Loading...
In spring 2013, a novel triple-reassortant influenza A H7N9 virus with low pathogenicity in poultry spread in the Yangtze River delta; by June 7, infection had developed in at least 130 humans. One intervention applied was closure of live poultry markets (LPMs). Now, investigators have quantified the effect of LPM closure on poultry-to-human H7N9 transmission in four major Chinese cities — Shanghai, Hangzhou, Huzhou, and Nanjing — where a total of 780 LPMs were closed, depopulated, and disinfected in April.
The investigators assessed human cases of H7N9 infection until June 7, focusing on 60 confirmed cases that required hospitalization and were believed to have resulted from poultry-to-person transmission, and collecting demographic and cli…