Here's what we know To examine possible viruses, researchers analyzed 35,000 water samples taken from all oceans throughout the world. Samples included plankton, which are known to carry RNA viruses.

Where a virus such as SARS-CoV-2 is made up of nearly 30,000 nucleotides —the basic building blocks of DNA and RNA— viroids only contain between 220 to 450 nucleotides.

A new study by researchers at Bar-Ilan University has uncovered that certain ocean viruses—specifically RNA viruses—may disrupt how carbon and nutrients are recycled in the ocean, potentially altering ...

Hepatitis D “virus” is a virus in name only. Underneath the hood, it more closely resembles viroids and virusoids: it is a small circular RNA that, due to high sequence complementarity, folds ...

The innate immune system is the body's first line of defence against pathogens like bacteria or viruses. TRIM25 is a protein that is important in the innate immune response against RNA viruses ...

Their study shows that RNA viruses can live in high-temperature environments (70℃-80℃), where no RNA viruses have been observed before. In addition to the two known RNA virus kingdoms, a third ...