Pfizer

This makes the Johnson & Johnson vaccine the third vaccine to have emergency use authorization from the U.S. Food and Drug Administration.

The FDA could approve a new one-shot COVID vaccine by Friday, as Congress decides on COVID relief bill details. The Johnson & Johnson one-shot vaccine is over 20 percent less effective than Pfizer and Moderna’s, but still far better than a flu shot.

A large real-world test of Pfizer’s COVID-19 vaccine confirms that it’s very effective at preventing serious illness or death, even after one dose. The results come from a mass vaccination campaign in Israel. They give strong reassurance that the benefits seen in smaller tests persisted when the vaccine was used in a general population. The vaccine was 92% effective...

Gov. Charlie Baker says news of the new Johnson and Johnson vaccine being deemed “safe and effective” by FDA is a positive step in vaccine rollout.

COVID-19 vaccine makers tell Congress to expect a big jump in the delivery of doses over the coming month.

Pfizer’s chief business officer writes the company plans to increase its doses to the federal government from four to five million per week to more than 13 million by mid-March. Moderna plans to double their delivery of doses to 40 million by April, according to a statement by the company’s president.

The grim milestone means the U.S. continues to lead the world in overall cases and deaths.

It takes Pfizer 110 days to produce a batch of its COVID-19 vaccine. The company says it expects to soon shorten that time to 60 days.

Pfizer announced on Tuesday that it is months ahead of schedule to deliver 200 million doses of its coronavirus vaccine to the U.S. The shipment should be available to Americans starting in May.

A new study suggests that Pfizer/BioNtech’s coronavirus vaccine appears to work against new variants that have begun circulating in the U.S. The study has not been peer-reviewed or published in a medical journal.

Vaccinations for COVID-19 are around the corner as companies rush to get their versions approved for public use in America. Here is everything you need to know about them.

Britain’s main doctors’ organization says it is concerned about the U.K.’s decision to give people a second dose of coronavirus vaccine up to 12 weeks after the first, rather than the shorter gap recommended by manufacturers and the World Health Organization

Nearly two-thirds of Massachusetts’ communities are at the highest risk of coronavirus transmission, state health data released Thursday shows. The town-by-town coronavirus risk data — which classifies communities’ risk level on a scale from red, the highest, to grey — puts a record 229 cities and towns in the red zone, up from 219 last week. That’s just shy of…

Gov. Charlie Baker says the Gillette Stadium vaccine distribution site will eventually deliver up to 5,000 doses a day.

As states and medical centers roll out COVID-19 vaccines, many are highlighting recipients from a variety of racial and ethnic backgrounds to build trust. This is in part due to vaccine hesitancy, especially in Black communities where a history of medical testing without consent and inadequate access to health care has built distrust. A recent study by the Kaiser Family...

Over 1,200 people in Massachusetts have received the second dose of the coronavirus vaccine, a new milestone in the state’s fight against the pandemic. The data was revealed in the state’s weekly vaccine dashboard, published Thursday. It also showed that over 140,000 doses of the vaccine have been administered overall, and that the pace at which people are getting the…

Gov. Charlie Baker extends Massachusetts COVID-19 restrictions and gathering capacity limits. These restrictions do not apply to K-12 schools.

The state has sent about 200 doses of the Moderna COVID-19 vaccine to Northeastern University.

Health experts are debating what to tell study volunteers who got a placebo shot instead of a COVID-19 vaccine.

Beginning Monday, CVS Health will administer Pfizer’s COVID-19 vaccine at about 2,000 long-term care facilities in Massachusetts. The move comes after the Rhode Island-based company began administering doses of the Pfizer vaccine in Connecticut, New Hampshire and other states last week as part of a larger effort to vaccinate at about 40,000 nursing homes and assisted living facilities nationwide. An…