בנוסף לחיסון: מדוע חשוב להמשיך לעטות מסכות ולשמור על ריחוק חברתי

Dropping anti-Covid measures during vaccine rollout 'risks resistant variants' https://medicalxpress.com/news/2021-07-vaccine-resistant-covid-strains-emerge.html

UK scientists believe it is 'almost certain' a coronavirus variant will emerge that beats current vaccines https://edition.cnn.com/2021/08/01/health/uk-scientists-covid-variant-beat-vaccines-intl/index.html