Here’s a question from a reader: What’s the difference between viruses and bacteria? Bacteria and viruses are often lumped ...

These first microbes would have been extremely simple. But were they viruses or bacteria? Scientists don't have a conclusive ...

Although bacteria and viruses are both too small to be seen without a microscope, they're as different as giraffes and goldfish. Bacteria are relatively complex, single-celled creatures ...

My colleagues and I published a study showing how an immune system protein crucial to fighting against viruses also plays an indispensable role in fighting bacteria. How viral and bacterial ...

So is it time to add viruses to one's microbiome-feeding regimen of probiotics and prebiotics, synbiotics (which combine the ...

This suggests that viruses could help bacteria adapt and coevolve to survive in nutrient-depleted man-made environments. Discover the latest in science, tech, and space with over 100,000 ...

Now, researchers have found that a family of related proteins is used to fight viruses in organisms ranging from bacteria to humans. While the effects it triggers vary among organisms, it appears ...

Viruses in man-made environments cause public health concerns, but they are generally less studied than bacteria. A recent study led by environmental scientists from City University of Hong Kong ...

They found that centenarians have more diverse bacteria and viruses in their gut than their younger counterparts. The findings indicate that improving gut bacteria and virus diversity could ...

These first microbes would have been extremely simple. Meanwhile, viruses degrade more easily than bacteria, so there are no physical fossils of viruses. Related: What was the first animal on Earth?