Bryan Johnson tweeted his wife's vaginal microbiome test results. We spoke to OBGYNs and longevity advocates about what that ...

As medical students face the 2026 microbiology exam cycle, the focus has shifted from memorizing isolated bacterial facts to recognizing high-yield lab patterns and understanding the mechanistic ...

TB tests use phlegm — not the easiest thing to get or work with. It takes time for results. And there can be false negatives and positives. A new test is more accurate and takes less than half an hour ...

A breakthrough in microbiome research could change how colorectal cancer is detected—no colonoscopy required. Scientists used AI to map gut bacteria at an unprecedented level of detail, revealing ...

We’re flush with drugs — but they’ve lost their edge. An antibiotic-resistant superbug responsible for bad diarrhea and fever symptoms has been on the rise in the US since at least 2023, according to ...

Scientists have uncovered a surprising twist in how bacteria share genes—including those that spread antibiotic resistance. Tiny virus-like particles called gene transfer agents (GTAs), once ancient ...

At-home gut health tests use DNA or RNA sequencing from a stool sample. Testing your gut health cannot replace an official diagnosis from a doctor. Your results may provide insights into gut ...

This Nature Outlook is editorially independent, produced with financial support from Yakult. About this content. We are not alone in our bodies. Each person is home to trillions of bacteria, viruses ...