Why did the sars virus suddenly disappear?

Virulence. Like many very aggressive illnesses that kill all or most of their hosts, the sars coronavirus appears to have burned itself out. Additionally, the chinese government was very aggressive in eradicating any host species in areas that the disease was first seen. It didn't really "suddenly" disappear, but rather it gradually faded away. Influenza, tb, and malaria let their hosts live ....

Related Questions

Does the sars virus have death rate yet?

Probably extinct. There haven't been any cases in nearly eight years, so it has likely vanished as a pathogen. Read more...
9.6% 2003 outbreak of sars ( coronavirus respiratory illness ) had 8096 patient sick with 774 deaths - 9.6 % mortality rate. This percentage was much higher in older patients with mortality rate as high as 43% in patients above age 60. Read more...

What happens to a sars-virus infected cell?

It dies. The virus takes over the metabolic processes of the cell and begins to replicate more viruses. When the cell is depleted of energy it dies. Read more...

Is it true that the swine flu could spread faster than sars virus?

Not really. Both spread through respiratory droplet, and we're quite virulent. There was never a head to head contest to see which spread faster. Read more...
No. A single contact is sufficient for transmission of both viruses. Every year we see the flu virus infect millions of people in a few days or weeks. Read more...