Case series study of the clinical profile of H1N1 swine flu influenza.

Objectives: To study the clinical profile of the H1N1 influenza cases attending government hospitals in South India and to study the impact of H1N1 infection on pregnancy outcome.

Materials And Methods: A total number of 442 H1N1 positive patients (198 inpatients and 244 outpatients) from two government hospitals in Chennai, Madras Medical College & Government General Hospital and Institute of Child Health, Egmore were studied retrospectively during a period of 6 months from August 2009 to January 2010.

Results: The rate of reported cases and hospitalization rates was highest among individuals aged 5 to 24 years.