A Case of Avian Influenza a ( H 7 N 9 ) with Lactose Intolerance

The avian influenza A (H7N9) has infected more than 500 people in China since the first human infection was confirmed in Mar 2013. Diarrhea was present in some H7N9 infected patients, but this is the first report on the clinical characteristics of an H7N9-infected patient with lactose intolerance. Geographical location, environment, lifestyle, and host factors including genetic variations could have played a role in the susceptibility to influenza A (H7N9) infection.