trial of compound go.9333 (ciba-geigy)/placebo. results of the study revealed predominance of necator americanus (96%) in and around pondicherry, south india. compound go.9333 was found to very effective in the treatment of hookworm infestation. side effects were minor and were not of much significance. the drug was well accepted and tolerated by most of the cases. ... | 1981 | 7014129 |
| sodium azide preservation of faecal specimens for kato analysis. | the modified kato technique has the advantages of reproducibility, simplicity and economy: the disadvantage is that it cannot be used in conjunction with traditional faecal preservatives. sodium azide has been evaluated as a preservative for human faeces for subsequent kato analysis. more than 400 faecal samples (from normal and malnourished children, and from mixed-age participants in a field survey of the turks and caicos islands) were each mixed with 2-5 mg of sodium azide powder and stored i ... | 1985 | 4011316 |
| [studies on the infection mode of hookworms. experiments on communication of necator americanus through oral membranes]. | | 1970 | 5530140 |
| [an epidemiological study of intestinal bilharziasis and roundworm infections in bafia (cameroon)]. | the prevalence of intestinal helminthiasis is measured by means of stool examinations. in bafia eggs are passed in the feces of 69.1% of the inhabitants for ascaris lumbricoides, 70.1 % for trichuris trichiura, 59.6 % for necator americanus and 14.8% for enterobius vermicularis. a small focus of intestinal bilharziasis exists in bafia and eggs of schistosoma mansoni are found in the feces of 18.6% of the persons studied. biomphalaria pfeifferi is the intermediate host of the parasite and transmi ... | 1982 | 7105280 |
| skin penetration by necator americanus larvae. | skin penetration by necator americanus larvae has been investigated in vitro. larvae were able to penetrate completely human skin from both the epidermal and dermal directions; their passage through the epidermis was marked by cellular destruction. removal of chloroform soluble skin lipids affected both the percentage of larvae invading and the percentage exsheathing. the larvae released an enzyme at about 37 degrees c, which showed peak activity against azocoll at 37 degrees c and ph 8. it is s ... | 1982 | 7136195 |
| [distribution of necator americanus and ancylostoma duodenale in santa cruz, bolivia]. | | 1985 | 4037896 |
| the anthelmintic effects of mebendazole on necator americanus in rabbit model. | | 1982 | 7166638 |
| incidence of ancylostoma duodenale and necator americanus in patients with hookworm disease in the agricultural areas near bombay. | | 1967 | 5596456 |
| pathogenicity of ancylostoma duodenale and necator americanus. | | 1965 | 5882627 |
| albendazole: a new single dose anthelmintic. study in 1455 patients. | albendazole has been tested in an open trial conducted in france, seven countries of west-africa, martinique and the people's republic of china in a total of 1455 patients harboring single or mixed infections caused by round-worms, pinworms, hookworms and whipworms. all patients were closely observed before and after treatment for clinical side effects and hematology and clinical chemistry values were done in about 5% of the cases. fecal samples obtained before and approximately 15, 16 and 17 da ... | 1984 | 6143488 |
| [evaluation of the main intestinal parasitosis in 860 ivory coast children from thirteen different villages (author's transl)]. | a survey has been carried out in 2 forest villages, 9 savanna villages and 2 abidjan suburb districts. a total sample of 860 children aged between 6 and 15, has been examined. data tabulation indicated a prevalence of the main intestinal nematodes, of s. mansoni and of e. histolytica, with variable respective percentage. ascaris lumbricoides affected 26 p. 100 of children but is less frequent in the savanna areas than in the forest areas. trichiuris trichiura affected 1 child out of 4 but infest ... | 1981 | 6264268 |
| necator americanus infection: a cross-sectional study of a rural community in relation to some clinical symptoms. | | 1984 | 6332584 |
| [geographic distribution of ancylostoma duodenale and necator americanus in taiwan]. | in order to determine the geographical distribution of ancylostoma duodenale and necator americanus in taiwan, 2,759 fresh stool samples were collected from 5th-grade school children of both sexes among 43 preliminary schools in 16 counties, and then examined by means of the modified test-tube filter-paper cultivation method for identification of the filariform larvae of hookworm. both species of a. duodenale and n. americanus are widespread in taiwan. the overall infection rate was 20.00%. the ... | 1984 | 6510063 |
| [comparative value of egg size and larval morphology in the diagnosis of species of ancylostomids. existence of abnormal larvae]. | the values of eggs mensuration and results of coproculture have been compared for the identification of species of ancylostomia infestations. results are confirming the necessity of coproculture for this diagnosis when the size of eggs is not inferior to 61 mu or superior to 72 mu. one case of morphological anomaly of some strongyloïd larvae of necator americanus has been related. | 1984 | 6541285 |
