Cytome is short for "cytomegalovirus", which is a big word that means a type of virus that can make people sick. It's called "cytomegalovirus" because it affects cells in the body called "cytomegalic cells" which are bigger than normal cells.
The virus itself is tiny, so small that you can't see it even with your eyes, that's how small it is. The virus can live in different parts of the body, like in the lungs, liver, or even the brain.
If a person gets infected with cytomegalovirus, they might not feel any symptoms at all, or they might feel sick like they have the flu. Most people who get infected with this virus can recover just fine, but some people who have weaker immune systems, like babies or people who are sick, might have more serious problems.
Experts think that cytomegalovirus is spread by coming into contact with bodily fluids like saliva, blood, or breastmilk. That's why it's important to wash your hands regularly, especially when you're around someone who is sick with this virus, to avoid getting infected.