What is the limit of vaccine injections that can be given in the same site?

The general recommendation is to administer no more than one vaccine injection at a time in the same anatomical site, particularly in the deltoid muscle. If multiple vaccines are required, they should typically be given in different sites or muscles to minimize the risk of adverse reactions and ensure adequate immune response. Some exceptions may apply based on specific guidelines or vaccine types, so it’s essential to follow the recommendations provided by health authorities.