DENISE GRADY | The Seattle Times

April 10, 2021 at 2:42 pm

AstraZeneca Vaccine and Blood Clots: What Is Known So Far

Though the incidence of clotting disorders is extremely low, regulators and researchers are trying to raise public awareness of certain symptoms — including headaches, leg...

A nurse fills a syringe with a dose of the AstraZeneca Plc COVID-19 vaccine on Feb. 26 in South Korea. (Lee Young Ho/pool/Sipa USA/TNS)

April 9, 2021 at 11:45 am

Blood clots linked to AstraZeneca vaccine stem from rare antibody reaction

Two reports published Friday in a leading medical journal help to explain how AstraZeneca’s COVID vaccine can, in rare cases, cause serious and sometimes fatal...

Nation & World

HPV vaccination rates are rising, a trend that could eventually curb the increase in cancer cases. But the vaccine rate is not rising fast enough, experts say. (The Associated Press, file)

March 23, 2021 at 5:07 pm

Vaccinated people can get COVID, but it’s likely very rare

Nearly 83 million Americans have received at least one dose of a COVID vaccine, and it is unclear just how many of them will have...

Nation & World

A box of the Moderna COVID-19 vaccine is shown in a cooler, Monday, March 15, 2021, at a Seattle Indian Health Board clinic in Seattle. The SIHB began vaccinating front line staff from Seattle Public Schools Monday, including substitute teachers, custodians, nutrition services staff, special education teachers, and instructional aides, after determining they had enough doses of the vaccine to share with school workers. (AP Photo/Ted S. Warren) OTK OTK

March 16, 2021 at 6:06 am

Moderna begins testing COVID vaccine in babies and young children

Moderna is already testing its COVID vaccine in kids 12-17. The new study will involve some 6,750 healthy kids as young as 6 months in...

Nation & World

March 1, 2021 at 3:46 pm

A COVID vaccine side effect, enlarged lymph nodes, can be mistaken for cancer

Coronavirus vaccinations can cause enlarged lymph nodes in the armpit or near the collarbone, which may be mistaken for a sign of cancer. As vaccines...

Nation & World

FILE — Alejandrina Ochoa, a registered nurse, prepares a dose of the Moderna COVID-19 vaccine at a community center in the Bronx on Feb. 4, 2021. The Food and Drug Administration has informed the drugmaker Moderna that it can put up to 40 percent more coronavirus vaccine into each of its vials, a simple and potentially rapid way to bolster strained supplies, according to people familiar with the company’s operations. (James Estrin/The New York Times) XNYT76 XNYT76

February 24, 2021 at 3:43 pm

Moderna announces a new version of vaccine in hopes of combating variants

Drugmaker Moderna has created a new, experimental form of its coronavirus vaccine to combat a worrisome variant of the virus, and has also begun to...

Nation & World

January 29, 2021 at 4:55 pm

Which Covid Vaccine Should You Get? Experts Cite the Effect Against Severe Disease

More important than preventing “some aches and a sore throat,” Dr. Anthony Fauci said, is to fend off severe disease, especially in people with underlying...

Nation & World

FILE — A participant in a Novavax COVID-19 vaccine trial receives an injection at Wits RHI Shandukani Research Centre in Johannesburg on Dec. 8, 2020. Moderna’s vaccine is effective against new variants of the coronavirus that have emerged in Britain and South Africa, the company announced on Monday, Jan. 25, 2021. (Joao Silva/The New York Times)

January 25, 2021 at 6:15 pm

As Virus Grows Stealthier, Vaccine Makers Reconsider Battle Plans

Scientific experts are realizing the virus is changing more quickly than once thought, and may well continue to develop in ways that help it elude...

Nation & World

January 12, 2021 at 4:01 pm

Doctor’s death after COVID-19 vaccine is being investigated

Dr. Gregory Michael, a 56-year-old obstetrician and gynecologist in Miami Beach, received the vaccine on Dec. 18 and died 16 days later from a brain...

Nation & World

December 18, 2020 at 5:28 pm

FDA OKs Moderna COVID vaccine, adding millions more doses to the U.S. supply

The Food and Drug Administration on Friday authorized the coronavirus vaccine made by Moderna for emergency use, allowing the shipment of millions more doses across...

Nation & World