| [necator americanus uncinariasis in an infant born and residing in mexico city]. | a six-month-old infant is reported with the unquestionable diagnosis diagnosis of necator americanus uncinariasis. the mother was also infected with the same hookworm. the patient was born and has always dwelt in mexico city, where helminthiasis is considered extremely rare. the epidemiologic studies determined that the dwelling conditions were inadequate for the transmittal of the agent through the soil. the authors emphasize the importance of the presumptive diagnosis in those cases suggesting ... | 1981 | 7259852 |
| reinfection with intestinal helminths after treatment with mebendazole and fluctuations in individual ascaris lumbricoides infections with time. | in a group of rural school children in the highlands of papua new guinea with an initial prevalence of ascaris lumbricoides 71 per cent, trichuris trichiura 69 per cent and necator americanus (hookworm) 95 per cent, 2 1/2 months after treatment with mebendazole the prevalence of a. lumbricoides and t. trichiura was very low, that of n. americanus was about 20 per cent and all egg counts were very low. prevalence rates and egg counts of a. lumbricoides returned to pretreatment levels 9 months aft ... | 1984 | 6598553 |
| changes in lipid contents of infective third-stage larvae of necator americanus during desiccation and revival. | changes in lipid content of infective third-stage larvae of necator americanus were investigated after short periods of induced desiccation and revival. a fall in lipid reserve from an outset level of 86% to 74% was recorded in the first 2 h of desiccation. with increased desiccation, lipid reserves did not show significant decline, probably as a result of decreased lipid metabolism in the desiccated larvae. during revival, there was a drastic fall in lipid reserves as a result of increased lipi ... | 1984 | 6695536 |
| studies on the co-occurrence of two species of human hookworm in a riverine community in nigeria. | a total of 1,623 stool specimens from different individuals were examined to assess the infection prevalence and the pattern of occurrence of necator americanus and ancylostoma duodenale in a riverine community in nigeria. 56.3% of 823 males and 52.63% of 800 females were positive for both species of hookworm, 25.1% of infected males, and 26.1% of infected females had a. duodenale while 46.7% of infected males and 51.2% of infected females had n. americanus. 28.2% of males and 22.7% of females h ... | 1984 | 6710599 |
| hookworms and the species infecting man in zambia. | the rate of hookworm infections, determined by stool examination over a 7-month period, was 16.56% in medical examinees and 19.91% in in-patients in an urban hospital population in zambia. the egg-load though was low. culture of ova to the filariform larval stage, examination of adult worms expelled after anthelminthic treatment and collected at autopsy confirmed that the dominant species was necator americanus. however, we report, perhaps for the first time, the presence of ancylostoma duodenal ... | 1984 | 6716541 |
| the distribution of necator americanus and ancylostoma duodenale in school populations, gojam and gondar administrative regions. | | 1984 | 6723632 |
| larvicidal activity of albendazole against necator americanus in human volunteers. | this study evaluated the efficacy and tolerance of a single oral 400-mg dose of albendazole on necator americanus larvae, and compared its efficacy when administered between meals or with a meal. twenty-nine healthy and hookworm-free male volunteers were exposed on the forearm to approximately 45 8-day-old n. americanus larvae. all subjects developed discrete maculopapular eruptions at the site of larval application. following a random double-blind study design, each subject received at the end ... | 1984 | 6731670 |
| disc electrophoretic studies of hookworms: preliminary comparison of protein fraction in adult necator americanus, ancylostoma duodenale and ancylostoma caninum. | | 1980 | 6780275 |
| canine biliary carcinoma: epidemiological comparisons with man. | a retrospective study of abstracted data representing 1.1 million hospital examinations of dogs at veterinary university teaching facilities identified 77 with bile duct carcinoma. using the hospital population, based on patient years at risk, as the expected frequency of particular zoographic characteristics, there was a suggestion of a familial (breed) predisposition in labrador retrievers and limited evidence of a sex differential. because mongrel dogs displayed about the same frequency of bi ... | 1983 | 6841697 |
| endoscopic discovery and capture of necator americanus in the stomach. | we report a case of the endoscopic discovery and removal of a specimen of necator americanus hooked into the gastric mucosa of a black woman from zaire. we extracted the parasite by means of biopsy forceps. signs of previous bites were seen in the antrum. this exceptional localization might be due to a jejuno-duodeno-gastric reflux. | 1983 | 6851955 |
