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barn itch.particularly in rural settings, trichophyton verrucosum commonly causes an inflammatory tinea infection, sometimes called 'barn itch." there is usually a history of contact with animals. the demonstration of clusters of large spores in a potassium hydroxide preparation of scrappings obtained from clinically involved skin is useful in making a presumptive diagnosis of t. verrucosum infection. cultures frequently are negative. oral griseofulvin shortens the course of the disease.19836823790
dermatophytic infection of the scalp in the region of butare (rwanda).we examined samples of hairs taken from 60 children presenting with the clinical picture of tinea capitis. in 53 cases, direct microscopic examination showed either ectothrix or endothrix parasitism, and we were able to grow the causative dermatophyte. we had 34 strains of trichophyton violaceum, 19 of microsporom langeroni, and two of trichophyton verrucosum. the latter is found for the first time in this region to be a cause of ringworm in humans.19836840941
trichophyton verrucosum infection of goats. 19836879971
a compilation of published reports of mycoses in animals in india.the available published reports on animal mycoses in india and the fungal agents isolated from animal material are discussed. among dermatophytes, the occurrence of trichophyton verrucosum, t. mentagrophytes, t. rubrum, t. equimum, t. violaceum, t. simii, t. tonsurans, t. terrestre, t. ajelloi, microsporum canis, m. gypseum and m. namum has been reported. cases of aspergillosis, candidiasis, phycomycosis, rhinosporidiosis, epizootic lymphangitis, mycotic abortions and mycotic mastitis have been ...19806999357
[a rapid method for the diagnosis of trichophyton verrucosum (author's transl)].200 dermatological specimens from cattle with clinical symptoms resembling ringworm have been examined using direct microscopy of lye-treated material and cultivation on glucose peptone agar with examination of the cultures for microcolonies of trichophyton verrucosum after 2-4 days incubation (fig. 1 and 2). the results (table i) show good correlation between the two examination methods. in 77 specimens arthrospores were demonstrated on direct microscopy and microcolonies of t. verrucosum on cu ...19817033926
[the problem of trichyophytosis (trichophyton verrucosum bodin, 1902) as one of anthropozoonosis in the svidník district]. 19827116475
the fate of trichophyton verrucosum in the guinea-pig organism conditioned by the route of its administration. 19827177160
[comparative study of trichophyton mentagrophytes and trichophyton verrucosum].two species of the genus trichophyton are described t. mentagrophytes and t. verrucosum, etiological agents of ringworm in rabbits. they are distinguished by their macroscopic and microscopic features, their ability to produce enzymes and their ability to utilize and ferment carbohydrates.19817221802
dermatophytic flora of ankara (turkey).during the period july 1, 1976, to december 31, 1978, 1,227 dermatophytes were isolated from 2,702 specimens taken from suspected cases of dermatophytosis. the dermatophytic flora was found to consist mainly of anthropophilic species. trichophyton rubrum was by far the most frequently isolated species. tinea capitis was caused in 36.1% of all cases by trichophyton verrucosum, in 13.9% by microsporum canis and trichophyton violaceum, in 11.1% by trichophyton schoenleinii and trichophyton granulos ...19817262383
[activity of repeated administration of enilconazole (r 23 979) against trichophyton verrucosum in cattle. a clinical trial (author's transl)].234 animals from twenty-eight different herds showed typical dermatophytic lesions which, after direct examination and culture, were found to be caused by t. verrucosum. the animals were subdivided into two groups of 165 (a) and sixty-nine (b) animals. these were treated with enilconazole (r 23 979) base, 10 per cent e.c., diluted in 50 parts of water to produce a 2,000 ppm spray. the dose administered varied from 0.5 litre in calves to 1 litre in adult cattle. group a was treated four times wit ...19817281154
ringworm caused by trichophyton verrucosum in young goats: a case report. 19817296024
[pathogenicity, immunogenic properties and antigenic structure of domestic strains of trichophyton verrucosum].the studies involved 37 domestic strains of the trichophyton verrucosum species, which plays a dominating role in the etiology of skin mycosis in cattle. the pathogenesis of these strains was determined in guinea-pigs and calves, as well as their immunogenicity and antigenic structure. differences in pathogenic properties of the individual strains were found both for guinea-pigs and calves. by the method of successive reinfections it was shown that trichophytosis cannot be evoked in guinea-pigs ...19817301628
observations on ringworm in goats caused by trichophyton verrucosum. 19807397477
[effect of the season on sporogenesis in trichophyton verrucosum, bodin, 1902]. 19807424150
[a medium for rapid isolation of the dermatophyte trichophyton verrucosum (omita-agar) (author's transl)]. 19807453721
the distribution of ringworm lesions in cattle naturally infected by trichophyton verrucosum.eighty-seven friesian black pied, males and females of various ages, were examined in the course of an outbreak of t. verrucosum. the site of ringworm lesions is dependent on the sex and age of animal. sex is the key-factor for animals older than 12 months. characteristic locations for lesions are: thorax and limbs for cows and heifers, ocular regions for young calves, dewlap and intermaxillary space for bulls. it seems that the differences observed in the frequency of the localisations of lesio ...19807458242
