There are many ways we can reduce the risk of COVID-19. Some of these methods, such as wearing face masks, practicing hand hygiene and distancing, staying outdoors and opening windows and doors when indoors are effective and low- or no-cost.
Below is a summary table of the best studies and research on COVID-19 prevention interventions compiled by Sophy S. Wong, MD, Director of East Bay Getting to Zero. Click here for a more detailed document with studies on the data and science behind COVID-19 harm reduction strategies frequently updated with primary sources.
We can use some or all of them in combination. We do the best we can with what we have and can do. The more strategies we use together, the more effective we can prevent the spread of COVID-19 and save lives.