the only thing viruses have in common with them is that they move
Parasites can carry and transmit viruses, but they do not "cause" them.
Viruses
No; viruses are sub-Cellular 'virons', while parasites are frequently multi-cellular organisms.
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.
Pathogens. These are typically bacteria, viruses, fungi, or parasites that can cause disease by invading the body's tissues. Common examples include influenza viruses, E. coli bacteria, and malaria parasites.
Common illnesses caused by bacteria include strep throat, urinary tract infections, and pneumonia. Viruses can cause the common cold, influenza, and gastroenteritis. Fungal infections can result in athlete's foot, yeast infections, and ringworm. Parasites can lead to malaria, toxoplasmosis, and giardiasis.
bacteria, viruses, fungi and parasites
They both destroy the cells that they attack.
Immunity
Because viruses can not reproduce or produce protein without a host cell
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. .