Definition: The term "variola vaccine" is not commonly used or recognized in the medical field. It may refer to a variety of different vaccines, including those for measles, mumps, and rubella (MMR), polio, diphtheria, tetanus, pertussis, and hepatitis B virus (HBV) vaccine. If you have questions about these diseases, it would be best to consult with healthcare professionals or authorities in your country's health system.
closed bracket.
what should be said.