18^th International Virology Summit

Viral Vaccine

Vaccines that are developed from viruses are viral vaccines. Viral vaccines contain either inactivated viruses or attenuated viruses. One of the most common examples of viral vaccine is MMR (mumps, measles and rubella) vaccine. Inactivated or killed viral vaccines contain viruses, which have lost their ability to replicate and in turn cause disease. The first human vaccines against viruses were based using weaker or attenuated viruses to generate immunity. The smallpox vaccine used cowpox, a poxvirus that was similar enough to smallpox to protect against it but usually didn't cause serious illness .Rabies was the first virus attenuated in a lab to create a vaccine for humans.