Shelter at home, social distancing and wearing face masks are current health directives and very valid.
Improving your immune system is also a consensus. How to do so is not a consensus. Investigating science is the only measuring stick to decide.
Dr. Perlmutter: Boosting Your Immune System to Fight Coronavirus
On February 8, 2020 Dr. Joseph Dib initially posted the benefits of IV glutathione to help against Covid-19.
On March 16, 2020 Dr. Dib advocates IV glutathione as a treatment for Covid-19 patients.