Bird Flu Virus H5N1
Public Enemy #1 - How many millions will succumb?
Do NOT sleep with your chickens. This is #1 way it is currently passed to humans.
Human coronaviruses measure between .1 and .2 microns. Even a N95 Mask offers limited protection. To efficiently protect yourself from coronaviruses, you would need to wear a full-faced mask with a high-efficiency particle air filter.
File photograph is what the virus looked like in 1918. It could have reengineered its appearance or be wearing a disguise.
Trust no one!