Many vaccines, such as those for Hep A and B, HPV, MMR and rabies, need several booster doses to achieve maximal immunological protection. Booster doses add to the complexity of vaccine administration, especially when used in large vaccination campaigns in the developing world. Therefore, anything which simplifies vaccine administration and reduces the need for multiple medical consultations is likely to have a major beneficial impact on future global health campaigns. If the prime-boost strategy could be replaced by a body depot, for example, it’s likely that vaccination coverage could improve for a number of diseases.
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