Ключевые слова: africa, b11529, ban, booster dose, card, classification, concern, coronavirus, covid, covid variant, covid19, covid19 omicron variant, covid19 variant, doctor, epidemiological, epidemiology, evolution, face mask, female, hand, hold, infection, injection, mask, mutation, n95, new, new covid variant, new variant, omicron, omicron variant, reinfection, risk, safety, sarscov2, south, south africa, south africa variant, syringe, text, travel, vaccination, vaccine, variant, vial, virus, who, world health organization,