The Covid-19 vaccine developed by Pfizer and BioNTech is effective at preventing symptomatic and severe disease in people with some chronic illnesses, like diabetes and heart disease, the biggest real-world study showed on April 22.

Pregnant women vaccinated against Covid-19 could pass along protection to their babies, according to a new study in Israel.

Pfizer Inc. and BioNTech SE said on March 10 that real-world data from Israel suggests their Covid-19 vaccine is 94 percent effective in preventing asymptomatic infections, meaning it could significantly reduce transmission.

Confidence in Covid-19 vaccines is growing, with people’s willingness to have the shots increasing as they are rolled out across the world and concerns about possible side effects are fading, a 14-country survey showed on March 5.

The first big real-world study of the Pfizer/BioNTech vaccine to be independently reviewed shows the shot is highly effective at preventing Covid-19, in a potentially landmark moment for countries desperate to end lockdowns and reopen economies.

The risk of illness from Covid-19 dropped 95.8% among people who received both shots of Pfizer’s vaccine, Israel’s Health Ministry said on Feb. 20.

Pfizer’s Covid-19 vaccine greatly reduces virus transmission, according to two Israeli studies, shedding light on one of the biggest questions of the global effort to quash the pandemic.

Israel’s largest healthcare provider reported a 94% drop in symptomatic Covid-19 infections among 600,000 people who received two doses of Pfizer’s vaccine in the country’s biggest study to date.

Global coronavirus cases surpassed 100 million on Jan. 27, according to a Reuters tally, as countries around the world struggle with new virus variants and vaccine shortfalls.

Countries across the globe shut their borders to Britain on Dec. 21 due to fears about a highly infectious new coronavirus strain, causing travel chaos and raising the prospect of food shortages days before Britain is set to leave the European Union.