World oceans are filled with previously unknown viruses

COVID-19 pandemic has been ongoing for ca. 1,5 years now. It started when a new RNA virus SARS-CoV-2 learned to reproduce in humans, and to efficiently transmit between different people. Furthermore, the pandemic has had several waves due to rapid evolution of the virus from the original form to ever increasing variants with more and more efficient transmission between people.

The pandemic underlined the dangers of new viruses. The human immune systems are not prepared for their attacks and neither has evolution prepared our genes to resist their effects. As a result, such a virus may be life threatening and kill millions and millions of people.

Therefore it was interesting to read about new research showing, that oceans of the world are full of unknown RNA viruses. And not only new versions of the kinds of virus types previously known, but completely unknown virus groups rooting in the earliest history of the life itself.

These new viruses are not causing diseases of humans, but mostly multiply in lower eukaryotes, bacteria and archaea. In doing that, these viruses affect evolution of their host organisms, affect marine community dynamics, speed up the cycles of matter in the biosphere and evolve themselves.

It remains to be seen, how the research described above affects practical human life. It is, however, clear that this piece of curiously driven science affects considerably the worldview of virologists and microbiologists and adds to their creativity towards new research projects. 

History has shown that such a cumulative increase of understanding is the basic value of the scientific inquiry. Any piece of new knowledge may ultimately lead to useful practical applications. And that has raised the western part of the world developmentally above rest of the human cultures.  

Previous thoughts on the same topic:
Soil subsides under cities, but every cloud has a silver lining
American black population more vulnerable to the Omicron variant of SARS-CoV-2