Joe Palca

Joe Palca appears in the following:

Breakthrough infections might not be a big transmission risk. Here's the evidence

Tuesday, October 12, 2021

Are vaccinated people who get COVID as likely to spread the infection as unvaccinated people? Scientists don't think so.


Breakthrough COVID may not be as threatening as scientists thought

Monday, October 11, 2021

Can a vaccinated person with a breakthrough infection infect others? Conventional wisdom says yes, but new research says it's not all that likely.


New antiviral drug from Merck could help reduce COVID hospitalizations and deaths

Friday, October 01, 2021

Pharmaceutical giant Merck announced promising results from a study of a new antiviral drug. Molnupiravir reduced COVID hospitalizations or death by 50% in a trial involving 775 volunteers.


The Pfizer Booster Shot Is Only Being Recommended For People 65 And Over

Saturday, September 18, 2021

A Food and Drug Administration panel voted against giving most Americans a third Pfizer vaccine despite President Biden's plan to provide a COVID-19 booster to anyone over the age of 16.


FDA Advisers Endorse Pfizer COVID Booster Only For Those 65 And Over Or At Risk

Friday, September 17, 2021

An independent committee of experts has recommended that the Food and Drug Administration should not allow Pfizer to provide a third dose of its COVID-19 vaccine to Americans older than 16.


A Decision About Booster Shots To Fight COVID Could Be Coming Soon

Friday, September 17, 2021

The committee of independent experts advising the FDA on vaccines meets Friday. They'll be considering Pfizer's application to start offering COVID-19 vaccine boosters to all Americans older than 16.


Pfizer Wants To Offer A 3rd COVID Vaccine Dose. Here Are The Pros And Cons

Wednesday, September 15, 2021

Pfizer is seeking the FDA's permission to offer a third COVID-19 vaccine dose to those 16 and older. There's data that the vaccine's efficacy is waning and evidence that a booster can reverse that.


New Evidence Points To Antibodies As A Reliable Indicator Of Vaccine Protection

Monday, August 23, 2021

After vaccination, antibody levels can help predict how much protection a COVID-19 shot offers, scientists are learning. The finding could speed up the development of future vaccines.


A Texas Lab Performs Crucial Testing For Pfizer's COVID Vaccine

Friday, August 20, 2021

The lab has access to a high-security facility that Pfizer needed to prove its COVID-19 vaccine was working. Now the scientists there are testing the vaccine's effectiveness against viral variants.


A Shot Against COVID For Kids Under 12 — Your Questions Answered

Wednesday, August 18, 2021

A COVID-19 vaccine for children younger than 12 is not yet available, but research is well underway and the first shot for some kids in this age group is expected in the fall, doctors say.


The White House May Recommend COVID-19 Booster Shots

Tuesday, August 17, 2021

The Biden administration is close to advising fully vaccinated Americans to get COVID-19 booster shots after eight months, according to a source familiar with the discussions.


FDA Authorizes Additional COVID-19 Dose For Immunocompromised People

Friday, August 13, 2021

The FDA has authorized the use of a third dose of a COVID-19 vaccine for people with compromised immune systems. Why is the agency taking that step?


The CDC Strongly Recommends That Pregnant Women Get A COVID-19 Vaccine

Thursday, August 12, 2021

A study of a thousand women is underway to determine when during pregnancy is the best time to get a COVID-19 vaccine, and whether infants will be protected by the vaccine once they are born.


Scientists May Have Found A Marker Of How Effective COVID-19 Vaccines Are

Tuesday, August 10, 2021

Scientists have been looking for some kind of marker in the blood that could be used to predict whether a COVID-19 vaccine is working or not — now, they think they have one.


On Its Way To Mercury, This European Space Probe Just Swung By Venus

Tuesday, August 10, 2021

To reach the innermost planet in our solar system, this European space probe needs a little help from the gravity of Venus.


Studies Are Looking Into The Benefits Of The Vaccine In Children As Young As 6 Months

Thursday, August 05, 2021

Right now, only kids 12 and older can get a COVID-19 vaccine in the U.S. Studies underway at multiple sites are gathering data to see if the vaccine can be given to children as young as six months.


Breakthrough COVID-19 Infections Are Rare, But Delta Poses Risks To Vaccinated People

Monday, August 02, 2021

Breakthrough COVID-19 infections are still quite rare, but scientists are now learning more about the risks posed by the delta variant to people who are vaccinated.


Q&A: What's Different About The Delta Variant

Saturday, July 31, 2021

Health officials around the world are adjusting their plans for combatting the coronavirus in light of the more infectious Delta variant — and evidence that even vaccinated people can spread it.


Pfizer Says A 3rd Dose Of Its COVID-19 Vaccine Boosts Immunity

Wednesday, July 28, 2021

Pfizer presented data to investors showing that a third dose of its COVID-19 vaccine boosts immunity. The company believes everyone will need a boost eight to 12 months after receiving a second shot.


COVID Vaccine Latest: J&J Warning Label And Israel Starts Booster Dose

Tuesday, July 13, 2021

The FDA ordered Johnson and Johnson to put a label on its COVID-19 vaccine warning of the risk of a neurological disorder. Israel is offering booster shots to individuals who are immune compromised.