These are boosters and are therefore to be administered at least every ten years .
TD and TDaP are to be administered to older children , adolescents , and adults so it can therefore be injected into the deltoid muscle .
These are children and are therefore to be administered at least every ten years .
TD and TDaP are to be administered to older children , adolescents , and adults so it can therefore be injected into the deltoid muscle .