the occurrence of dermatophytes in slovakia.we have compared the epidemiology of dermatophytoses in slovakia during the periods 1956-85 and 1986-92. infections caused by trichophyton rubrum gradually increased while infections due to trichophyton verrucosum and microsporum canis decreased.19957477094
studies on growth, spore-forming ability and virulence of the vaccine strain tv-m-310 of the vaccine bioveta against ringworm.we determined the intensity of growth, the ability to form spores and virulence in guinea pigs of the vaccine strain of the czech live vaccine bioveta. comparative investigations were carried out with the vaccine strain of the russian live vaccine ltf 130 and trichophyton verrucosum field strains. growth of the vaccine strains was faster than growth of the field strains on solid media and in broth. later the vaccine strains formed many microconidia. in experimentally infected guinea pigs the vir ...19947746299
immunogenicity in calves of a crude ribosomal fraction of trichophyton verrucosum: a field trial.this paper describes a field trial involving 13 calves raised on a farm known to be endemic for trichophyton verrucosum infection. seven calves were immunized by subcutaneous inoculations with a crude ribosomal fraction (crf) of t. verrucosum suspended in aluminium hydroxide as adjuvant. six animals were sham-immunized with buffer suspended in the adjuvant and served as controls. two injections were given: one at the age of 2 weeks and a second 2 weeks later. crf was prepared from t. verrucosum ...19957762284
immunoprophylaxis of bovine dermatophytosis.the literature on immunoprophylaxis as control method for ringworm in cattle is reviewed. scientific papers on immune response to dermatophyte antigens and vaccination against ringworm were obtained from personal files and computerized search in 4 relevant databases. vaccines with antigens of trichophyton verrucosum stimulate a humoral and cellular immune response. in animals vaccinated with inactivated vaccines, some protection is observed after challenge. however, the protective immunity is in ...19957773918
successful treatment with fluconazole of tinea corporis caused by trichophyton verrucosum (barn ich).a student in a veterinary program noted an inflammatory tinea corporis on the right forearm after working with cows. culture grew trichophyton verrucosum. a nine-day course of treatment with oral fluconazole, 100 mg daily, resulted in prompt resolution. awareness of the clinical presentations of barn itch, and familiarity with wet mount and histopathologic features, and special growth requirements of t. verrucosum will facilitate prompt diagnosis and treatment. therapy with newer antifungal agen ...19947813246
polymerase chain reaction-based detection of dermatophyte dna with a fungus-specific primer system.there is significant clinical interest in primers which are specific for fungi and do not hybridize to dna of other eukaryotes or prokaryotes. such primers would allow specific amplification of fungal dna from human tissue samples containing fungi. fungal identification to the species level could follow by direct sequencing or restriction analysis. several previously described primer systems cross-react with dna of plants and animals. we have designed a primer system that amplifies a fragment of ...19947845424
first isolation of trichophyton verrucosum as the aetiology of ringworm in the sudanese camels (camelus dromedarius).a survey was conducted to study camel ringworm in eastern sudan. ringworm was diagnosed in 217 out of 498 young camel calves under two years old examined during a whole year (43.5%). the peak incidence of the disease was found to be in autumn and winter. the disease was observed more frequently among young growing calves (1-2 years) than older animals but the prevalence among male and female animals was found to be similar. lesions were observed mainly on the head, neck and shoulder with frequen ...19947863069
dermatophytoses in iran.a total of 12,150 cases of suspected dermatophytoses in different areas of iran were studied between 1986 and 1991. the age groups most commonly infected were 1-9 and 20-29 years. clinical diagnosis was confirmed in only 9345 cases by laboratory examination. of these positive samples, 1633 cases were found to be positive by direct microscopic observation only, 429 by culture only and 7283 by both techniques. scalp ringworm of children was the most common type of tinea. but according to the rate ...19947935592
tinea corporis due to trichophyton verrucosum in recessive, x-linked ichthyosis.an 18-year-old male agricultural worker with recessive x-linked ichthyosis was found to have ringworm infection with trichophyton verrucosum, which resulted in well-demarcated clearing of the ichthyotic scaling in affected areas. however, rapid recurrence of the abnormal cornification was observed after treatment of the fungal infection. some possible mechanisms regarding the effect of fungi on hyperkeratinization are discussed.19938015564
tinea corporis due to trichophyton verrucosum: report of a patient from the san'in district.a 70-year-old japanese housewife, a resident of shimane prefecture, developed an erythematous, annular skin lesion on her right forearm. mycological examinations revealed that it was tinea corporis caused by trichophyton verrucosum (t. verrucosum). this fungus was then shown to have been transmitted to her from young dairy cattle introduced from the hokkaido district to the ranch of her son. to the best of our knowledge, she is the first reported patient with tinea due to t. verrucosum who was i ...19948051322
