BACKGROUND Influenza viruses circulate in human populations causing epidemics on an annual basis. Pandemics may occur with the formation of new strains. This study describes the profile of patients suffering from H1N1 influenza presenting to a tertiary care hospital, during the 2015 epidemic. Information regarding the sex distribution, age distribution, common clinical features (a long with their duration), comorbid conditions and outcome has been analysed. Data regarding the distribution,

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... iated factors and variations observed in relation to the 2009 pandemic would help in easier identification and supervision of cases in the future. MATERIALS AND METHODS The study was conducted in a tertiary care government hospital in Bangalore, attached to a medical college. Data regarding the common clinical features, the underlying medical condition and the treatment outcome of the patients who presented to the outpatient department, was analysed. A total of 105 suspects were screened from January 2015 to April 2015 and confirmation done by the Polymerase Chain Reaction. RESULTS During the study period, a total of 105 patients were tested for H1N1 of which 37 (35.24%) were positive and most of them were from urban areas in Bangalore. The main presenting features were fever and diarrhoea. All patients were admitted to the ICU, given ventilator support, and treated with Oseltamivir and broad spectrum antibiotics. Average number of days of stay in ICU was 3.73 days per patient. 19 (51.36%) of the patients died. CONCLUSION Unexpected outbreak of such a severity was successfully managed in a tertiary care, public sector hospital due to effective infection control policies and lessons learnt from the 2009 pandemic. KEYWORDS H1NI, Complications HOW TO CITE THIS ARTICLE: Rangappa P, Banu A, Huilgol GB, et al. Profile of patients in H1N1 outbreak in 2015 in a tertiary care hospital in India.