[null and void]

If its seasonal, then warmer weather should see a decline in the frequency and severity of new cases.

Apparently the fact that it's spread to hot, humid Singapore has escaped your notice.

Or you're simply afraid to see facts that conflict with your preconceived conclusions.

Or you're just afraid.

[Malsua]

Apparently the fact that it's spread to hot, humid Singapore has escaped your notice.

Singapore has air conditioning, everywhere. This brings down the temps and humidity. It's a modern, 1st world city. It also has a high population density.

Look where SARS went. It skipped all the hot humid third world places and flourished in the hot humid first world places like Singapore, Hong Kong and Taiwan.