immunogenicity in guinea-pigs of a crude ribosomal fraction from microsporum canis.the immunogenicity of a crude ribosomal fraction (crf) extracted from microsporum canis was tested by assessing protection of vaccinated guinea-pigs (gp) against a challenge with the dermatophyte. stimulation of the humoral as well as the cellular immune systems of these animals was evaluated by elisa and the lymphocyte stimulation tests, respectively. in addition, the immune response elicited by the m. canis crf was examined for cross-reactivity towards trichophyton verrucosum antigen. the dura ...19948147094
diaper dermatitis due to trichophyton verrucosum. 19938302743
isolation of trichophyton verrucosum from lesional and non-lesional skin in calves.trichophyton verrucosum, a causative agent of bovine dermatophytosis in japan is considered to transfer easily from infected cattle to other healthy ones. no studies have ever tried to elucidate the distribution of t. verrucosum in breeding environment. in this study, we investigated the distribution of t. verrucosum in infected young calf skin and healthy skin. hairs or scale samples were collected from 29 lesional skin, and 46 non-lesional skin of the 19 and 34 infected calves, respectively, b ...19938513021
[zoonotic dermatomycoses in urban populations].the authors analyzed epidemiologically two cases of trichophytosis caused by zoophilic dermatophytes in persons living in the city. the first case was a male aged 43, suffering from trichophytosis on the right side of his neck. the patient was infected at work from guinea pigs. trichophyton mentagrophytes varietas granulosum was the etiological agent. the second case occurred in a female aged 29, suffering from trichophytosis on her left arm. trichophyton verrucosum was the causal agent. a horse ...19958556247
production and use of monoclonal antibodies to microsporum canis.microsporum canis ncpf 179 and m. canis ncpf 177 dermatophyte cytoplasmic extracts (dces) were used as antigens to generate monoclonal antibodies (mabs). hybridomas with supernatants of optical density (od) > 1 for homologous dermatophyte cytoplasmic extracts (ce) and od < 0.5 for heterologous ce of candida albicans tested by the enzyme-linked immunosorbent assays (elisa) were selected for cloning. mabs secreted by cloned hybridoma lines were screened against ce of m. canis, m. gypseum, m. equin ...19958560740
epidemiology of dermatophytoses observed in rome, italy, between 1985 and 1993.between 1985 and 1993, 13,880 patients were studied for possible forms of dermatophytoses. the most frequently isolated dermatophyte was in 2821 positive cases microsporum canis (50%), followed by trichophyton rubrum (27%), trichophyton mentagrophytes (10.6%), epidermophyton floccosum (9.3%), microsporum gypseum (2.3%), trichophyton violaceum (0.6%), trichophyton tonsurans (0.2%) and trichophyton verrucosum (< 0.1%). the genera and species isolated were also considered in relation to the site of ...19958569819
[kerion celsi. a diagnostic problem? experience with 6 cases].we report six patients with kerion celsi due to trichophyton verrucosum. five of the patients were hospitalized with the diagnosis of staphylococcal abscess. this confusion is due to that highly suppurative and inflammatory nature of the infection. griseofulvin is the antimicrobial of choice for treatment, associated with imidazolics and corticosteroids to prevent alopecia. the authors suggest that an adequate use of simple microbiological diagnostic tests in the diagnosis of pyodermitis in rura ...19958657953
a study of dermatophytoses in hamadan, the governmentship of west iran.in order to determine the extent and causative agents of dermatophytoses in the hamadan region of west iran; a study was made during a 9-month period from october 1991 to june 1992. a total of 7495 individuals were studied of whom 681 (9%) were suspect of having cutaneous mycoses. among them dermatophytoses were the commonest infections (259/681 = 38%). of 259 individuals infected with dermatophytes, tinea capitis were observed in 163 (62.9%); t. corporis in 27 (10.4%); t. manuum and t. cruris i ...19968751822
an evaluation of the resistance to microsporum canis on the basis of the guinea pig.the purpose of the work was to assess the immune response of guinea pigs after the experimental infection with microsporum canis, and after immunization with a specific live vaccine. the guinea pigs after the recovery from infection showed a delayed type of hypersensitivity and in addition, 30 per cent of the animals were characterized by the presence of immediate hypersensitivity reactions. all the animals were resistant to reinfection with m. canis and to some extent to trichophyton verrucosum ...19948891170
efficacy of a live attenuated trichophyton verrucosum vaccine for control of bovine dermatophytosis. 19968913013
severe tinea barbae due to trichophyton verrucosum infection in dairy farmers.trichophyton verrucosum infection, which is acquired from the hide of dairy cattle, is the cause of tinea barbae, a severe pustular eruption on the face and neck. we present the cases of five patients, three of whom had severe pustular tinea barbae and two of whom had eruptions of the forearms. all five patients were dairy farmers. on physical examination, all five patients were afebrile and did not appear toxic. peripheral leukocyte counts of the three patients with pustular tinea barbae were n ...19968953077
detrimental effect of bovine leukemia virus (blv) on the immunological state of cattle.bovine leukemia virus (blv) is a retrovirus which seems to affect both the humoral and the cellular immune response. cows affected by enzootic bovine leukemia (ebl) showed a reduction of igm-producing cells in the spleen and lymph nodes. experimentally infected calves had lower levels of secretory igm and a decrease in t lymphocytes in the peripheral blood. the reduction in the amount of t cells was noticed mainly in cells bearing the cd4 markers. blv-infected animals showed diminished responsiv ...19968988875
