Serious infection and SARS from Covid-19 presently has little specific treatment other than ventilator and oxygen, supportive care. We are urgently waiting for vaccination, immune care, antivirals, etc., to be made available for the masses. This was published in JAMA only two days ago, but things are evolving rapidly. Today, I am aware of three new articles, identifying the antiviral properties of chloroquine. I suggest that quinine is an even better agent than chloroquine, in malaria it has less resistance, has been tested and used extensively throughout the world, for more than a century, available ubiquitousl, and is inexpensive. It's safety, side-effects, and contraindications are widely know. It is over-the-counter, versus chloroquine generally requiring a doctor visit and an expensive prescription. Quinine is ubiquitously available as "tonic water" originally as prophylaxis and treatment for malaria. Perhaps this probable prophylactic and therapeutic antiviral agent can prevent the impending catastrophe. One glass of tonic water has about 100mg of quinine, which is a low dose. Not for patients on cardiac medications, side-effects, or complications. Is it time to notify the public that a little tonic water may be considered prudent at this time?