evidence: The CDC says surpassing 100,000 deaths is a "sobering development and a heart-breaking reminder of the horrible toll of this unprecedented pandemic." It asks that Americans continue following local and state guidance on prevention strategies, such as social distancing, good hand hygiene, and wearing a face mask while in public. [...] Still a presidential nominee, Joe Biden calls on all governors to require their citizens to wear masks anytime they go out in public through November, and he claims he will mandate the practice if elected. At this point, there are a reported 165,000 deaths from COVID-19, and the measure is estimated to save 40,000 lives in the coming months. At this point, mask mandates still vary greatly among the states and regions. [...] A study published in Morbidity and Mortality Weekly Report finds that people who recently tested positive for COVID-19 were 2.4 times more likely to have dined out. The study considered restaurant dining to include being seated at a patio, being seated outdoors, and being seated indoors. The odds jumped almost 4-fold for participants who had been to a bar or café. The majority of participants (71%) claimed to have worn masks in the 2 weeks before their diagnosis.