County says COVID-19 outbreaks such as one at Strosniders are generally low-risk Bethesda store temporarily closed after about a dozen employees tested positive By Dan Schere | Logo from Strosniders Hardware's Facebook page Montgomery County health officials say outbreaks of COVID-19 such as one among employees at Strosniders Hardware’s Bethesda store generally aren’t dangerous, but people should still take them seriously. As of Monday evening, about a dozen employees had tested positive for COVID-19, and the outbreak was reported to the county on Tuesday. Bill Hart III, one of the owners, could not immediately be reached for comment Tuesday afternoon. Claire Peterson, a spokeswoman for the store, wrote in an email Tuesday afternoon that she did not know if more employees tested positive.