ABSTRACT
OBJECTIVE@#To evaluate the prevalence of West Nile virus seropositivity in the general population of Mashhad, Northeast of Iran.@*METHODS@#One hundred and eighty two individuals living in the city of Mashhad were studied using cluster sampling method. Both IgM and IgG antibodies against WNV were detected by ELISA method.@*RESULTS@#In this study, the overall IgG seroprevalence of positive West Nile virus was 11%; however, IgM antibody was not found in the participants.@*CONCLUSIONS@#Our study suggested that the prevalence rate of West virus is considerable in Mashhad city. It seems necessary for clinicians and health care workers to be aware of WNV infection in the Northeast Iran.
ABSTRACT
Objective:To evaluate the prevalence of West Nile virus seropositivity in the general population of Mashhad, Northeast of Iran.Methods:One hundred and eighty two individuals living in the city of Mashhad were studied using cluster sampling method. Both IgM and IgG antibodies against WNV were detected by ELISA method.Results:In this study, the overall IgG seroprevalence of positive West Nile virus was 11%; however, IgM antibody was not found in the participants.Conclusions:Our study suggested that the prevalence rate of West virus is considerable in Mashhad city. It seems necessary for clinicians and health care workers to be aware of WNV infection in the Northeast Iran.
ABSTRACT
Objective: To evaluate the prevalence of West Nile virus seropositivity in the general population of Mashhad, Northeast of Iran. Methods: One hundred and eighty two individuals living in the city of Mashhad were studied using cluster sampling method. Both IgM and IgG antibodies against WNV were detected by ELISA method. Results: In this study, the overall IgG seroprevalence of positive West Nile virus was 11%; however, IgM antibody was not found in the participants. Conclusions: Our study suggested that the prevalence rate of West virus is considerable in Mashhad city. It seems necessary for clinicians and health care workers to be aware of WNV infection in the Northeast Iran.
ABSTRACT
Background: Crimean-Congo Hemorrhagic Fever [CCHF] is a severe tick-born illness caused by the CCHFV. Ruminant animals are the main host to ticks, and ticks are a vector of CCHF. Therefore, this survey was carried out in 2013 on ticks of Khouzistan province, in the Southwest of Iran, to specify tick species parasitizing live stocks and their seasonal population dynamics
Materials and Methods: during a survey for possible tick population of Khouzistan province as one of the critical epidemiologic areas in Iran, ticks were collected from the body of infested animals by a tweezer and then transported to the laboratory of Medical Entomology, School of Public Health, Tehran University of Medical Sciences and finally were identified to genus and species level using identification key
Results: a total number of 372 hard ticks were collected randomly from 458 live stocks in 7 different cities. Shosh was the most infected city in this study. Ticks infection rate on sheep, goat and cow was 84.12%, 12.69 % and 3.17%, respectively. In the study 2 genus and six species of hard ticks were identified including Rhipicephalus sanguineus, Hyalomma anatolicum, Hyalomma asiaticum, Hyalomma sp., Hyalomma marginatum and Rhipicephalus turanicus. Rhipicephalus sanguineus was the most frequent species in the study area
Conclusion: outbreak of human cases of CCHF in parallel with ticks' distribution shows the importance of this survey. Despite of studies that have been done on ticks distribution and ticks infestation in Iran recently no study has been conducted yet about this field in this province
ABSTRACT
Crimean-Congo hemorrhagic fever [CCHF] virus causes a severe hemorrhagic syndrome in humans with fatality rate up to 50%. Its transmission to humans is through the bite of Ixodid ticks or by contact with blood or tissues from infected livestock. By a nosocomial transmission of Crimean-Congo hemorrhagic fever [CCHF], a health care worker was infected in December 2008 due to a re-emerging outbreak of CCHF in Fars province, Iran. After admission of probable CCHF cases in a local hospital, one of the nurses contributed in taking care of the patients was infected with CCHF, though it seems that she had not had direct contact with blood and secretions of CCHF patients. The laboratory detected anti-CCHF virus IgM antibody through specific ELISA and also the CCHF virus genome in her serum by real-time and gel-based RT-PCR. She was improved by an alert and on time clinical diagnosis and treatment. We recommend that in outbreaks of CCHF, care to prevent airborne transmission should be kept in mind
ABSTRACT
Crimean-Congo hemorrhagic fever [CCHF] is an arboviral zoonotic infection with several reported cases in Iran. The present study was conducted with the aim of establishing effective ways to reduce exposure to the infectious agent and to organize appropriate policies for importing animals. Materials and methods: For this cross sectional study, 372 local and 372 imported sheep were randomly selected and the presence of CCHF-related 1gG antibody and tick on their body were investigated. Totally, 286 [76.9%] of local and 223 [57.8%] of imported sheep were seropositive, however, their difference did not reach a statistical significant level. Ticks were found on the body surface of 115 [31%] local sheep, but imported sheep lacked any tick on their body. Our results revealed the endemic spreading of CCHF in sheep in Isfahan province. Further studies in other parts of Iran may pave the way for better understanding of the CCHF epidemiology in Iran. Keywords: Crimean-Congo hemorrhagic fever, sheep, Iran