Dermatophytes are Fungi which infect keratinized tissues, that is, skin epidermis, hair and nails. Trichophyton violaceum is an anthropophilic, cosmopolitan dermatophyte. It primarily causes tinea capitis and less commonly tinea corporis and tinea unguium. We present a report of two cases of tinea corporis due to T. violaceum in children. Infections due to T. violaceum are important because of ...

BACKGROUND NADPH-cytochrome P450 reductase (CPR) plays a central role in cytochrome P450 action. The genes coding for P450s are not yet fully identified in the bed bug, Cimex lectularius. Hence, we decided to clone cDNA and knockdown the expression of the gene coding for CPR which is suggested to be required for the function of all P450s to determine whether or not P450s are involved in resista...

1. Perry RD, Fetherston JD. Yersinia pestis— etiologic agent of plague. Clin Microbiol Rev. 1997;10:35–66. 2. Drancourt M, Houhamdi L, Raoult D. Yersinia pestis as a telluric, human ectoparasite–borne organism. Lancet Infect Dis. 2006;6:234–41. DOI: 10.1016/S14733099(06)70438-8 3. Blanc G, Baltazard M. Recherches expérimentales sur la peste. L’infection du pou de l’homme, Pediculus corporis de ...

Of all bacteria, Bartonella quintana has the highest reported in vitro hemin requirement, yet an explanation for this remains elusive. To produce diseases such as trench fever, endocarditis, and bacillary angiomatosis, B. quintana must survive and replicate in the disparate environments of the Pediculus humanus corporis (body louse) gut and the human vasculature. We previously identified a five...

Background: Pediculosis in humans and especially children is a very common dermatological disorder caused by the parasites Pediculus humanus capitis, Pediculus humanus humanus and/or Pediculus phthirus pubis. Aim: The aim of this study was to further investigate the relations of studied socioeconomic variables towards the understanding of pediculosis dynamics in the Greek population. Materials ...

background: head lice infestation is one of the most common parasitic infections with a long history in the world . the purpose of this study was to determine the prevalence of head lice infestation among 3-6 years old children going to nursery schools in kashan, iran in 2009.   materials and methods: this cross-sectional study was performed on 1200 children having the age range of 3-6 years ol...

A biopsy from the lesion on the hand was consistent with features of localized granuloma annulare. The patient was reassured that the condition was self-limited. The lesion on her calf, however, grew larger and new nummular and annular plaques developed that ultimately involved her legs, arms, abdomen, and back. A new diagnosis was made of generalized granuloma annulare. During the next 21⁄2 ye...