Abstract
West Nile virus (WNv) is an arthropod borne virus of immense public and livestock health importance. Since it’s first isolation in 1937 from West Nile district of Uganda, there is enough literature documenting its isolation, outbreaks, types of hosts, and symptoms.[1–7] WNv is very widely distributed throughout India and has been isolated from mosquitoes,[8–10] bats(11) and humans.[12–14] Presence of WNv-related antibodies in humans was first reported from Mumbai in 1952(15) and confirmed in 1954.(16) Since then, it has been highly prevalent in India. It has been reported in Rajasthan, Maharashtra, Tamil Nadu, Karnataka, Andhra Pradesh, Gujarat, Madhya Pradesh and Orissa and has been associated with human encephalitis cases.[17–21] With respect to other Indian states including Punjab, we were not able to find any published epidemiological study related with this virus in humans except one conducted in Pakistani Punjab where WNv-related antibodies were found in 32.8–38.5% of the sampled human population.(22) A recent survey conducted by National Institute of Virology (NIV), Pune found significant serological evidence against WNv among horses in and around Pune city of Maharashtra (NIV; unpublished data). Another study published by Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh in 1999 showed prevalence of JE and WNv infections in pig population in and around Chandigarh.(23)
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