Killed virus vaccines contain viruses that have been treated by chemical or physical means to prevent them from replicating in the vaccinate.
(Killed virus vaccines; contain; viruses that have been treated by chemical or physical means) (viruses; have been treated; by chemical or physical means) (them; from replicating; L:in the vaccinate)
Killed virus vaccines viruses them
contain have been treated from replicating
viruses that have been treated by chemical or physical means
by chemical or physical means
L:in the vaccinate