Jitendra Sharma - District Epidemiologist, Office of the Joint Director of Health, Lakhimpur, Assam
Monika Soni - PhD Scholar, Dibrugarh University, Dibrugarh, Assam.

Acute encephalitis syndrome (AES)/Japanese encephalitis (JE) is the leading viral cause of disability in India. Our study was carried out to comprehend the prevalence of AES/JE cases in 2011-12 at Lakhimpur district of Assam and to find out their association with environmental factors (particularly rainfall). Among the suspected AES cases, 25.92% & 24.39% cases were found JE IgM positive in 2011 and 2012 respectively. A positive correlation was observed between AES/JE cases and monthly rainfall data. In 2012, upto some extent decreasing trend of JE cases were observed due to the vaccination campaign held on February, 2012 at Lakhimpur district.

Japanese Encephalitis, JE IgM, Vaccination, Rainfall