_:b57165190 . _:b57165190 "0.81"^^ . _:b57165191 "C1707887" . _:b57165192 _:b57165193 . _:b57165193 . _:b57165190 . _:b57165191 "T062" . _:b57165190 _:b57165192 . _:b57165192 . _:b57165190 . _:b57165193 "protective efficacy" . _:b57165190 _:b57165191 .