Experts share best masking tips to protect against COVID-19 delta variant

As the more contagious delta variant sweeps through the country, medical experts have said good masking practices are key to slowing the spread.

The contagious delta variant has complicated the country's COVID-19 recovery, and health care experts are again suggesting Americans cover their faces. They're now advising all people, both unvaccinated and vaccinated, to wear marks in indoor and crowded settings. While the virus may have mutated, medical experts told ABC News people can wear the same masks they've used previously. "The delta variant has raised the stakes," Maureen Miller, an adjunct associate professor of epidemiology at Columbia University's Mailman School of Public Health, told ABC News. "The most important thing about the masks is that you wear them properly." Miller, a former epidemiologist for the New York City Health Department, said the N95 is the most secure mask to block out the virus and the variants, but due to higher prices and strained supplies, most people should consider other options, such as the cloth masks and surgical masks found in most stores.