Мутирует быстрее, чем Эбола. Вирусологи объяснили, почему новые штаммы ковида появляются чуть ли не каждую неделю

All this goes in line with WHO which considers that big need for vaccination already is not present. For today WHO cannot tell what of present strains possesses potential to become the leader. All of them exist in equilibrium quantities