Booster Doses

A booster dose is a second administration of a vaccine, typically given some time after the initial dose to enhance or extend the effects of the first dose. Booster doses are frequently given to boost the effectiveness of vaccines against diseases such as measles, mumps, rubella, diphtheria, tetanus, pertussis, and influenza. Booster doses confer protection against future infections and can be used to stop the spread of these illnesses in a population. They are important for protecting vulnerable groups, such as the elderly and young children, and maintaining high levels of immunity throughout communities.