Differences in Influenza Seasonality by Latitude, Northern India.

Authors :: Koul, Parvaiz A.
Broor, Shobha
Saha, Siddhartha
Barnes, John
Smith, Catherine
Shaw, Michael
Chadha, Mandeep
Lal, Renu B.
Source :: Emerging Infectious Diseases. Oct2014, Vol. 20 Issue 10, p1723-1726. 4p.
Publication Year :: 2014
Abstract: The seasonality of influenza in the tropics complicates vaccination timing. We investigated influenza seasonality in northern India and found influenza positivity peaked in Srinagar (34.09°N) in January-March but peaked in New Delhi (28.66°N) in July-September. Srinagar should consider influenza vaccination in October-November, but New Delhi should vaccinate in May-June. [ABSTRACT FROM AUTHOR]