asymptomatic

This colorized transmission electron micrograph of a human white blood cell (bottom) shows the HLA antigen — the uneven red areas on the cell's exterior surface. A variant of the HLA gene could play a role in warding off COVID symptoms.

Health & Safety

You know those folks who had COVID but no symptoms? A new study offers an explanation

3:14pm July 20, 2023

Everybody knows someone — maybe it's you — who got COVID but never got sick or who thinks they never got COVID at all. A new study found one possible reason, involving a certain gene and common colds.

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Science writer Robin Marantz Henig has written about dangerous emerging pathogens for 30 years. But none of what she learned could shed light on her own confusing encounter with the coronavirus.

I Felt Fine, But Tested Positive For The Coronavirus. What's That Really Mean?

12:24pm December 18, 2020

by Robin Marantz Henig

Science writer Robin Marantz Henig has written about dangerous emerging pathogens for 30 years. But none of what she learned could shed light on her own confusing encounter with this virus.

'Disease tolerance' is the ability of an individual, due to a genetic predisposition or some aspect of behavior or lifestyle, to thrive despite being infected with an amount of pathogen that sickens others. It might play a role in asymptomatic coronavirus

Scientists Explore Why Some People Are Able To Live With An Infection Unscathed

6:00am August 29, 2020

by Emily Laber-Warren

What if your body could corral an infection instead of eliminating it? Immunologists who see this sort of "disease tolerance" in plants wonder what role it might play in asymptomatic human infections.

Essential Vocab For COVID-19: From Asymptomatic To Zoonotic

7:00am June 27, 2020

The pandemic has brought many new terms into daily usage. Here are definitions of some of the words used in discussion of the novel coronavirus and how to stem its spread.

A CT scan of the chest of a 66-year-old male reveals patchy rounded hazy spots throughout the lungs. He had tested positive for the coronavirus and experienced shortness of breath.

Health & Safety

We Still Don't Fully Understand The Label 'Asymptomatic'

12:55pm June 23, 2020

by Pien Huang

A new study reveals that even patients who are reportedly asymptomatic — no fever, cough, fatigue or breathing issues — could sustain temporary lung damage from the novel coronavirus.