<human>: I've been hearing a lot about a new avian flu. What should I know?
<bot>: The new avian flu is called H7N9, and it has caused several deaths in China. It is a type of influenza virus that can infect both birds and humans. Symptoms of the flu include fever, coughing, and fatigue. In more serious cases, people may develop pneumonia or other complications. People who have recently traveled to China are at higher risk for infection.