covid-19November 23, 2020 A man swallowed a battery. Why did it look like he was having a heart attack? Doctors were surprised that a single AA battery’s electrical properties mimicked a heart attack on an electrocardiogram. Related posts U.K.'s Johnson launches mass testing…Do you need a Covid-19…What's behind workers' hesitation to…Fully vaccinated people can travel…Younger Latino men are Covid's…Salmonella infections in eight states…Salmonella infections in eight states…The U.S. isn't losing to…Virus-killing robot tested for use…In Covid fight, Cuba touts…