A study by the CDC examining adults infected with COVID-19 concluded the vast majority wore face masks or coverings frequently in the weeks leading up to becoming ill.
"In the 14 days before illness onset, 71% of case-patients and 74% of control participants reported always using cloth face coverings or other mask types when in public," the report states.
14% of those surveyed said they wore face coverings "often," which means 85% of case-patients regularly donned masks.
On the other side of the mask-wearing spectrum, only 4% said they "rarely" or "never" wore them.
The study, published in September, confirms many reports released over the past few months showing wearing a face mask is ineffective at preventing COVID-19 infection and could even increase one's chances of contracting the illness.
U.S. Surgeon General Jerome Adams told Americans to "STOP BUYING MASKS," in a tweet released on February 29.
"They are NOT effective in preventing general public from catching coronavirus," the nation's top public health official explained.