The arrival of Covid-19 vaccines has put the focus of the pandemic fight on inoculating as many people as quickly as possible. But outbreaks are still raging worldwide, with thousands of new infections every day and health systems under pressure to care for the sick, a reality that will continue…

Every country that is imposing varying degrees of lockdowns because of rising coronavirus infection rates — such as the UK did on Monday — is trying to reduce the burden of the disease on its population, health-care systems and economy. The best solution, of course, is vaccines, and three shots…

Count 2020 as a lucky year. This may sound odd given that the world grappled with a pandemic that has killed close to 1.8 million people and crippled many countries’ economies. The “luck” relates to the more than 90% efficacy of the two vaccines – Pfizer Inc.-BioNTech SE’s shot and Moderna Inc.’s…

Vaccines are a crucial tool in the fight against Covid-19, so it’s great news that the UK on Tuesday became the first country to begin mass inoculations using a new shot developed by Pfizer Inc. and BioNTech SE. This vaccine and another developed by Moderna Inc. are set for early approval in the US…

The fight against Covid-19 got a big boost this week, with the Pfizer Inc.-BioNTech SE vaccine showing much better-than-expected effectiveness in preventing disease in its first readout and Eli Lilly & Co.’s therapeutic antibody getting an Emergency Use Authorization from the US Food and Drug…

We all suffer multiple bouts of the common cold throughout our lives and never think twice about it. We live with recurring influenza seasons despite a vaccine. But what about Covid-19? Repeat occurrences of cold and flu happen because our immune systems seem to “forget” the previous infection…

The coronavirus pandemic has upended lives and disrupted the global economy. The sooner we can get a vaccine, the sooner we have a chance at returning to normal. That doesn’t mean we should needlessly rush it. Vaccine development and approval normally takes several years, but it has been…