tinea capitis in adults.between 1973 and 1994, 17 cases of tinea capitis in adults were observed in the dermatology clinic of the university of cagliari (italy). the patients were all women (age range 17-76 years) and came from the district of cagliari. at the time of referral, they presented with a disease duration varying from 8 to 10 months. the main clinical feature was scalp lesions, but in two cases mycotic lesions on the face were also present. the following dermatophytes were isolated: microsporum canis (eight ...19969009649
dermatophytoses in the gdańsk area, poland: a 12-year survey.a survey of dermatophytes and dermatophytoses was carried out among patients of the department of dermatology, medical university of gdańsk, in the years 1984-95. over the 12-year period, 1195 cases of ringworm were seen: 55% in men and 45% in women. listing the dermatophytes isolated and their frequencies as a percentage of the total are as follows: trichophyton mentagrophytes 42.1%, microsporum canis 26.0%, trichophyton rubrum 14.7%, epidermophyton floccosum 11.0%, trichophyton tonsurans 4.6%, ...19969009667
tinea axillaris, a variant of intertriginous tinea, due to non-occupational infection with trichophyton verrucosum.the term tinea axillaris has been used only a few times in the literature. in this paper we describe a male patient with widespread tinea corporis and unguium affecting also both axillary regions. trichophyton verrucosum was isolated as the causative agent. the patient admitted to no direct contact with infected animals, but had lived in a rural area until a year before the infection became widespread. topical treatment with glucocorticosteroids probably promoted propagation over large parts of ...19969145007
[the pig as dead-end host of trichophyton verrucosum? a case report].a dermatomycosis of swine caused by trichophyton verrucosum is reported. trichophyton verrucosum could be identified in skin scrapings of pigs and contacting calves by fluorescence microscopy and culture. the mode of transmission and the rare isolation of trichophyton verrucosum from pigs are discussed.19979312895
a new medium for the presumptive identification of dermatophytes.a new medium, dermatophyte identification medium (dim) (trade mark pending), was specifically developed to eliminate problems of false-positive results associated with commercially marketed media, such as dermatophyte test medium (dtm). previous investigations had demonstrated that dtm only partially suppressed growth of nondermatophytes and that several of these nondermatophytic fungi that were morphologically similar to dermatophytes caused false-positive results. presumptive identification of ...19979316928
dermatophytes isolated from domestic animals in barcelona, spain.this retrospective study deals with the main samples studied at the mycology diagnostic service of the faculty of veterinary science of barcelona: animals with suspected dermatophytosis. over a ten-year period from 1986 to 1995, 136 dermatophytes were identified from dog and cat cultures submitted for identification and from specimens submitted for mycological examination from a variety of other domestic animals. the most frequent dermatophytes isolated were microsporum canis (55.9%), trichophyt ...19979335154
photo quiz. tinea barbae caused by trichophyton verrucosum. 19979410095
inflammatory tinea corporis due to trichophyton verrucosum. 19989455559
prevalence and aetiology of dermatophytoses in isfahan, iran.in this study the prevalence and causative agents of dermatophytoses in isfahan, a large province of iran, were determined. of 16,578 clinically suspected cases 13.3% were affected with dermatophytoses. lesions of tinea capitis were the most prevalent clinical type of dermatophytoses (54.1%), followed by tinea corporis (23.8%) and tinea pedis (8.9%). trichophyton verrucosum was the most frequent causative agent (32.8%), followed by epidermophyton floccosum (17.6%), t. mentagrophytes (16.2%) and ...19979476518
griseofulvin and terbinafine in the treatment of tinea capitis in children.to compare the effectiveness of griseofulvin and terbinafine in the treatment of tinea capitis in children.19989539918
[dermatophytes isolated in our clinics. 5-year-study in zaragoza].this review summarizes the different species of dermatophytes isolates in our laboratory between 1991 and 1995. we describe the clinical forms and establish the distribution over this period of time.19979580210
protective efficacy of vaccines against bovine dermatophytosis after double and single vaccination.the protective efficacy of two czech vaccines against bovine trichophyton verrucosum infection after double vaccination of calves in prophylactic doses, with an interval of 13 days between vaccination and revaccination, was very good. when these preparations were applied in a double dose only once, less protective effect was produced. the use of 0.5% aluminium hydroxide to dilute the vaccines had no influence on the effect of single vaccination.19989610141
epidemiological aspects of dermatophyte infections in horses and cattle.ringworm infections in the principal domestic animals are a major public and veterinary health problem. the aetiology, epidemiology and symptomatology of these mycoses are quite heterogeneous and complex. in this context, the aa carried out an epidemiological study to investigate the prevalence of dermatophytes in two different animal species, horses (n = 200) belonging to 10 private stables and cattle (n = 1900) belonging to farms with different breeding purposes and management. with regard to ...19989640100
