title: Differences in influenza seasonality by latitude, northern India.
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.
authors.forename: Parvaiz A
authors.initials: PA
authors.lastname: Koul
authors.forename: Shobha
authors.initials: S
authors.lastname: Broor
authors.forename: Siddhartha
authors.initials: S
authors.lastname: Saha
authors.forename: John
authors.initials: J
authors.lastname: Barnes
authors.forename: Catherine
authors.initials: C
authors.lastname: Smith
authors.forename: Michael
authors.initials: M
authors.lastname: Shaw
authors.forename: Mandeep
authors.initials: M
authors.lastname: Chadha
authors.forename: Renu B
authors.initials: RB
authors.lastname: Lal
mesh_terms: D006801:Humans; D007194:India / Q000453:epidemiology; D007251:Influenza, Human / Q000453:epidemiology*; D012621:Seasons