Сравнительный эпизоотологический мониторинг клещей на наличие антигена вируса ККГЛ в Андижанской области в 2022 и 2024 годах

Сурайё Султанова; Анора Гафурова; Сохиба Рузметова; Холида Миркасимова

doi:10.47689/2181-3663-vol4-iss5-pp36-43

Surayyo Sultanova Junior Research, The Research Institute of Virology of the Republican specialized scientific practical medical center of epidemiology, microbiology, infections and parasitics diseases
Anora Gafurova Junior Research, The Research Institute of Virology of the Republican specialized scientific practical medical center of epidemiology, microbiology, infections and parasitics diseases
Sokhiba Ruzmetova Junior Research, The Research Institute of Virology of the Republican specialized scientific practical medical center of epidemiology, microbiology, infections and parasitics diseases
Kholida Mirkasimova Junior Research, The Research Institute of Virology of the Republican specialized scientific practical medical center of epidemiology, microbiology, infections and parasitics diseases

DOI

https://doi.org/10.47689/2181-3663-vol4-iss5-pp36-43

Keywords

Crimean-Congo hemorrhagic fever , ixodid ticks , Hyalomma , epizootological surveillance , virus circulation , Andijan Region , natural focal infections , ELISA diagnostics

Abstract

Crimean-Congo hemorrhagic fever (CCHF) remains one of the most significant natural focal infections in Central Asia, where climatic dynamics, landscape transformations, and the increasing abundance of ixodid ticks create new epidemiological risks. Andijan Region of Uzbekistan is traditionally considered an area with stable circulation of arboviruses, highlighting the necessity of continuous vector surveillance. This study presents a comparative analysis of CCHF virus activity in 2022 and 2024 based on field tick collections and ELISA diagnostics.

In 2024, a total of 163 pools comprising 1005 ticks were examined, and two samples tested positive for CCHF virus. In comparison, 451 ticks were studied in 2022, with five pools testing positive, indicating higher viral circulation intensity during that period. Despite the larger number of ticks collected in 2024, the proportion of positive pools was lower, likely reflecting natural inter-annual variability in viral activity. These fluctuations may be influenced by seasonal temperature patterns, shifts in biocenotic relationships, tick community structure, and the immune status of livestock—the primary hosts.

The results underscore the need for long-term epizootological surveillance to identify cyclic patterns of virus circulation and to forecast epidemiological threats. A comprehensive approach integrating vector monitoring, laboratory diagnostics, and environmental factor analysis remains essential for improving prevention and control measures for CCHF in the region.

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Published

2025-11-20

Comparative epizootological monitoring of ticks for the presence of CCHF virus antigen in the Andijan region in 2022 and 2024

How to Cite

Sultanova, S., Gafurova, A., Ruzmetova, S. and Mirkasimova, K. 2025. Comparative epizootological monitoring of ticks for the presence of CCHF virus antigen in the Andijan region in 2022 and 2024. Preventive Medicine and Health. 4, 5 (Nov. 2025), 36–43. DOI:https://doi.org/10.47689/2181-3663-vol4-iss5-pp36-43.