Pandemic and seasonal influenza viruses among patients with acute respiratory illness in Kashmir (India).

ABSTRACT:

Background

With the emergence of pandemic influenza A (2009A/H1N1) virus in India, we sought to determine the prevalence and clinical presentations of seasonal and pandemic influenza viruses among acute respiratory illness (ARI) patients from Srinagar, a temperate climate area in northern India, during the peak winter season.

Methods

Combined throat and nasal swabs, obtained from 194 (108 male) presenting with ARI from January to March 2010 (Week 53-week 10), were tested by RT-PCR for influenza A and B, including 2009A/H1N1 viruses. HA1 gene of selected 2009A/H1N1-positive samples was sequenced, and phylogenetic analysis was carried out.

Results

Twenty-one (10·8%, age 15-80 years, median age 40 years) patients tested positive for influenza viruses: 13 (62%) for 2009A/

SUBMITTER: Koul PA 

PROVIDER: S-EPMC5780669 | biostudies-literature | 2011 Nov

REPOSITORIES: biostudies-literature