Transmission dynamics of pandemic influenza A(H1N1)pdm09 virus in humans and swine in backyard farms in Tumbes, Peru Institute of Tropical Medicine
OBJECTIVES: We aimed to determine the frequency of pH1N1 transmission between humans and swine on backyard farms in Tumbes, Peru.
DESIGN: Two-year serial cross-sectional study comprising four sampling periods: March 2009 (pre-pandemic), October 2009 (peak of the pandemic in Peru), April 2010 (1st post-pandemic period), and October 2011 (2nd post-pandemic period).
SAMPLE: Backyard swine serum, tracheal swabs, and lung sample ...