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COVID-19

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COVID-19, a disease caused by the SARS-CoV-2 virus, first appeared in humans in late 2019 and caused a pandemic starting in spring 2020. Related coronaviruses MERS-CoV (which causes MERS) and SARS-CoV-1 (SARS) have caused regional outbreaks but not pandemics at this point.

Scientists detail link between molnupiravir and SARS-CoV-2 mutations

Lisa Schnirring

The study raises red flags about the development of drugs that work in a similar way.

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Masks and N95 respirators

Study on masks vs N95 respirators for health workers spurs concerns

Mary Van Beusekom | News Writer | CIDRAP News

Study suggests medical masks may offer similar protecion as N95 respirators, but experts say hold on.

COMMENTARY: Navigating COVID language traps

Peter M. Sandman, PhD

Public health professionals use some terms imprecisely, others incorrectly, and still others technically accurate but almost sure to be misunderstood by the public.

News briefs

UK: still not clear if BA.2.86 will outcompete other variants

Lisa Schnirring

Study: Immune response from COVID infection after 2 vaccine doses waned slower than after 3 doses

Mary Van Beusekom

Main US COVID markers continue slow rise

Lisa Schnirring

Remdesivir tied to lower COVID death rates in hospital patients receiving oxygen

Mary Van Beusekom

Study: COVID therapeutics not available evenly across US

Stephanie Soucheray
COVID-19 isolate, first case - Yellow

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Listen to the Osterholm Update: COVID-19

Catch the latest episode!

Michael Osterholm

The answers to your COVID questions

Top COVID FAQs

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Read COVID-19 commentaries

By CIDRAP & other experts

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Our roundup of the best COVID visualizations

Up-to-date COVID-19 data

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How common long COVID is may depend on how it's defined

In people who had previously tested positive for SARS-CoV-2, the prevalence of long-term symptoms varied from 26.9% to 64.1%.

Stephanie Soucheray

ACP issues updated Omicron-specific COVID-19 treatment guidance

The authors said Paxlovid and molnupiravir 'probably' improve outcomes for outpatients with mild to moderate illness.

Mary Van Beusekom

COVID vaccination after long COVID may be linked to better outcomes

Sixteen cytokines and chemokines were significantly decreased after vaccination.

Stephanie Soucheray

YouTube sent users to less relevant—not anti-vax—videos amid COVID, study suggests

But the authors caution that watch histories substantially affect video recommendations, complicating the picture.

Mary Van Beusekom

Study: Original Pfizer COVID vaccine 33% effective against emergency, urgent care in young kids

The risk of a positive COVID-19 test at an emergency department or urgent care visit was 0.56 after two doses and 0.88 after three doses.

Mary Van Beusekom
COVID vaccine sign

CDC notes US COVID-19 hospital cases up slightly

Roughly 18,900 Americans were hospitalized for the virus in the first week of September.

Stephanie Soucheray
older hospital patient

Facebook's policy on anti-COVID vaccine content didn't stop users from finding it, study suggests

The platform's system architecture may have enabled anti-vaccine content producers and users to forge new paths to such content.

Mary Van Beusekom
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$4.5 million USDA grant funds SARS-CoV-2 wildlife sampling

The team will collect more than 20,000 samples from wildlife such as eastern chipmunks, gray squirrels, and raccoons.

Mary Van Beusekom

California healthcare industry had highest COVID-19 death rate of all occupations early in pandemic

"Other services," manufacturing, transportation, and retail trade also had higher death rates.

Mary Van Beusekom

Trial: Alternative COVID vaccine 75% cross-protective against symptomatic cases in previously infected

Effectiveness against symptomatic COVID-19 was 75% in previously infected participants and 31% among those never infected.

Mary Van Beusekom
COVID vax