Pfizer has signed a deal to purchase Metsera Inc., an obesity drugmaker in the development stage, after winning a bidding war against Novo Nordisk.

The fall COVID-19 vaccine season is starting slowly for Pfizer, with U.S. sales of its Comirnaty shots sinking 25% after federal regulators narrowed recommendations on who should get them.

Pfizer is suing over some unsolicited competition in its nearly $5 billion bid to buy the drugmaker Metsera.

Texas Medical Association has nudged physicians to consider COVID vaccine recommendations from other medical groups.

Drugmaker Pfizer has agreed to lower drug costs and invest $70 billion in U.S. manufacturing under a deal struck with President Donald Trump's administration.

The seemingly relentless rally on Wall Street drove U.S. stocks to more records.

The Food and Drug Administration has approved updated COVID-19 vaccines for the upcoming fall and winter season.

The federal government’s decision to slash $500 million in funding for mRNA vaccine research has sparked concern among health experts.

The bill would allow a vaccine exemption form to be downloadable. Currently, a form must be requested from the state and mailed to the recipient.

A key vaccine advisory committee is meeting for the first time under new U.S. Health Secretary Robert F.

U.S. stock indexes trimmed some of their stellar gains for the year.

U.S. health officials are recommending that people 50 and older get a shot against bacteria that can cause pneumonia and other dangerous illnesses.

Updated COVID-19 vaccines are on their way.

Pfizer's CEO Albert Bourla is trying to reposition the global pharmaceutical giant for a post-pandemic world.

Federal health officials say older U.S. adults who got a COVID-19 shot in the fall should get a booster dose now.

A fiery debate over public health and personal rights has gripped Puerto Rico as legislators clash with medical experts.

Experts argue other assertions made in the lawsuit filing are completely unsubstantiated, such as one claiming that vaccinated people were more likely to die from COVID-19, which Texas health data disputes.

The COVID-19 treatments millions of have taken for free from the federal government will enter the private market next week with a hefty price tag.

U.S. health officials are recommending RSV vaccinations for moms-to-be as a second option to protect newborns.

Pfizer and Moderna say they have sent out millions of doses of the new COVID-19 vaccines in the past week.

Americans can now get an updated COVID-19 vaccine.

U.S. regulators have approved updated COVID-19 vaccines from Pfizer and Moderna, shots aimed at revving up protection this fall and winter.

U.S. regulators have approved the first RSV vaccine for pregnant women to protect their newborns.

U.S. hospital drug supplies may be strained further after a tornado ripped open the roof of a Pfizer factory this week.

A tornado has heavily damaged a major Pfizer pharmaceutical plant in North Carolina — the latest in a string of extreme weather events plaguing the U.S. Torrential rains flooded communities in Kentucky while an area from California to South Florida endured more blistering heat on Wednesday.

The next round of COVID-19 vaccines will target one of the latest versions of the coronavirus.

U.S. health regulators have given full approval to Pfizer’s COVID-19 pill Paxlovid.

Federal health advisers are backing a first-of-its-kind RSV vaccine to protect newborns by immunizing their moms late in pregnancy.

Data from the San Antonio COVID-19 Dashboard shows us that only 15.1 percent of people in Bexar County have the updated booster.

Older Americans and people with weak immune systems can get an extra COVID-19 booster dose this spring.

Moderna’s CEO is defending a plan to more than quadruple the company’s COVID-19 vaccine price.

U.S. health advisersare backing the continued use of Pfizer’s COVID-19 pill Paxlovid, saying it remains an important option for adults at high risk of severe illness.

Federal health advisers have narrowly backed an experimental vaccine from Pfizer that could become the first shot to protect older adults against the respiratory illness known as RSV.

California won’t make children get the coronavirus vaccine to attend schools.

China will not include Pfizer’s COVID-19 treatment drug in a national reimbursement list that would have allowed patients to get it at a cheaper price, saying it was too expensive.

U.S. regulators have cleared doses of the updated COVID-19 vaccines to children younger than 5.

Pfizer is asking U.S. regulators to authorize its updated COVID-19 vaccine for children under age 5.

The Indian Health Service says all tribal members covered by the federal agency will be offered a vaccine at every appointment, when appropriate.

Stocks gave up early gains and ended lower on Wall Street after an unexpectedly strong report on the job market raised concerns that the Federal Reserve will need to keep the pressure on inflation with aggressive interest rate increases.

Pfizer will charge $110 to $130 for a dose of its COVID-19 vaccine once the U.S. government stops buying the shots.

A state audit says the North Dakota Health Department stored thousands of COVID-19 vaccine doses at incorrect temperatures or without temperature data over the past two years — and that some of the vaccine was administered to patients.

The U.S. is about to offer updated COVID-19 booster shots to kids as young as 5.

Pfizer is asking the Food and Drug Administration to expand use of its updated COVID-19 booster shot to children ages 5 to 11.

Israel has started administering doses of the new COVID-19 vaccine tailored to fight the highly infectious omicron variant.

The European Medicines Agency has recommended the authorization of a tweaked booster dose of the Pfizer-BioNTech coronavirus vaccine that includes protection against two of the latest versions of omicron, as countries look to bolster their immunization programs ahead of winter.

University Health will begin offering the Pfizer-BioNTech bivalent COVID-19 vaccine starting Tuesday to provide a new layer of protection against the Omicron variant.

New COVID-19 boosters targeting today’s most common omicron strains should begin arriving within days.

Updated COVID-19 booster shots are expected to roll out soon, which is why the San Antonio Metropolitan Health District is no longer offering the original boosters to anyone 12 years old or older.

New COVID-19 boosters that target today's most common omicron strains are set to begin soon.

