A virus does not affect a metalbolism at all. Viruses attack the immune system they hide in cells and mutiply themselves disabling the immune system's help
no metabolism
The immune system stimulating TSH stimulates the metabolism of almost all tissues in the body.
mode of metabolism
it has no independent metabolism
thyroxin
The Melissa virus is a mass-mailing macro virus. It can effect email that is sent and infect the computer when the email is opened.
useful effect viruses
That entirely depends on the design of the virus.
Water has the least effect on a person's metabolism as it does not contain any calories or nutrients that would have an impact on metabolic rate.
Intelligence
The effect of thyroid hormones on the cells of the body is regulation of metabolism of those cells.
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.