Should you get a second COVID booster now, or wait for updated shots?July 08, 2022 – New Omicron variants are prompting vaccine-makers to tweak their formulas. Experts weigh in on who needs additional boosters and whether to hold off for the revised shots due in the fall.
6 big questions about new Omicron-targeting boosters answeredSeptember 09, 2022 – Health officials believe the newly formulated shots will offer stronger protection against severe COVID-19 as we head into the fall and winter.
How long does COVID-19 linger in your body? New report offers clues.May 20, 2022 – A comprehensive study found that viral remnants can survive for months after infection in certain people, perhaps causing some symptoms of long COVID.
Two new Omicron variants are spreading. Will they drive a new U.S. surge?May 09, 2022 – The subvariants BA.4 and BA.5 may dodge immunity, especially in unvaccinated people, possibly causing a spike in infections worldwide.
Why Omicron subvariants BQ.1 and BQ.1.1 are poised to take over in the U.S.October 18, 2022 – They now account for a tenth of the nation’s COVID-19 cases. Here’s why these strains are so good at evading immunity—and how the vaccines will protect against them.
These sniffer dogs are learning to smell the coronavirusMay 19, 2021 – Dogs can learn to smell low blood sugar, oncoming seizures, and certain cancers. At the University of Pennsylvania, they’re now learning to smell the coronavirus, too.
What comes after Omicron? New variants are emerging.September 28, 2022 – Though they don't yet have their own Greek names, many variants of SARS-CoV-2 continue to evolve and spread.
Why Omicron variants BA.4 and BA.5 are causing fresh U.S. outbreaksJuly 01, 2022 – More infectious than past strains, these subvariants can also more easily escape antibodies from vaccines and previous infections.
CDC expands booster eligibility to include teens ages 12 to 15January 07, 2022 – Booster doses will be rolled out immediately.
Are some people resistant to COVID-19? Geneticists are on the hunt.April 07, 2022 – Thousands of people repeatedly exposed to the virus never got sick. Scientists hope their DNA may hold clues to new kinds of treatments.
COVID rebounds aren't definitively linked to Paxlovid—here's what we knowAugust 03, 2022 – Rising numbers of people are getting sick again within days of testing negative. But the reasons why are murky, including unclear links to antiviral drugs.
COVID-19 took a unique toll on undocumented immigrantsSeptember 01, 2022 – The pandemic compounded barriers to accessing medical care—and many continue to delay or forgo treatment.
Chronic fatigue syndrome is a puzzle. Your gut microbiome may have the key.March 09, 2023 – New research reveals connections between certain gut bacteria and chronic fatigue syndrome, an ailment often connected to long COVID.
Superbugs were already on the rise. The pandemic likely made things worse.January 28, 2022 – A virus causes COVID-19, but many doctors still prescribe antibiotics to those who don't need them.
Here are the facts about fetal cell lines and COVID-19 vaccinesNovember 19, 2021 – As more people apply for religious exemptions to vaccine mandates, experts explain how and why fetal cells are used in drug development, from vaccines to common pain medications.
Who qualifies for a coronavirus booster shot? Why it’s still unclear.August 13, 2021 – While people with immune-compromising conditions rejoice over the FDA decision, may questions remain unanswered.
