Children under the age of 12 are protected against severe illness from COVID-19 by mRNA vaccines, but the effectiveness decreases over time, as does immunity gained from previous infections. These findings and others are published in a new study in The Lancet Infectious Diseases.
Public health experts fear that Meta's decision to roll back some of its COVID-19 misinformation measures will lead to more disinformation about the virus, treatments for it and vaccines.
The company announced the changes on Friday after it asked its independent oversight advisory board whether it should continue its COVID-19 misinformation policy for Facebook and Instagram or take a "less restrictive approach."
The bivalent (two-strain) COVID-19 booster provides substantial protection against death among US adults aged 65 years and older, with no significant signs of waning for up to 6 months, concludes a study published Friday in Morbidity and Mortality Weekly.
Two new studies show COVID-19 vaccines are safe in older adults and when administered simultaneously with non-COVID vaccines. Both studies are published in Vaccine.
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