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Pfizer data shows vaccine protection remains robust six months after vaccination even as the company argues that boosters will be needed
While company data showed a slight drop in efficacy against any symptomatic cases of covid-19, from 96 percent protection in the first two months following vaccination to 84 percent after four months, the vaccine was 97 percent effective against severe…
Pfizer suggests booster shots will be needed this year, but government officials say science will dictate the timing
Pfizer announced it would seek authorization of a booster shot within weeks, but the FDA and CDC said it was unclear when boosters would be needed.
CureVac, the latest experimental coronavirus vaccine, proves just 48 percent effective overall, a disappointing result
The vaccine is the third to be based on messenger RNA technology that is part of the Pfizer-BioNTech and Moderna vaccines.
Coronavirus vaccines are widely available in the U.S. So why are scientists working on new ones?
Even as vaccine supplies outstrip demand in the United States, the scientific quest for coronavirus shots has scarcely eased.
The quest for a pill to fight viruses gets a $3.2 billion boost
The Biden administration will invest $3.2 billion to find new antiviral drugs, modeling the investment after the one that helped stimulate development of drugs that transformed HIV.
CureVac, the latest experimental coronavirus vaccine, proved just 47 percent effective amid spread of variants, preliminary analysis shows
The trial in 10 countries in Latin America and Europe will continue, and a final result is not expected until the end of June. The CureVac vaccine is of key importance to Europe, which has preordered 225 million doses.
Novavax’s coronavirus vaccine is 90 percent effective, study finds
Vaccinated people were completely protected against severe and even moderate cases of illness by the two-shot regimen in a 30,000-person trial conducted when variants had begun to complicate the pandemic in the United States and Mexico.
FDA advisers debate standards on a coronavirus vaccine for young children
Executives from Pfizer and Moderna have said that data showing whether their vaccines are effective in younger children are expected by fall.
Scientists are figuring out if we will need another coronavirus shot — and which one
For people eager to put the health crisis behind them, the relief of being vaccinated is being replaced by a new worry. Is immunity a ticking clock? Should they plan a family wedding this fall? Will everyone need booster shots? When?
Moderna says teens receiving its vaccine developed a protective immune shield
The Moderna shot could become the second coronavirus vaccine available to adolescents as young as 12.
