Don't panic, I am just giving you a heads up, as I have prepared for this. I have antiviral surgical masks for drop shipping - kills 99.9% of viruses on contact.
Disclaimer - I am the main supplier in China. I have contacted doctors in GZ, HK, DG, BJ, and SH about this during the summer. And the US Govt stateside has already prepared. I have contacted the US Fed govt and the US Embassy about my product. (shameless plug for me and my suppliers, but healthcare is my job - former medic.)
Mask mechanism - zinc and copper ions kill viruses and bacteria. (can zinc suppliments? yes, check CDC for other uses.)