In this picture, I am looking through the natural ‘window’ from a coastal cave. It was chilly outside, and we quite enjoyed our refuge from the elements.

A couple of days ago I went outside first time after a week in bed. It felt like leaving a cave.

Viruses, the tiny things that are not even technically alive, can cause a lot of trouble. The only criteria for being alive they fit in is that they can evolve over time. It is why we need to get a flu vaccine every year. Basically, a virus is a string of DNA (or RNA) wrapped in a protein coat. It doesn’t respond to any stimuli and doesn’t reproduce. It just is. At this stage it is called a virion. The horror story begins when such virion gets in contact with a cell – human, animal or bacterial. Viruses are parasites, they must have a host…