Will omicron – the new coronavirus variant of concern – be more contagious than delta? A virus expert explains what researchers know and what they don't

It’s too early to say whether the newly identified omicron variant is going to overtake delta. But particular mutations in the new strain have researchers deeply concerned.

Suresh V. Kuchipudi, Professor of Emerging Infectious Diseases, Penn State • conversation
Nov. 30, 2021 ~8 min

Could a chewing gum really reduce the spread of COVID-19? Maybe -- but here's what we need to know first

US researchers have designed a special chewing gum to target SARS-CoV-2. But at this stage, it’s only been tested in a lab – not on real people.

Grace C Roberts, Research Fellow in Virology, University of Leeds • conversation
Nov. 29, 2021 ~6 min


Could oral antiviral pills be a game-changer for COVID-19? An infectious disease physician explains why these options are badly needed

Merck and Pfizer both have oral antiviral pills under review by the FDA. Such treatments could help turn the tide of the pandemic.

Patrick Jackson, Assistant Professor of Infectious Diseases, University of Virginia • conversation
Nov. 19, 2021 ~9 min

What's the difference between a PCR and antigen COVID-19 test? A molecular biologist explains

The two types of COVID-19 tests – antigen and PCR – work in very different ways, which is why one is fast but less accurate and the other is slow and precise.

Nathaniel Hafer, Assistant Professor, Program in Molecular Medicine, UMass Chan Medical School • conversation
Nov. 8, 2021 ~8 min

Is COVID-19 here to stay? A team of biologists explains what it means for a virus to become endemic

Some viruses go extinct, while others stick around. The virus that causes COVID-19 seems likely to remain with us for the long term.

Cody Warren, Postdoctoral Fellow in Virology and Immunology, University of Colorado Boulder • conversation
Nov. 5, 2021 ~10 min

What is herd immunity? A public health expert and a medical laboratory scientist explain

Vaccination campaigns like the ones that eventually eliminated polio and measles in the United States required decades of education and awareness in order to achieve herd immunity in the U.S. population.

Ryan McNamara, Research Associate of Microbiology and Immunology, University of North Carolina at Chapel Hill • conversation
Nov. 3, 2021 ~6 min

The FDA authorizes Pfizer's COVID-19 vaccine for children ages 5 to 11 – a pediatrician explains how the drug was tested for safety and efficacy

Pediatric clinical trials for the COVID-19 Pfizer vaccine for children ages 5 to 11 have shown that the Pfizer shot is safe and effective.

Debbie-Ann Shirley, Associate Professor of Pediatrics, University of Virginia • conversation
Oct. 29, 2021 ~10 min

How to help kids with 'long COVID' thrive in school

When a student suffers a concussion, their school typically offers certain accommodations – lighter workload, rest breaks, more time to complete tests. Do kids with long COVID need the same?

Julie Walsh-Messinger, Associate Professor of Psychology, University of Dayton • conversation
Oct. 29, 2021 ~6 min


Type of ultraviolet light most effective at killing coronavirus is also the safest to use around people

UV lights come in a variety of different wavelengths, but not all are equally effective at disinfection. Researchers tested a number of commercially available lights to find the best.

Karl Linden, Professor of Environmental Engineering and the Mortenson Professor in Sustainable Development, University of Colorado Boulder • conversation
Oct. 26, 2021 ~8 min

An infectious disease expert explains new federal rules on 'mix-and-match' vaccine booster shots

As boosters are authorized for all three COVID-19 shots available in the US, the ability to swap out vaccine types looks to be a boon to the immune system.

Glenn J. Rapsinski, Pediatric Infectious Diseases Fellow, University of Pittsburgh Health Sciences • conversation
Oct. 22, 2021 ~9 min

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