| Low titers indicate a small amount of coronavirus antibodies in the serum, while high titers indicate greater amounts of antibodies. |
| The official investigation found that the breeding ground for the Sars coronavirus in the Amoy blocks was the toilet system. |
| Another possibility is that the human coronavirus acquired genes from another, more virulent virus. |
| While the new coronavirus is still the leading hypothesis for the cause of SARS, other viruses are still under investigation as potential causes. |
| The formerly suspected causes include the metapneumovirus, which belongs to the paramyxovirus family, which differs from the coronavirus family. |
| The institute is engaged in research involving the SARS coronavirus. |
