Year: 2020 | Month: December | Volume 10 | Issue 6
Prevalence of H9N2 Avian Influenza Virus in Live Bird Markets of Eastern Madhya Pradesh
Baleshwari Kurmi
Harshad Vinayak Murugkar
Manoj Kumar
Chakradhar Tosh
Shanmugasundaram Nagarajan
Asha Verma
Sushil Tripathi
Vijendra Pal Singh
DOI:10.30954/2277-940X.06.2020.30
Abstract:
A cross sectional study was carried out to know the status of H9N2 LPAI virus in retail poultry shops (RPSs) established in live bird markets (LBMs) of eastern Madhya Pradesh, India. A total 288 samples were collected from 4 districts of eastern Madhya Pradesh following cluster sampling method. Samples included 120 tissue samples and 168 environmental samples of live bird markets. All the samples were analysed for virus isolation by embryonated chicken egg inoculation, Hemagglutination (HA), Hemagglutination Inhibition (HI) and Reverse Transcriptase PCR (RTPCR). A prevalence of 9.2 % was found in tissue samples and that of 20.8 % was found in pooled environmental samples. Out of four districts in the study, samples from three districts were found positive for H9N2 AIV. A strong positive correlation (Pearson’s correlation coefficient, r = 0.92) was found between tissue and environmental samples. This study indicated presence and possible spread of H9N2 AIV in these LBMs. These LBMs might impose risk of acquiring infection to occupationally exposed individuals. Therefore, a proper vigilance is needed over the poultry supply chain especially the poultry retail shops along with general awareness about basic biosecurity measures for prevention and control of H9N2 infection.
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