Question

How would one best explain a virus's means of replication?

Answer 1

Virus injects genetic material into uninfected cell -> Infected cell instead of doing normal job, starts producing viruses from injected genetic material -> Infected cell literally bursts open, releasing new viruses (process repeats).

Explanation:

By disrupting how the cells work and destroying them, this gives us the sensation of feeling unwell.

Hope this basic summary helps.
-C. Palmer