[zoophilic dermatophytes as epizoonoses pathogens and their significance to dermatology].different dermatophytes occurring primarily in animals may be transmissible to man and produce human disease; such zoophilic fungi should be considered a possible cause of skin lesions of unclear origin. several species including trichophyton verrucosum, trichophyton mentagrophytes and microsporum canis may infect human skin, causing a variety of signs and symptoms. people who have close contact to infested cattle or cats are more often exposed to fungal infections. certain professions, such as ...19989675572
[dermatomycosis caused by trichophyton verrucosum in mother and child].in recent years, there has been an epidemiological renaissance of zoophilic dermatophytoses caused by a variety of factors. at present, the most important causative organisms are microsporum canis, trichophyton mentagrophytes var. granulosum and, as in the present case, trichophyton verrucosum. these are formerly notifiable pathogens which are highly virulent and contagious. the example of an extensive, originally unrecognized tinea corporis et faciei in mother and child presented here shows the ...19989715387
picture of the month. trichophyton verrucosum tinea corporis. 19999988253
development of vaccines and their use in the prevention of fungal infections.vaccine approaches to infectious diseases are widely applied and appreciated. disciplines such as bacteriology and virology have a rich history of successful vaccine development. the complexity of eukaryotic systems presents additional challenges to the development of vaccines against them. these challenges are being met in the fields of parasitology, and are being revisited for application in oncology. vaccine opportunities exist in medical mycology. the national institute of allergy and infect ...19989988493
phylogenetic classification and species identification of dermatophyte strains based on dna sequences of nuclear ribosomal internal transcribed spacer 1 regions.the mutual phylogenetic relationships of dermatophytes of the genera trichophyton, microsporum, and epidermophyton were demonstrated by using internal transcribed spacer 1 (its1) region ribosomal dna sequences. trichophyton spp. and microsporum spp. form a cluster in the phylogenetic tree with epidermophyton floccosum as an outgroup, and within this cluster, all trichophyton spp. except trichophyton terrestre form a nested cluster (100% bootstrap support). members of dermatophytes in the cluster ...199910074502
[variability of trichophyton cerrucosum isolates from vaccinated herds with cattle ringworm].twenty-seven strains of trichophyton verrucosum from 14 cattle herds in the federal states of thuringia and mecklenburg-vorpommern were examined by culture morphological and molecular biological (pcr fingerprinting, aflp analysis sequencing of its region) methods. six reference strains of the same species, among them the so-called album and ochraceum varieties, were also included. despite great variability in terms of culture morphology, which suggested their possible classification into 4 diffe ...199810085689
occurrence of dermatomycosis (ringworm) due to trichophyton verrucosum in dairy calves and its spread to animal attendants.persistent dermatomycosis (ringworm) caused by trichophyton verrucosum affected 20 dairy calves aged between 3 months and 1 year and housed together. the infection also spread to 2 animal attendants working among the calves. the major clinical lesions observed on the affected calves were extensive alopecia and/or circumscribed thick hairless skin patches affecting the head, neck, flanks and limbs. the observed lesions persisted for more than 17 weeks and most of the calves did not respond to top ...199810192093
tinea capitis in basrah, iraq.tinea capitis is the most common type of dermatophytosis constituting 35.2% (173/491) of all cases of dermatophytosis seen at two out-patients dermatological clinics of the basrah general hospital and at two private dermatological clinics between october 1994 and december 1995. males were more commonly affected than females represented by 60 and 40%, respectively. out of 173 mycologically positive cases, 143 specimens were culture-positive, represented by five dermatophyte species; trichophyton ...199910424105
epidemiology of dermatomycoses of humans in central poland. part v. tinea corporis.the total number of dermatophytoses (7393) included 2204 (29.8%) cases of tinea glabrosa. etiological factors in descending order were: microsporum canis (23.5%), trichophyton mentagrophytes var. granulosum (21.6%), trichophyton rubrum (17.8%), trichophyton tonsurans (10.4%), epidermophyton floccosum (7.7%), t. mentagrophytes var. quinckeanum (6.0%), microsporum gypseum (5.3%), trichophyton violaceum (3.7%), t. mentagrophytes var. interdigitale (2.3%), microsporum equinum (0.7%), trichophyton ve ...199910680444
diversity among wild type and vaccination strains of trichophyton verrucosum investigated using random amplified polymorphic dna analysis.we initially tested 20 primers for their ability to amplify genomic dna of trichophyton verrucosum using rapd. six of these were selected for further study aimed at discrimination of wild type and vaccination strains of t. verrucosum. the results indicate that rapd successfully distinguished all strains included in the study. in addition, results of corrected cluster analysis were consistent with the fact that the avirulent vaccination strains (t. verrucosum tv-m9 and t. verrucosum tv-m-130) wer ...199910732729
