These are photos of the actual COVID-19 virus. In these photos, the virus is emerging from an infected cell. Eventually to spread and infect other cells. A virus enters a healthy cell and highjacks it with instructions to replicate more virions. They cannot replicate on their own. They need the inner workings inside a host cell. It's really diabolical.
Fortunately, our immune system has mechanisms to combat this. This includes killer cells that eat infected cells, the ability to create antibodies to identify the virus, and other mechanisms.
I have read with this virus you can get re-infected which is usually not the case with viruses. But it is still early,.. on what we know about this one.