_:b56524266 _:b56524267 . _:b56524266 "0.83"^^ . _:b56524267 "T169" . _:b56524266 . _:b56524268 . _:b56524269 . _:b56524266 . _:b56524269 "seroconversion" . _:b56524267 "C0439836" . _:b56524266 . _:b56524268 _:b56524269 . _:b56524266 _:b56524268 .