human cases of cattle ringworm due to trichophyton verrucosum in victoria, australia.between 1962 and 1994, 32 isolates of trichophyton verrucosum from cases of tinea corporis, tinea faciei and tinea capitis were referred to the mycology reference laboratory of the microbiological diagnostic unit at the university of melbourne, victoria, australia. patients had presented at clinics in metropolitan melbourne and country towns in the state of victoria, australia. they included dairy and cattle farmers, a slaughterman who worked in an abattoir, a veterinary tutor and children who l ...200010812701
[microsporum canis mycetoma of the scalp].mycetoma is a chronic subcutaneous tumefaction with presence of grains or granules. etiological agents include bacteria or filamentous fungi. mycetoma due to dermatophytes is uncommon, mainly occurring in africa. to our knowledge, no case has been reported in the west indies. only two observations of micosporum canis mycetoma in humans have been reported in the literature. we report a third case of mycetoma of the scalp caused by this fungus.200011011164
from animal to man: tinea barbae.dermatophytic fungi cause human infection worldwide. one clinical syndrome--tinea barbae, which closely resembles tinea capitis--is a trichophytosis involving the beard and mustache areas of the face. the fungal agents responsible for tinea barbae (trichophyton verrucosum and trichophyton mentagrophytes) are contracted through occupational exposure to animals infected with zoophilic dermatophytes. tinea barbae may be confused with other facial infections, especially those caused by staphylococcu ...200011095889
[epidemiology, clinic and treatment of dermatomycoses caused by zoophilic dermatophytes] .in the last 50 years the spectrum of agents of dermatophytoses changed. the change is remarkable especially in the case of zoophilic dermatophytes. microsporum canis has displaced trichophyton verrucosum. in the period from 1966 to 1970 2822 dermatophytoses were registered as occupational dermatoses in the former german democratic republic. in the following years the number of these diseases was continuously reduced, between 1981 and 1985 down to 995 cases. this reduction is predominantly the re ...200011098618
[incidence and control of cattle ringworm in scandinavia].clinical aspects, prophylactic as well as therapeutical vaccination with a live attenuated vaccine against trichophyton verrucosum are dealt with in this article. further, the epidemical and zoonotical view of the disease is described. the farmers' motives to vaccinate differ depending on type of herd. hygienic and disinfectant measures in connection with the start of a vaccination program are emphasized. in sweden, vaccination against ringworm is included in the "faultless hide" scheme as one a ...200011098619
[mycozoonoses with special regard to ringworm of cattle].ringworm of cattle is nearly exclusively caused by trichophyton verrucosum. this skin disease is worldwide present in cattle and is responsible for high economic losses in cattle farming. t. verrucosum may also be responsible for severe skin diseases in man. for economic and epidemiological causes a control of ringworm in cattle is still necessary. preventive measures consist in hygiene and vaccination of cattle with live vaccines against ringworm in cattle.200011098622
zoophilic and geophilic dermatophytoses among farmers and non-farmers in eastern poland.the study was aimed at assessing the frequency of zoophilic and geophilic fungal infections among farmers compared to non-farmers in eastern poland. the study was carried out on adult patients with a suspicion of fungal infection of skin or its appendages. skin scrapings or nail fragments were cultured on sabouraud agar with chloramphenicol and cycloheximide for at least 3 weeks, and then identified based on macroscopic and microscopic morphology. in total, 116 subjects were included into the fa ...200011153042
in vitro release of interferon-gamma by trichophytin-stimulated whole blood cell cultures from ringworm-vaccinated and control calves experimentally inoculated with trichophyton verrucosum.of a group of seven calves, four were vaccinated against bovine ringworm with the vaccine ringvac bovis ltf-130 (alpharma, oslo, norway), while three calves were left unvaccinated. all calves were inoculated epicutaneously with a virulent strain of trichophyton verrucosum. clinical signs were recorded. in response to stimulation with trichophytin, in vitro interferon-gamma (ifn-gamma) production in whole blood cell cultures was assessed in samples obtained pre- and post-vaccination and pre- and ...200111360340
tinea capitis in iraq: laboratory results.a school survey of 4461 primary-school children was carried out in which 204 cases of tinea capitis were clinically diagnosed. all cases were cultured and examined microscopically in order to compare the validity of the two methods. microscopy detected 92 positive cases (45.1%), whereas culture detected 105 cases (51.4%). we also isolated and identified the species causing tinea capitis in our sample. these included trichophyton verrucosum (38 cases), t. rubrum (22 cases), t. mentagrophytes var. ...200011370326
the aetiological agents of tinea capitis in zaragoza (spain).between 1977 and 1997, 190 cases of tinea capitis were observed. the age groups most commonly infected were 1-10 years old. the following dermatophytes were isolated: microsporum canis (119), trichophyton mentagrophytes (57), trichophyton tonsurans (seven), trichophyton verrucosum (three), trichophyton violaceum (one), trichophyton schoenleinii (one), trichophyton soudanense (one) and microsporum audouinii (one).200111398641