The European Medicines Agency has recommended the authorization of two coronavirus vaccines made by Pfizer-BioNTech and Moderna Inc., tweaked to include protection against an early version of the omicron variant.

The Biden administration hopes to make getting a COVID-19 booster as routine as going in for the yearly flu shot.

California won't allow teens age 15 and up to be vaccinated against the coronavirus without their parents' consent.

U.S. regulators have authorized updated COVID-19 boosters, the first to directly target today's most common omicron strain.

Pharmaceuticals Pfizer and BioNTech say they have asked the European Medicines Agency to authorize their updated coronavirus booster vaccine that includes the most recent omicron subvariants.

COVID-19 vaccines tweaked to better match today’s omicron threat are expected to roll out in a few weeks but how much will they help.

Pfizer’s COVID-19 pill appears to provide little or no benefit for younger adults.

University Health director of hospital epidemiology Dr. Jason Bowling answers some of the most frequently asked questions about COVID-19, boosters, new vaccines and new CDC recommendations.

Pfizer’s says its COVID-19 vaccine was 73% effective in protecting children younger than 5 as omicron spread in the spring.

Pfizer has asked U.S. regulators to authorize its combination COVID-19 vaccine that adds protection against the newest omicron relatives.

Researchers are seeking thousands of volunteers in the U.S. and Europe to test the first potential vaccine against Lyme disease in 20 years.

BioNTech, which teamed with Pfizer to develop a powerful COVID-19 vaccine, has reported higher revenue and net profit in the first half of the year.

U.S. regulators say they are no longer considering authorizing second COVID-19 booster shots for all adults under 50 this summer.

Everyone in Britain who is 50 or over will be offered a fourth dose of coronavirus vaccine in the fall, lowering the age threshold from the previously announced 65.

The U.S. is getting another COVID-19 vaccine choice.

For some parents of kids under 5 who want to vaccinate them, the wait has been excruciating, fraught with delays and close calls. Others are hesitant to have their young children vaccinated.

U.S. pharmacists can now prescribe the leading COVID-19 pill directly to patients.

U.S. regulators are telling COVID-19 vaccine makers to tweak any booster doses intended for fall so they protect against the newest omicron relatives.

Government advisers are recommending that some U.S. adults get a modified COVID-19 booster shot this fall — one that better matches more recent virus variants.

U.S. health authorities are facing a critical decision: whether to offer new COVID-19 booster shots this fall that are modified to better match the latest changes of the shape-shifting coronavirus.

Pfizer says tweaking its COVID-19 vaccine to better target the omicron variant is safe and boosts protection.

Scientists estimate that nearly 20 million lives were saved worldwide by COVID-19 vaccines during their first year.

An expert panel backed a second COVID-19 vaccine option for kids ages 6 to 17.

San Antonio Metro Health announced Tuesday it will offer the COVID-19 vaccine to children, ages 6 months older.

U.S. health officials have opened COVID-19 vaccines for infants, toddlers and preschoolers — the last group without the shots.

U.S. regulators have authorized the first COVID-19 shots for infants and preschoolers.

COVID-19 shots for infants, toddlers and preschoolers in the U.S. have moved a step closer.

A government advisory panel has endorsed a second brand of COVID-19 vaccine for school-age children and teens.

A review by federal health officials says that Pfizer's COVID-19 vaccine appears safe and effective for children under 5, the only group not currently eligible for vaccination.

Next week brings a marathon of hearings as the U.S. decides whether to open COVID-19 vaccinations to kids under 5.

White House officials say orders have been coming in for COVID-19 vaccine doses for small children.

A more traditional kind of COVID-19 vaccine is a step closer to becoming the fourth option for U.S. adults.

The Biden administration says children under 5 may be able to get their first COVID-19 vaccination doses as soon as June 21, if federal regulators authorize shots for the age group as expected.

Pfizer says it will provide nearly two dozen products at not-for-profit prices in some of the world’s poorest countries.

Parents hoping to get their youngest children vaccinated against COVID-19 have some encouraging news.

A federal appeals court is being asked to reconsider its decision allowing the Biden administration to require that federal employees get vaccinated against COVID-19.

Pfizer says three small doses of its COVID-19 vaccine protect kids under 5.

U.S. regulators have authorized a COVID-19 vaccine booster for healthy children ages 5 to 11.

Stocks rose in morning trading on Wall Street Tuesday as investors are tempted by lower prices a day after the S&P 500 hit its lowest level in more than a year.

The head of the World Health Organization has called on Pfizer to make its COVID-19 treatment more widely available in poorer countries.

Shares are mixed in Asia with Chinese benchmarks pressing higher after a rally in technology companies helped reverse most of an early slide on Wall Street.

A small number of COVID-19 patients are relapsing after taking Pfizer's antiviral pill, raising questions about the drug at the center of the U.S. response effort.

U.S. regulators are strictly limiting who can receive Johnson & Johnson’s COVID-19 vaccine due to a rare but serious risk of blood clots.

The Food and Drug Administration has set tentative dates in June to publicly review COVID-19 vaccines for the youngest American children.

Moderna is asking U.S. regulators to open its COVID-19 vaccine to the nation's youngest children.

COVID-19 patients have two treatment options that can be taken at home.

COVID-19 vaccines still offer strong protection against severe illness and death, but Moderna and Pfizer are testing combination shots as a possible new kind of booster.

Moderna hopes to offer updated COVID-19 boosters in the fall that combine the original vaccine with protection against the latest variant.

Pfizer wants to expand its COVID-19 booster shots to healthy 5- to 11-year-olds.

Germany’s health ministry says the country may have to discard 3 million doses of expired COVID-19 vaccine by the end of June.

A federal appeals court has upheld President Joe Biden’s requirement that all federal employees be vaccinated against COVID-19.