Could vitamin D be a secret weapon in helping to hold off a coronavirus infection?

KNXAM: On-Demand
Wednesday, April 1st
With a vaccine likely a year away and research on treatments for COVID-19 still in the early stages, are there simpler steps we could be taking to protect ourselves from being infected with coronavirus?

There just might be, and it's probably sitting in your medicine cabinet right now.

A heavy dose of vitamin D has shown some promise in holding off coronavirus.