case reports. six cases of infection due to trichophyton verrucosum.dermatophyte infections due to trichopkyton verrucosum are not frequent in europe. six cases observed in italy in the period 1995-99 are reported. two were cases of tinea barbae, two of tinea corporis and two of tinea capitis, one of which had been preceded by tinea faciei. in three cases the source of contagion was horses, in two it was cattle and in one case it was another person. the two cases of tinea barbae were initially interpreted and treated as bacterial infections, a diagnostic error r ...200111714072
dermatophytoses in prague, czech republic, between 1987 and 1998.over a 12-year period, from 1987 to 1998, the spectrum of aetiological agents isolated from 11208 patients (6265 females and 4943 males) suspected of having dermatomycosis was analysed in the mycological laboratory of the department of dermatology, charles university, prague. the most frequently examined locations were toenails (34.9%), feet (15.6%), fingernails (12.8%), toe webs (11%), trunk (10%) and hands (8.7%). dermatophytes were isolated from 5605 (30.2%) of all 18528 samples examined. amo ...200111820263
tinea barbae due to trichophyton verrucosum.a 25 year-old male, a dairy farmer, had noticed an annular scaly erythema on the left cheek since 3 weeks, and visited a dermatological clinic for the eruption. diagnosis of tinea faciei was made and he was treated with oral anti-histamine medicine and by topical application of anti-fungal ointment. however, the eruption worsened and enlarged so that he visited the department of dermatology of kumiai hospital on october 19, 1997. he was in good general health. physical examination disclosed papu ...200211978571
[the influence of urea, ammonia and nitrate as they affect growth and viability of trichophyton verrucosum].six strains of trichophyton verrucosum were used in a test to determine effects of urea and sodium nitrate on their growth. despite having urease activity, the strains failed to utilize the urea and sodium nitrate for their growth. moreover, the organisms were killed if large amounts of these nitrogen compounds and ammonia were added to the medium. these nitrogen compounds, distributed in cattle breeding soil, inhibited the growth of t. verrucosum. thus, soil in cattle breeding environments does ...200212040368
two arthroderma benhamiae isolates showing mitochondrial dna type of trichophyton verrucosum.two trichophyton mentagrophytes isolates from skin lesions on a girl and her rabbit, which were identified as arthroderma benhamiae by mating tests, were studied by mtdna (mitochondrial dna) analysis and sequencing of its (internal transcribed spacer) regions of nuclear ribosomal rna genes. the mtdna-rflp (restriction fragment length polymorphism) patterns showed the two isolates to be t. verrucosum rather than a. benhamiae. the its sequence showed the isolates to be closer to a. benhamiae ameri ...200212040369
ringworm caused by trichophyton verrucosum--an emerging problem in sheep flocks. 200212092624
tinea capitis in van, turkey.forty patients with an average age of 6.5 +/- 3.2 years (28 male 12 female) who applied to the yyu medical faculty dermatology department outpatient clinic were investigated. tinea capitis profunda was determined as the most frequent clinical type. the isolated dermatophytic flora of the patients consisted of trichophyton verrucosum (43%), t. violaceum (30%), t. rubrum (23%) and t. mentagrophytes (3%). the patients with tinea capitis profunda were mostly from rural areas.200212472727
dermatomycoses in the rijeka area, croatia, before, during and after the war 1990-1999.the frequency of dermatomycoses as well as the spectrum of causative agents in the rijeka area, northwestern part of croatia, in the periods before and during the war (1990-1994) and in the postwar period (1995-1999) were analyzed. a total of 20 463 patients with clinically suspected dermatomycoses referred to the department of dermatovenerology, clinical hospital center rijeka, was examined. in the period from 1990 till 1994, 2462 samples were positive, compared with 2250 positive samples durin ...200312801365
prevalence of tinea capitis in primary schools in turkey.the aim of our study was to determine the prevalence of tinea capitis in middle anatolia. between february 2000 and april 2000, a school survey of 4760 primary school children was carried out and 34 cases of tinea capitis were clinically diagnosed. sixteen (0.3%) of them were diagnosed both clinically and using culture. eighteen cases (52.9%) were diagnosed microscopically whereas the remaining 16 cases (47.0%) had a clinical diagnose. we also isolated and identified the following species of fun ...200312801366
dermatophytes isolated from domestic animals in iran.between 1994 and 1998, a total of 790 feather, hair and skin specimens from a variety of animals with suspected dermatophytoses were studied, of which 248 (31.4%) yielded dermatophytes. the most frequent dermatophytes isolated were microsporum canis (38.3%), trichophyton verrucosum (31.8%), t. mentagrophytes (13.3%) and m. gypseum (7.7%). there was a significantly higher proportion of positive cultures from cats (54.8%) than dogs (8.2%), and m. canis was the most common species isolated (87.2 an ...200312801367
[prevalence of zoophilic dermatophytes in the sarajevo region].zoophlic dermatophytes are common cause of tinea infections in europe, especially in mediterranean area. the aim of our study was to determine the prevalence of zoophilic dermatophytes in sarajevo area, during a five-year period (1998-2002). samples (skin scrapings or nail fragments) were taken from 2,142 patients who presented with suspected dermatophytoses and cultured on sabouraud agar. after three weeks of incubations 465 (21.7%) dermatophytes were identified based on macroscopic and microsc ...200312822383
