Strep throat, flu, RSV: What’s behind recent strange patterns of common childhood illnesses?

Credit: Getty Images
Credit: Getty Images

Epidemiologists continue to investigate whether Covid-19 lockdowns increased the likelihood of surges in other diseases, given that respiratory infections were more or less stopped in their tracks during the first year or so of the pandemic. There is also the possibility that catching Covid-19 has increased children’s susceptibility to other diseases by harming their immune systems somehow – though doctors say this is unlikely, as there is no evidence for such an effect. But what exactly is going on?

Follow the latest news and policy debates on sustainable agriculture, biomedicine, and other ‘disruptive’ innovations. Subscribe to our newsletter.

There’s a “pretty good argument” behind the idea that infections like this are spiking as a kind of delayed impact of the Covid-19 lockdowns, [pediatrician Ronny Cheung] suggests. But it is difficult to unpick that from natural seasonal variability.

While our view of what’s going on is getting sharper, many unanswered questions remain, including whether Covid-19 infection has actually affected children’s immune systems in such a way that they are less able to fight off RSV, strep A, flu and other pathogens.

“We haven’t seen any data to support that prior Covid infection decreases your immunity and that you will get a more severe subsequent infection of any other virus or even bacteria,” says [pediatrician Rabia] Agha.

This is an excerpt. Read the full article here

{{ reviewsTotal }}{{ options.labels.singularReviewCountLabel }}
{{ reviewsTotal }}{{ options.labels.pluralReviewCountLabel }}
{{ options.labels.newReviewButton }}
{{ userData.canReview.message }}

Related Articles

Infographic: Global regulatory and health research agencies on whether glyphosate causes cancer

Infographic: Global regulatory and health research agencies on whether glyphosate causes cancer

Does glyphosate—the world's most heavily-used herbicide—pose serious harm to humans? Is it carcinogenic? Those issues are of both legal and ...

Most Popular

Screenshot 2025-08-25 203032
Mazzenga’s 20-year old muscles: How a still-going-strong 92-year old sprinter wins every race she enters
Screenshot-2026-06-08-at-10.19.30-AM
‘Natural’ wellness supplements linked to liver injury
global warming
‘Implausible’: Top climate scientists reject worst-case scenario—soaring temperatures and fast-rising sea levels
Screen Shot at AM
Facts & Fallacies Podcast: Right-wing politics bad for your health? Separating speculation from science
Screenshot-2026-06-05-at-2.12.30-PM
Some plants can poison you. So how did humans figure out what is safe to eat?
Screenshot-2026-06-05-at-1.44.09-PM
Viewpoint: Scientists have scrapped the worst-case climate scenario. Is that proof that climate change is a hoax, as Trump claims?
ChatGPT-Image-May-28-2026-12_56_54-PM
Viewpoint: Vaccines' non-specific effects? The ‘shoddy’ Danish couple whose 'research’ inspires RFK, Jr.’s health delusion
Credit: ACSH
Viewpoint: Who and what’s to blame for the surge in vaccine-preventable diseases?
ChatGPT-Image-Jun-9-2026-03_24_05-PM
Misinformed parents overdosing children with Vitamin A to fight measles
Screenshot 2025-07-30 at 10.48
Can gene editing eliminate Down syndrome? Scientists have done it in lab-grown cells
ChatGPT-Image-Jun-9-2026-11_54_59-AM
Why weight-loss drugs might be reducing cancer rates and making treatment more effective
ChatGPT-Image-Mar-10-2026-01_39_01-PM
Viewpoint—“Miracle molecule” debunked: Why acemannan supplements don’t work
ChatGPT-Image-Jun-9-2026-12_30_14-PM
The ‘low-quality’, retracted studies RFK, Jr. and MAHA rely on for anti-vaccine claims
glp menu logo outlined

Get news on human & agricultural genetics and biotechnology delivered to your inbox.