Seroprevalence – News, Research and Analysis – The Conversation

Infection and vaccination both leave their mark in your blood. Yulia Reznikov/Moment via Getty Images

June 15, 2023

96.4% of Americans had COVID-19 antibodies in their blood by fall 2022

Matt Hitchings, University of Florida and Derek Cummings, University of Florida

There’s pretty much no one left in the US who hasn’t been exposed to the coronavirus, whether by vaccination, infection or both.

Researchers can test blood samples taken for other reasons to see if patients have previously had COVID-19. Don Bartletti/Los Angeles Times via Getty Images

May 6, 2022

COVID-19 official counts can miss mild cases – here’s how serosurveys that analyze blood for signs of past infection can help

Isobel Routledge, University of California, San Francisco

Your blood can hold a record of past illnesses. That information can reveal how many people have had a certain infection – like 58% of Americans having had COVID-19 by the end of February 2022.

March 20, 2022

Could I have had COVID and not realised it?

Ashwin Swaminathan, Australian National University

It feels like everyone around you has or is recovering from COVID. Maybe you’re fatigued and wondering if it’s an after-effect? Antibody tests could confirm it one way or another.

A sign in County Kildare, Ireland. in March 2020. Epidemiologists around the world worked hard to try to stop big parties in the face of rising caseloads of what would come to be called COVID-19. Niall Carson/PA Images via Getty Images

March 3, 2021

Two gaps to fill for the 2021-2022 winter wave of COVID-19 cases

Maciej F. Boni, Penn State

The US was not ready for the coronavirus pandemic in 2020. What can public health leaders and policymakers do to make sure we don’t face another winter of rampant disease?

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