Cold sores are caused by the herpes virus. Often this virus is passed from mother to child
in the first few months of life. Individuals that carry this virus have ulcers that form on the
lips, sometimes years after the initial infection. It is common for these ulcers to heal, only
to come back at a later date.
This information on cold sores suggests that the reproductive cycle of the herpes virus is-
(B.4C)
A lysogenic, because symptoms do not occur immediately upon infection
B lysogenic, because the virus is often contracted in infancy
C
lytic, because the virus is passed from mother to child
D lytic, because the virus causes ulcers on the lips
