Viruses don’t go away.

I can’t think of one virus or bacteria that simply go away without a vaccine. The exception is Bush’s SARS response. “W” did make it go away. He was brilliant in plotting to end SARS before it ever got started. 

There was not one death from SARS in the USA under Bush. Only 115 cases. Bush wrote the quarantine orders for Americans himself.

The opening and closing of travel bans for cities and counties during the SARS outbreak was determined by the WHO.