Transmission dynamics of pandemic influenza A(H1N1)pdm09 virus in humans and swine in backyard farms in Tumbes, Peru.

ABSTRACT:

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 were collected during each sampling period.

Main outcome measures

We assessed current and past pH1N1 infection in swine through serological testing, virus culture, and RT-PCR and compared the results with human incidence data from a population-based active surveillance cohort study in Peru.

Results

Among 1303 swine sampled, the antibody

SUBMITTER: Tinoco YO 

PROVIDER: S-EPMC4687498 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature