New: mhammedAll contenthive-129948krhive-196917hive-183959zzanhive-180932hive-185836steemhive-166405hive-150122hive-101145hive-183397photographyhive-144064uncommonlabhive-184714krsuccesshive-188619hive-145157bitcoinhive-103599hive-193637hive-193186hive-180301lifeTrendingNewHotLikersmhammedturkman (25)in mhammed • 4 years agoCOVID-19: How do subunit vaccines work?Subunit vaccines use a small part of a pathogen to train our immune system to fight off future infection. They cannot cause disease but may need the addition of other chemicals for the vaccine to…