Small viruses have diameters in the range of several tens of nanometers. Bacteria are generally larger, some by a factor of 100, and the increased size leads to increased complexity. Viruses exist ...

The human microbiome is made up of trillions of microscopic organisms that live inside and on the body—including viruses, fungi, parasites, and bacteria like Streptococcus pneumoniae, shown here ...

Explore the growing importance of culture banks in global life sciences research, supporting innovation, and scientific ...

Two newly discovered viruses lurking in bats are dangerously similar to Nipah and Hendra, both of which have caused deadly ...