[redpoint5]

I started watching videos from Dr. John Campbell on Youtube.

There appears to be 2 strains of the virus, and China mostly contained one type, while the rest of the world was infected by the other. It's unclear if immunity to 1 type can provide a defense against the other type, so we could potentially see a 2nd wave of infection related to the 2nd type being introduced. A vaccine would likely be developed to immunize against both types.