Pfizer vaccine protection against infection declines to 64% in Israel

Israel on Monday said the Pfizer/BioNTech COVID-19 vaccine was still very effective in preventing serious illness while also reporting a decrease in preventing infections and symptomatic illness, which coincided with the ending of social distancing requirements and the spread of a new Delta variant.

The Delta variant is estimated to spread 40-60% more readily than the Alpha variant that dominated the U.S. by April, which itself was some 50% more transmissible than the original strain. Fox News has reached out to Pfizer but has not heard back.