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Articles on Vaccine booster shots

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Lynn Grieveson /Newsroom via Getty Images

New Zealand’s border quarantine has intercepted thousands of COVID cases, but is it time to retire the flawed system?

New Zealand’s system of managed quarantine at the border may soon be less important, but we could well need to stand it up again quickly if a new COVID-19 variant emerges.
The list of SARS-CoV-2 variants – each with its own unique qualities that give it an edge – just keeps growing. Matt Anderson Photography/Moment via Getty Images

Alpha then delta and now omicron – 6 questions answered as COVID-19 cases once again surge across the globe

People are buzzing with questions about the omicron variant and whether it could help usher in herd immunity. A team of virologists deciphers the latest findings.
Pregnancy poses significant risks for severe illness or death from COVID-19, for both mother and baby. ArtMarie/E+ via Getty Images

Vaccination against COVID-19 supports a healthy pregnancy by protecting both mother and child – an immunologist explains the maternal immune response

In light of mounting research showing the serious risks of contracting COVID-19 during pregnancy, the CDC is re-upping its urgency that pregnant women get their shots.
The FDA and CDC are recommending use of a third shot, or “booster dose” for certain groups of people in the U.S. Patrick T. Fallon/AFP via Getty Images

Tense decision-making as CDC joins FDA in recommending Pfizer booster shot for 65 & up, people at high risk and those with occupational exposure to COVID-19

Fault lines between the FDA and CDC regulatory processes have been on full display in the decisions over which groups of Americans should receive the Pfizer booster shot.
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.

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