The Science Of Mixing COVID-19 Boosters
An early NIH study of different booster combos shows an extra dose of any COVID vaccine increases virus-fighting antibodies.
An early National Institutes of Health study of different booster combos shows an extra dose of any COVID vaccine increases virus-fighting antibodies. The most dramatic response comes from an MRNA booster after a Johnson and Johnson vaccine. People who got the single-dose shot saw a 76-fold jump in antibody levels after getting a Moderna booster, and a 35-fold rise after a Pfizer booster. That's compared to a four-fold increase after a second J&J shot. However, some medical experts are skeptical because these results are early. One unclear detail: what level dose a Moderna booster would look like matched with a different brand. Moderna is asking the FDA for a booster that is half a dose. But the NIH mix-and-match study only looked at full doses, meaning we don't know if a half-dose of Moderna would cause as high of a jump in antibodies. Mixing shots could make it more accessible for people who may otherwise have issues getting the same brand doses, or those who had a bad reaction to their first dose. The FDA is expected to issue emergency authorization for Moderna and J&J boosters this week. The CDC's own advisory panel is slated to make its own recommendations. And CDC Director Dr. Rochelle Walensky is expected to move quickly thereafter, meaning boosters in arms could happen by week's end.
Do you still need a COVID-19 shot? WHO updates guidance
The World Health Organization says countries don't need to prioritize COVID-19 vaccines for certain groups, including children.
How you can clean the air to protect yourself from COVID
People can remove harmful aerosol particles, like the virus that causes COVID, from the air on their own terms.
Moderna defends vax price hike, despite billions in taxpayer funding
The company is planning to raise the price of its COVID-19 vaccine from about $26 per dose up to $130 per dose.
One dead, several injured in roof collapse at Illinois theater
Severe weather is to blame for the roof collapse during a heavy metal concert at the Apollo Theater in Belvidere, Illinois.
Families still don't know if relatives died in fire at migrant center
Mexican officials made arrests in connection to a fire that killed at least 39 migrants, but some families don't know if their relatives are dead.
Her dad is a Russian Air Force pilot, she’s an anti-Putin activist
A Russian woman in Chicago leads a group of fellow exiles against Putin and his war.