Another of the patients attended a Feb. 28 event at The Village at Rockville, a retirement community. Health officials say 70 to 100 residents, visitors and staff at the event may be at risk for COVID-19. They are urging them to monitor for symptoms such as fever, cough or difficulty breathing until March 13. They should also take their temperature twice a day and notify their health care provider if it’s greater than 100.4 or they have other symptoms. Anyone who attended the Feb. 28 event is encouraged to contact their physician or the Maryland Emergency Management Agency call center at 410-517-3720.