Distribution of cchf vector ticks in different region of iran from 1990 to 2017

Simin Nayebi moghaddam,1,* Nona moradpour,2 Hassan mashhadi,3

1. Department of Biology, Faculty of Science, Islamic Azad University of Mashhad, Iran
2. ph.D of parasitology, Faculty of Science, Islamic Azad University of Mashhad,Iran
3. Department of Biology, Faculty of Science, Islamic Azad University of Mashhad,Iran

Abstract

Introduction

Crimean-congo hemorrhagic fever (cchf) is a tick-born virus with the risk of death. ticks are blood-sucking arthropods. it exists all around the world and known as obligate parasites of the vertebrates. ticks from the hyalomma genus are the major vectors of cchf virus. domestic animals (goats, sheep, etc.) are the common hosts for adult ticks. this paper reviews tick vectors of cchf virus in iran, focusing on the epidemiological status of ticks in different provinces of iran during 1999 to 2017.

Methods

This study was in form of retrospective cross-sectional and the data includes demographic characteristics such as tick types.

Results

The highest affected patients (77.81%) were infected in the first half of the year. the most rate of infection was observed in provinces of sistan & baluchistan, khorasan razavi and fars, respectively. in the provinces of khorasan, sistan and baluchestan, fars, hormozgan, yazd, isfahan, semnan, golestan, tehran, qom, khuzestan, lorestan, ilam, kermanshah, zanjan, ardabil," hyalomma" and "rhipicephalus" tick species are the most prevalent species. also in the provinces of hamedan, mazandaran, "haemaphysalis", and in the province of east azarbaijan, "dermacentor" species also have a high prevalence.

Conclusion

Considering the fact that cchf is a work-related illness and there is no specific antiviral therapy available thus far, necessity of training to better understand the disease, the way of the disease transmission and controlling methods as well as prevention is inevitable. awareness campaigns regarding the risk factors and control measures can aid in reducing the spread of this disease to a greater extent, particularly in urban area. as a result, training periods for people with high-risk occupations for cchf and use of acaroids to control tick population in endemic areas can be purposed as feasible remedies.

Keywords

Vector tick, cchf, iran