| intestinal helminths in an adult hospital population in the eastern highlands of papua new guinea: relationship with anaemia, eosinophilia and asthma. | the principal helminths present in adult medical patients at goroka base hospital were hookworm, probably necator americanus, (in 83%), ascaris lumbricoides (in 14%) and trichuris trichiura (in 16%). enterobius vermicularis was also present (in 1.6%), and hymenolepis nana in a single patient. females were infected more frequently with ascaris than males and they had higher egg counts of both ascaris and trichuris than males, and the difference was statistically significant. haemoglobin values we ... | 1980 | 6937024 |
| the relationship of hookworm infection, anaemia and iron status in a papua new guinea highland population and the response to treatment with iron and mebendazole. | in 345 apparently healthy papua new guinea male subjects, predominantly highlanders, 89% of whom were infected with hookworm (necator americanus), there was a statistically significant inverse correlation of hookworm egg count with haemoglobin and serum ferritin level, but no significant correlation with serum albumin, folate or b12 values. a sub-group of 128 was chosen for a six-month study on the effect of treatment with the anthelmintic mebendazole and/or parenteral iron on haemoglobin and se ... | 1981 | 6945770 |
| massive intestinal haemorrhage leading to exploratory laparotomy in a child with hookworm infection. | a case of necator americanus infection associated with massive intestinal hemorrhage is reported. this is believed to be the first report in thailand. | 1980 | 6968980 |
| [albendazole. evaluation of tolerance and efficacy in oxyuriasis, trichocephaliasis, ankylostomiasis, ascaridiasis, anguilluliasis]. | albendazole was given to some men for the first time. 131 patients (43 children) received different dosages, without clinical intolerance. biological parameters were normal. each study was made in two parts: - determination of the good dosage, - administration in a double-blind study (except for strongyloides stercoralis). albendazole has a good efficiency against enterobius vermicularis, trichuris trichiura, ascaris lumbricoides and necator americanus. strongyloides stercoralis seems to be kill ... | 1981 | 7028298 |
| albendazole: a new broad spectrum anthelmintic. double-blind multicenter clinical trial. | a new anthelmintic drug, albendazole, has been tested in a multicenter double-blind placebo controlled study in 392 patients from france and west africa in children and adults with single or mixed infections caused by roundworms, hookworms, whipworms, threadworms and tapeworms. all patients were closely observed before and after treatment for clinical side effects, hematological or clinical blood chemical changes. fecal samples obtained before, and 7 days and 21 days after treatment were examine ... | 1982 | 7041665 |
| changes in carbohydrate metabolism in golden hamsters infected with necator americanus. | | 1982 | 7149838 |
| the infectivity of ingested adult hookworms. | fourth-stage larvae and adults of ancylostoma ceylanicum (dog strain) produced patent infections, with fertile ova, in hamsters to which they had been given in a drench. similarly, 36-day-old (immature adult) necator americanus given in a drench to hamsters also produced patent infections with fertile ova. the epidemiological significance of these experiments is discussed. | 1981 | 7198834 |
| [epidemiological survey and sanitary problems in a village in east central madagascar]. | an evaluation of health problems is done in a village in eastern madagascar, where takes place a development programme. 217 inhabitants go through physical examination and lab tests are performed (blood smear - thick drop. emmel test. stools examination for parasites and enteroviruses). the epidemiologic investigation reveals the prevalences of malaria (39,4 p. 100) intestinal schistosomiasis (59,9 p. 100) ascaridiasis (61,3 p. 100) hookworm (29,9 p. 100) trichuriasis (19,8 p. 100) and sickle ce ... | 1981 | 7200761 |
| prevalence of intestinal helminthic infections in kao district, north halmahera, indonesia. | a parasitological survey was conducted on the inhabitants of six villages of kao district, halmahera island, north maluku, indonesia, in july 1993. a total of 422 fecal samples were examined by using kato-katz thick smear, modified harada-mori culture and formalin ether concentration techniques. seven nematode species, ie ascaris lumbricoides, trichuris trichiura, necator americanus, ancylostoma duodenale, strongyloides stercoralis, enterobius vermicularis and unidentified rhabditoids of free-li ... | 1994 | 7667724 |
| the anti-haemostatic strategies of the human hookworm necator americanus. | | 1995 | 7667839 |
| intestinal parasites of man in northern bohol, philippines, with emphasis on schistosomiasis. | a survey for intestinal parasites with emphasis on oriental schistosomiasis was conducted in the townships of trinidad and talibon, bohol province, philippines and approximately 1,700 stool samples were examined. schistosoma japonicum is still endemic to these areas of northern bohol but infection rates were much lower than expected, 5% rather than 30%. soil-transmitted helminths were the most common parasitic infections. hookworms were found in 71% of the samples tested, most infections were du ... | 1980 | 7221688 |