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Viral surveillance and prediction may be key parts of figuring out what goes into a vaccine. Pexels Cover/500px via Getty Images

Future COVID-19 booster shots will likely need fresh formulations as new coronavirus variants of concern continue to emerge

A new generation of vaccines and boosters against SARS-CoV-2 may take a page from the anti-influenza playbook, with shots periodically tailored to target the most commonly circulating virus strains.
The best way to stop new variants from arising is to increase the proportion of vaccinated individuals while maintaining infection prevention measures like wearing masks and social distancing. (Shutterstock)

Omicron: Vaccines remain the best defence against this COVID-19 variant and others

Even with a variant like Omicron that may be more transmissible than earlier variants, vaccines remain the most effective tool for protection against COVID-19 and for ending the pandemic.
Public health officials have been waiting for good data before making any decisions about booster shots for people who received Johnson & Johnson’s Janssen COVID-19 vaccine. AP Photo/Mary Altaffer

New Johnson & Johnson data shows second shot boosts antibodies and protection against COVID-19 – but one dose is still strong against delta variant

Your body produces antibodies after an infection or vaccine, but these slowly decline over time. New Johnson & Johnson data sheds light on the duration of protection and the need for booster shots.
A little more than 8% of vaccinated people in the U.S. have received the Johnson & Johnson vaccine. SOPA Images/Contributor/Light Rocket via Getty Images

Do I need a booster shot if I got the Johnson & Johnson vaccine? A virologist answers 5 questions

It has been six months since the Johnson & Johnson vaccine received emergency use authorization. What does six months of data show about its efficacy, side effects and protection from variants?

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