Bird flu has not been effectively contained. The threat of it mutating so people can transmit it is still there, and the threat is very large.
At this point, people will be very alert in all the hospitals and we have been training the doctors in all the hospitals talking about this. Now, people are very alert if these kind of symptoms are being reported.
Some people there (in the countryside) are not alert for bird flu.
Some people there are not alert for bird flu. They don't report serious pneumonia cases to relevant departments when they hear of them.
People don't just contract the virus through contact with dead poultry. They can also get the virus from contact with live poultry and migratory birds.