A news study finds that hamsters with long COVID show persistent brainstem infection, depression-like behaviour, and gene changes linked to neurodegeneration, offering clues to human neurological symptoms.

ByTom Axwell

## Long COVID and Hamsters? What This Could Mean for Us

Okay, I stumbled across something pretty interesting (and maybe a little concerning) today, and I had to share.

It’s about Long COVID… and hamsters.

Yep, you read that right. Scientists have been studying hamsters with Long COVID, and the findings are a bit of a wake-up call.

**So, what did they find?**

Basically, these little guys showed some pretty significant issues, including:

* **Brainstem Infection:** The virus stuck around in their brainstems. Not good.
* **Depression-like Behavior:** This points to some serious neurological impacts.
* **Gene Changes:** Changes linked to neurodegeneration. That’s a scary phrase.

The study, which you can find [here](https://www.nature.com/articles/s41467-025-62048-7), suggests these findings in hamsters could provide clues to the neurological symptoms that humans experience with Long COVID.

**Why should we care about hamsters?**

I know, hamsters might seem like an odd choice. But here’s the thing: animal studies are often crucial for understanding how diseases work and for developing potential treatments. If hamsters with Long COVID are showing these neurological issues, it raises some serious questions about what might be happening in humans too.

Think about all the reports of brain fog, fatigue, and even mood changes people are experiencing after COVID. This hamster study suggests there might be a biological reason behind those symptoms. It’s not just “all in their head.”

**What does this mean for the future?**

Well, it’s not all doom and gloom. This research could pave the way for better treatments and a deeper understanding of Long COVID. The more we understand *why* these symptoms are happening, the better equipped we’ll be to find solutions.

Hopefully, this will lead to more targeted therapies that can address the neurological impacts of Long COVID.

**My takeaway?**

Long COVID is a complex issue, and we’re still learning a lot. This hamster study, while a bit unexpected, provides valuable insights into the potential neurological impacts of the virus. It’s a reminder that we need to continue researching and supporting those who are struggling with Long COVID.

And maybe give your hamster an extra carrot. Just in case.

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