study of solar photosensitization processes on dermatophytic fungi.the antifungal activity of solar simulator was evaluated in presence of haematoporphyrin derivative (hpd), methylene blue (mb) and toluidine blue o (tbo) as photosensitizers. seven dermatophytes were used as test fungi. the solar simulator at fluence rate 400 w/m2 for 30 minutes induced marked inhibition for spore germination of the photosensitized fungi. the rate of inhibition varied according to the fungal species and concentration of the photosensitizer. there was an increase in percentage in ...200312916729
[non-suppurative epidermomycosis caused by trichophyton verrucosum discoides sab]. 195513327693
ringworm in southwestern ontario caused by trichophyton verrucosum. 195813489624
[double infection by trichophyton rubrum and trichophyton verrucosum]. 195813548702
[generalized trichophytosis with dermohypodermal & lymphnodal localizations due to trichophyton of faviform culture (trichophyton verrucosum)]. 195913656614
an epidemic of human ringworm due to trichophyton verrucosum. 195913674531
[trichophyton verrucosum, bodin 1902, isolated from calves in venezuela]. 195913814932
cattie ringworm caused by trichophyton verrucosum as a source of tinea capitis in children. 195913819849
epidemics of tinea capitis due to trichophyton verrucosum contracted from cattle or sheep. 196013821043
[on the differential diagnosis of trichophyton verrucosum from achorion schoenleinii in a case of favus capits]. 196213896345
[apropos of a case of chronic trichophytosis of the scalp, of pseudo-pelada type, due to trichophyton verrucosum]. 196214012314
[allergic phenomena in the course of dermatomycoses].fungi, well known as infectious factors so far, are important allergens too. a fungal id reaction is defined as a distant skin manifestation of an established fungal infection. the most typical setting is in association with tinea of the feet. the main id reactions are well established. a widespread lichen trichophyticus--eruption of small follicular papules grouped or diffuse. the eruption is symmetrical, usually pronounced on the trunk but in severe cases extending down to the lower limbs, eve ...200314524264
[current types of human dermatophytoses transmitted from animals].microsporum canis, trichophyton verrucosum and t. mentagrophytes are the most common dermatophytes isolated from human and animals. m. canis infection in human is closely related to companion animals such as cats and dogs. according to a recent epidemiological survey in japan, human m. canis infection is decreasing. t. verrucosum is usually transmitted from cows to human. t. verrucosum infection in human is not restricted to daily farming prefectures, however, suggesting that this species has al ...200314615787
tinea capitis among children and adolescents in the farwaniya region of kuwait.analysis of 325 patients (182 males, 143 females) of mycologically proven tinea capitis (tc) seen over a period of two years from january 2001--december 2002 in the farwaniya region of kuwait is presented in this study. the age range was 8 months to 17 years. peak incidence was observed in the 3-14 year age group (79.6%). positive family history and contact with pets were noted in 22% and 36.7% of the cases, respectively. the non-inflammatory 'gray patch' variety was the most common clinical typ ...200314739518
frequency and risk factors of dermatophytosis in students living in rural areas in eskişehir, turkey.our study included 2384 students from five villages around eskişehir, turkey. we asked every student for their personal identification and also for their sanitation in order to get an idea about dermatophytosis. samples taken from suspicious lesion were collected and inoculated onto sabouraud dextrose agar slants. for identification of fungi which were grown, macroscopic appearance of colonies, microscopic examination and biochemical tests were used. we found suspicious lesions in 245 (10.3%) an ...200415281399
ascospore-derived isolate of arthroderma benhamiae with morphology suggestive of trichophyton verrucosum.sixty-one ascospores were isolated from an ascocarp produced by the mating of two arthroderma benhamiae strains, rv 26678 and kmu4169, that differed in their mitochondrial dna (mtdna) restriction fragment length polymorphism (rflp) patterns and in the sequences of their nuclear ribosomal internal transcribed spacer (its) regions. rv 26678 is a genetically typical a. benhamiae isolate, while kmu4169, though morphologically indistinguishable from a. benhamiae, is an isolate with a deviating its se ...200415283236
tinea manuum bullosa.we report a case of tinea manuum bullosa in a 36-year-old male, a crop and livestock farmer by trade. the lesion, resembling contact dermatitis, was located in the palm of the right hand. we isolated trichophyton verrucosum. no other skin lesion was detected. blood chemistry and immunology test results were normal. treatment with terbinafine 250 mg day(-1) led to clinical and mycological healing.200515679673
dermatophytosis in tulugudu island, ethiopia.the objective of this investigation was to assess the prevalence of dermatophytoses in children in a geographically restricted area in the ethiopian countryside, and to determine the aetiological agents of these infections. demographical and clinical-dermatological data were collected from all children 4-15 years of age on tulugudu island, southern ethiopia. mycological specimens were taken and species identification determined through morphological observations and biochemical tests, complement ...200515712611
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