Epidemiology of human infections with avian influenza A(H7N9) virus in China.

ABSTRACT:

Background

The first identified cases of avian influenza A(H7N9) virus infection in humans occurred in China during February and March 2013. We analyzed data obtained from field investigations to describe the epidemiologic characteristics of H7N9 cases in China identified as of December 1, 2013.

Methods

Field investigations were conducted for each confirmed case of H7N9 virus infection. A patient was considered to have a confirmed case if the presence of the H7N9 virus was verified by means of real-time reverse-transcriptase-polymerase-chain-reaction assay (RT-PCR), viral isolation, or serologic testing. Information on demographic characteristics, exposure history, and illness timelines was obtained from patients with confirmed cases. Close contacts were monitored for 7 days

SUBMITTER: Li Q 

PROVIDER: S-EPMC6652192 | biostudies-literature | 2014 Feb

REPOSITORIES: biostudies-literature