human
I've heard that the swine flu outbreak is a serious concern. How dangerous is it?
assistant
The swine flu virus has caused many deaths and illnesses around the world, but it’s not as deadly or contagious as other viruses such as SARS or MERS. It can cause severe illness in some people, including pneumonia and respiratory problems, but most cases are mild or even asymptomatic. In fact, the vast majority of people who get infected with the virus recover without needing medical care.