Some viruses are natural others are not.
How do you know if a virus is artificial? Well that's easy. You know because the jews on news make a big deal about how it's the hot new apocalyptic menace (be sure to take double the vaccines goy!) and generally hypes it when it's actually mostly harmless compared to more common things like the common cold which kills thousands every year.
>bird flu
>zika
>ebola
>AIDS
>SARS
>MSRA