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On April 1, Pfizer-BioNTech released results from the longest study yet of their COVID-19 vaccine. In a release, the companies reported that their two-dose vaccine was 91.3% efficacious in protecting people from COVID-19 disease for up to six months. The companies’ previous data, which led to the U.S. Food and Drug Administration’s (FDA) emergency use … Read more

COVID-19 was the third-most-common cause of death in the U.S. in 2020, contributing to more than 375,000 deaths, and a 16% increase in the national death rate, according to provisional data published today by the U.S. Centers for Disease Control and Prevention (CDC). All told, more than 3.3 million people in the U.S. died in … Read more

0000000000000 A manufacturing error at a plant involved in COVID-19 vaccine production affected 15 million doses worth of an ingredient for Johnson & Johnson’s vaccine, according to two sources familiar with the matter, but the company downplayed the situation and said it met its most recent vaccine delivery target. The issue, which occurred recently at … Read more

It’s the last news anyone wants to hear: one year after the United States was slammed with its first wave of COVID-19—which was followed by even worse second and third waves—public health experts are worried that the country is headed for a fourth major spike. During a White House coronavirus briefing on Monday, Rochelle Walensky, … Read more

Pfizer-BioNTech says their COVID-19 vaccine is 100% efficacious in protecting adolescents aged 12 to 15 years from COVID-19 disease. On March 31, the companies released a statement summarizing the results of their study of the safety and efficacy of their vaccine, which is already authorized in the U.S. and elsewhere for use in adults 16 … Read more

COVID-19 has taught us many deadly lessons, among them how dangerous it is to approach a health problem as a political problem. We have lost lives, jobs, hope, and an imagined future, all because scoring political points became more important than following the science. This is not the first time that Americans have made this … Read more

Linda Heim knew her dad didn’t plan to wait for the cancer to kill him. For decades, he’d lived in Montana, which they’d thought was one of the few places where terminally ill people could get a prescription to end their life. After two years of being sick, Heim’s dad got the diagnosis in 2019: … Read more

In a report published today in the MMWR, scientists at the U.S. Centers for Disease Control (CDC) report more good news from real-world studies of people who have been vaccinated against COVID-19. In the study involving 3,950 health care workers, first responders and other essential workers who were vaccinated between December 2020 and March 2021, … Read more

BEIJING — A joint WHO-China study on the origins of COVID-19 says that transmission of the virus from bats to humans through another animal is the most likely scenario and that a lab leak is “extremely unlikely,” according to a draft copy obtained by The Associated Press. The findings were largely as expected and left … Read more

A version of this article also appeared in the It’s Not Just You newsletter. Sign up here to receive a new edition every Sunday. CHASING RAINBOWS (AND VACCINES) We, humans, are notoriously unreliable, superstitious narrators, always scanning the horizon for signs that validate what our hearts have already told us. Take me, for example. I … Read more