Israel’s coronavirus czar says first dose less effective than Pfizer indicated

Israel’s coronavirus czar Nachman Ash has reportedly said the first dose of Pfizer’s vaccine provides less protection against COVID-19 than the US pharmaceutical firm had initially indicated it would, and cautioned that it may not protect against new strains of the virus.

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Study of convalescent sera from 44 South Africans infected in first wave, >90% showed reduced immunity & 48% had complete immune escape to 501Y.V2

Study of convalescent sera from 44 South Africans infected in first wave >90% showed reduced immunity and 48% had complete immune esape to 501Y.V2… ...More...