Last word. The viruses do not directly react to the vaccine. You are thinking more along the lines of how a bacteria reacts to a antibiotic. An antibiotic actually kills the the bacteria. A virus is not alive. It is how the immune system reacts with either antibodies to deactivate or t- cells to attack. For goodness sake, the viral vaccine is actually some form of a deactivated or seriously weakened virus directly injected into the bloodstream for the immune system to react to.
Try getting a shot of penicillin for the flu and see how well it helps.[ First, viruses are alive. If they were not alive, how could they be killed or attenuated to make current vaccines. In those vaccine the body manufacture antibodies to attack and kill the invading viruses. Sometimes the body can make very effective antibodies and sometimes they do not. For a novel virus the body has never been exposed to the virus and it has no antibodies to fight the virus when the body is first exposed.
Viruses are not killed by antibiotics including penicillin. Some bacteria can be killed by different antibiotics, not all antibiotics kill all bacteria. There are no vaccines to prevent or kill of the Herpes viruses.
