somayeh mazaheri department of biology, alzahra university, tehran, ir iran; department of biology, alzahra university, tehran, ir iran. tel: +91-98012807 siavosh salmanzadeh ahrabi department of biology, alzahra university, tehran, ir iran mohammad mahdi aslani department of microbiology, pasteur institute of iran, tehran, ir iran

jamshid ayatollahi infectious and tropical diseases research center, shahid sadoughi university of medical sciences, yazd, ir iran alireza vahidi research and clinical centre for infertility, shahid sadoughi university of medical sciences, yazd, ir iran seyed hossein shahcheraghi infectious and tropical diseases research center, shahid sadoughi university of medical sciences, yazd, ir iran; infectious and tropical diseases research center, shahid sadoughi university of medical sciences, yazd, ir iran. tel: +98-9132531389 alireza bagheripour medical department, shahid sadoughi university of medical sciences, yazd, ir iran marzieh lotfi department of modern sciences & technologies, faculty of medicine, mashhad university of medical sciences, mashhad, ir iran malihe lotfi department of biotechnology, faculty of medicine, zanjan university of medical sciences, zanjan, ir iran

pantea mohammadi medical biology research center, university of medical sciences, kermanshah, ir iran ramin abiri department of microbiology, faculty of medicine, university of medical sciences, kermanshah, ir iran; department of microbiology, faculty of medicine, university of medical sciences, parastar blvd., kermanshah, ir iran. tel: +98-9122773648, fax: +98-8314276471

Daniel Reyes Samuel Vilchez Margarita Paniagua Patricia Colque-Navarro Andrej Weintraub Roland Möllby Inger Kühn

Fabiana C Moreira Mônica A M Vieira Antonio J P Ferreira Dennys M Girão Tânia M I Vaz Ana Cláudia P Rosa Terezinha Knobl Kinue Irino Edna Freymüller Tânia A T Gomes