Entomological Survey during Zika Virus Infection in Ahmedabad, Gujarat
Journal Title: Journal of Communicable Diseases - Year 2019, Vol 51, Issue 1
Abstract
Three laboratory-confirmed Zika virus cases were reported from Bapunagar area, Ahmedabad District, Gujarat on 15 May 2017.Vector survey was done at two residential localities and one Govt. Hospital of the affected area and five Private Hospitals nearer to these colonies. Laboratory detection of Zika virus in field collected mosquitoes was done by using RT-PCR. During Aedes immature survey out of 2558 total houses searched in Ahmedabad affected area HI (5.6) and out of 4439 total containers searched CI & BI (3.1, 5.4) while on seeing individual affected area it was found that at Parmeshwar park the entomological parameter HI was found high (11.3). The overall main potential breeding containers in the affected areas were found mainly to be Scrap (50%), Kothi (Cement tank) (16.7%) and Mud pots (7.7%). High HI shows high risk of transmission of the disease. Total Aedes Mosquito collection for RNA extraction process shows that out of 103 total F1 generation reared mosquitoes had Females (54%) and Males (45.6%) while out of total 35 mosquitoes collected by aspirator had Males (57%) and Females (43%) and all were found negative for Zika Virus during RT-PCR. These results demonstrate that such high Aedes indices can lead to new episode of vector borne diseases especially in concern with Zika outbreak. Potential breeding sources like scrap materials, water logging due to leakage in water supply, bird pans and plastic cups were found with Aedes breeding during the survey suggesting the potential of the area for disease transmission
Authors and Affiliations
Rina Kumawat, Lalthazuali . , Sunita Patel, Rajesh Sharma, Amarpal Singh Bhadauriya, Sweta Bhan, Pankaj Ramteke, TG Thomas, Sujeet Kumar Singh
Keywords
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