Pfizer to seek approval for 3rd vaccine dose, says it could ward off delta variant
The company said Thursday that another shot could dramatically boost immunity and maybe help ward off the latest worrisome coronavirus mutant.
A mix-and-match approach to COVID-19 vaccines could provide logistical and immunological benefits
Various companies use different ingredients and different delivery systems in their COVID-19 vaccines. Researchers are investigating whether it's better for individuals to mix what's available.
U.S. to buy 500 million Pfizer vaccines to share with other countries
The U.S. will buy 500 million more doses of the Pfizer COVID-19 vaccine to share through the COVAX alliance for donation to 92 lower income countries and the African Union over the next year.
Can schools require COVID-19 vaccines for students 12 and up?
Each state has its own rules for which vaccines kids must have to attend school and the reasons students can opt out.
The United States and Canada have one of the largest economic partnerships in the world, and share the world’s largest international border. When COVID-19 hit in early 2020, that border was closed to all nonessential traffic. As more people on…
New York became the latest state to require students at publicly funded colleges be vaccinated for the fall term — a move that comes as overall, new infections in the U.S. have fallen to their lowest since last September. Vaccine…
The Food and Drug Administration said Monday the shot is safe and offers strong protection for younger teens based on testing of more than 2,000 U.S. volunteers.
It's the first time the U.S. has allowed that company's vaccine exported north. Canada has tightly woven commercial ties with the U.S., but it has been getting from Pfizer's vaccines from Belgium until now because U.S. authorities had kept supplies…
As vaccines continue to roll out globally, wealthier nations have been inoculating their populations at much higher rate than the global South, sparking the debate over “vaccine passports.” Northwestern University professor Steven Thrasher, instead, argues in favor of focusing on…
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