Depending on the virus, it can live for several minutes up to a week or more depending on the environmental conditions.
A virus outside a host cell is generally referred to as a virion. This is the inactive form of the virus that is unable to replicate until it enters a suitable host cell.
capsid wall
few seconds
No. HIV needs a host. It does not live long, outside the body.
Hep B can live for up to a week outside the body.
It would not be advantageous for a virus to kill its host because if the host dies, the virus would also die since it needs the host to replicate and spread. It is more beneficial for a virus to keep the host alive so it can continue to infect other individuals.
No
The cell invaded by the virus is called a host cell because it provides the environment and resources necessary for the virus to replicate and multiply. The virus uses the host cell's machinery to produce more viruses, ultimately leading to the destruction of the host cell.
No, a virus has no metabolism whatsoever. It relies entirely on tricking the host cell to do its work; while outside a cell, the virus doesn't move, eat, or anything.
Yes, infection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate or breast milk.
Viruses do not cause diseases in the host. Why? Well, the host is already causing the virus so it is IMPOSSIBLE for another virus to be cause in the host.
The virus attaches to the host cells membrane.