The common cold, chicken pox, cold sores ... In some cases, the virus also contains enzymes, such as polymerases and proteases, which are necessary for viral replication inside the cell.

Vaccines that prevent smallpox and mpox ... a single shot of a live virus but carries the risk of serious side effects; the ...

BK polyomavirus, or BKPyV, is a major cause of kidney transplant failure. There are no effective drugs to treat BKPyV.