Brick building with tall windows and letters in front that say "Food and Drug Administration"
FDA Limits Use of J&J Vaccine, Citing Safety Concerns
US adults are now only eligible for the vaccine under certain circumstances.
ABOVE: ©, Grandbrothers
FDA Limits Use of J&J Vaccine, Citing Safety Concerns
FDA Limits Use of J&J Vaccine, Citing Safety Concerns

US adults are now only eligible for the vaccine under certain circumstances.

US adults are now only eligible for the vaccine under certain circumstances.

ABOVE: ©, Grandbrothers


People waiting in line for COVID Vaccine
CDC: COVID-19 Booster Effectiveness Wanes After Four Months
Natalia Mesa | Feb 14, 2022

The agency also finds that third shots prevented hospitalizations during the Omicron wave.

building sign
Johnson & Johnson Vaccine Garners First Full Approval
Chloe Tenn | Nov 24, 2021
Health Canada has given the single COVID-19 shot the official greenlight for use in people 18 and older.
adolescent getting vaccination shot
Moderna Vaccine Paused for Young People in Two European Countries
Chloe Tenn | Oct 6, 2021
Health authorities in both countries announced that people under certain age cutoffs are now ineligible for the Spikevax COVID-19 shot due to its association with heart inflammation.
moderna and pfizer vaccine vials
Moderna vs. Pfizer: Is There a “Best” mRNA Vaccine?
Alejandra Manjarrez | Sep 24, 2021
Both of the mRNA vaccines available in the US are highly effective against severe COVID-19, but recent studies suggest that Moderna’s elicits a stronger immune response and might be better at preventing breakthrough infections.  
COVID-19 vaccine vials on a map of the world indicating inequitable distribution
Wealthier Nations Disregarding WHO Call for COVID-19 Booster Moratorium
Christie Wilcox | Aug 5, 2021
The organization implored nations to wait on booster shots until the global vaccination rate increases, but several of the world’s more well-off countries have expressed their intentions to offer them regardless.
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COVID-19 Vaccines Appear Safe During Pregnancy: Early Data
Christie Wilcox | Apr 22, 2021
Scientists at the US CDC report no red flags in a preliminary analysis of the safety of Pfizer/BioNTech’s and Moderna’s mRNA-based immunizations among expectant mothers.
an illustration of a blood vessel with clumped-together blood cells inside
Blood Clot Risk from COVID-19 Higher than After Vaccines: Study
Shawna Williams | Apr 16, 2021
The chance of developing cerebral venous sinus thrombosis was nearly 10 times higher in the two weeks following a diagnosis of SARS-CoV-2 infection than after receiving an mRNA vaccine, a data analysis finds.
COVID-19, SARS-CoV-2, coronavirus, pandemic, vaccine, vaccine trials, combination, mix and match, immunity, antibodies, T cells, Pfizer, Moderna, AstraZeneca, clinical trials
COVID-19 Vaccine Combos Aim to Boost Immunity
Asher Jones | Mar 9, 2021
Mix-and-match shots could simplify vaccine rollout and stimulate more-robust immune responses. Ongoing clinical trials will soon give answers.
COVID-19, SARS-CoV-2, Johnson & Johnson, Pfizer, Moderna, vaccine, vaccination, variant, FDA
US Authorizes a Third COVID-19 Vaccine
Asher Jones | Mar 1, 2021
Johnson & Johnson’s one-shot immunization could reach people’s arms as early as March 2.
SARS-CoV-2, COVID-19, coronavirus, pandemic, virus, vaccine, vaccination, outbreak, infectious disease, Johnson & Johnson, Moderna, Pfizer, drug development
One-Shot COVID-19 Vaccine Prevents Severe Disease
Asher Jones | Jan 29, 2021
Johnson & Johnson’s vaccine is less effective at preventing COVID-19 than other approved vaccines are, but experts say it could still be an important tool in curbing the pandemic.
COVID-19, SARS-CoV-2, pandemic, B.1.1.7, 501Y.V2, B.1.351, vaccine, immunity, virus, coronavirus, Moderna, South Africa, variant
Moderna Developing Booster Shot for New Virus Variant B.1.351
Asher Jones | Jan 25, 2021
New data suggest that the company’s approved COVID-19 vaccine protects against different virus variants, but could be less effective against the one that originated in South Africa.
US Officials Debate Efficacy of Half Doses of COVID-19 Vaccine
Lisa Winter | Jan 5, 2021
The head of Operation Warp Speed says that by spreading out doses of the Moderna vaccine, more people would be able to get some level of protection sooner, a strategy opposed by other experts.
Moderna’s COVID-19 Vaccine 94 Percent Effective: Initial Data
Max Kozlov | Nov 16, 2020
The results mark the second experimental COVID-19 vaccine to show high efficacy, but the study is not complete and the data have not been peer reviewed.