Pfizer and Valneva are touting positive results in a Phase II trial for their Lyme disease vaccine candidate when it was administered as a booster.
The trial showed VLA15 had favorable seroconversion rates, or SCRs, for all outer surface protein A (OspA) serotypes, in all of the age groups tested. The dosing schedule of zero to two months and then two to six months reported an SCR of 95.3%, while the dosing regimen of zero to six months had an SCR of 94.6%.
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