hand-held mask and the inscription covid 22 on a wooden plaque, concept of new ba4 and ba5 mutations taking over the world

2022 ba4 ba5 background bacteria business care concept corona coronavirus covid covid19 covid22 danger design disease epidemic face flu handheld health hospital illness illustration infection injection inscription mask medical medicine mutations new omicron pandemic people person plaque prevention protection quarantine respiratory safety science symbol taking vaccination vaccine virus white woman wooden world year young