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Articles on Booster shots

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People wait in line to receive a vaccine shot against COVID-19 in Belgrade, Serbia, Aug. 17, 2021. Serbia and other countries have started administering booster doses. Meanwhile, more than half the world’s population has not had a first dose. AP Photo/Darko Vojinovic

Are COVID-19 boosters ethical, with half the world waiting for a first shot? A bioethicist weighs in

Scientists debate the medical benefits of booster shots. But there’s another aspect to consider: bioethics.
Cancer and organ transplant patients, people with untreated HIV and people with other immunodeficiencies are at high risk of severe COVID-19 infection. burakkarademir/E+ via Getty Images

Immunocompromised people make up nearly half of COVID-19 breakthrough hospitalizations – an extra vaccine dose may help

People with weakened immune systems are at a high risk of severe and prolonged COVID-19 infections. An extra vaccine dose can bolster protection.
Make that second appointment and get your final dose for full protection. MediaNews Group/Reading Eagle via Getty Images

How effective is the first shot of the Pfizer or Moderna vaccine?

An immunologist explains that you get some protection from the first dose of the mRNA vaccines but you need two to build up strong immunity, particularly to newer coronavirus variants.

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