Israel says Pfizer vaccine effectiveness down to 64 pct amid spread of Delta variant

An Israeli medical worker administers a dose of the COVID-19 vaccine to a recipient at a healthcare services center in Modiin, central Israel, on July 5, 2021. The effectiveness of the Pfizer vaccine against the coronavirus has dropped to just 64 percent in Israel, the country's Ministry of Health said in a statement on Monday. (Photo by Gil Cohen Magen/Xinhua)