During April 2013 in China, mild respiratory symptoms developed in 1/61 workers who had culled influenza A(H7N9) virus-infected poultry. Laboratory testing confirmed A(H7N9) infection in the worker and showed that the virus persisted longer in sputum than pharyngeal swab samples. Pharyngeal swab samples from the other workers were negative for A(H7N9) virus.
Keywords: A(H7N9); China; avian influenza; avian influenza A(H7N9) virus; influenza; mild case; poultry; poultry culling; poultry workers; viruses; wet market.