To reach and maintain high and protective levels of antibody, we need one or more injected “booster dose(s)”. For others such as human papilloma and hepatitis A and B vaccines, one booster dose may suffice for decades of protection. Also Read Can Covaxin booster dose prolong protection? For every country planning vaccine roll-out, the science of vaccinology demands that all those getting priming doses should receive at least one booster dose — at a well-chosen interval. India will do well to plan a vaccination strategy for completing two priming doses in all adults and children, third dose to the special category described above, and one booster dose to everyone one year later.

Source: The Hindu August 11, 2021 18:33 UTC