No; viruses are sub-Cellular 'virons', while parasites are frequently multi-cellular organisms.
Viruses
Parasites can carry and transmit viruses, but they do not "cause" them.
viruses are considered parasites (obligate parasites) because they cannot exist on their own. they need the host cell's machinery to reproduce so they cannot "survive" (technically not living) outside the cell.
No; leeches aren't vectors of dog true parasites but they can still infect them with other microorganisms like viruses.
Microflora like bacteria, as well as parasites, viruses, and other microscopic creepy-crawlies.
bacteria, viruses, fungi and parasites
Because viruses can not reproduce or produce protein without a host cell
They both destroy the cells that they attack.
Immunity
no. . . Because parasites and viruses can only grow on living matters... There may be saprophytes and bacteria growing in your food. . . Even parasites and viruses can be there but can not grow. .
bacteria. viruses. fungi. protozoa .(protists). parasites.
the only thing viruses have in common with them is that they move