The following is a timeline of the COVID-19 pandemic in Maryland.
Timeline
2020
January
In late January 2020, Maryland hospitals began travel screening for coronavirus when taking in new patients entering the emergency room. State health officials announced on January 30, 2020, that the first person tested in Maryland for the novel coronavirus did not have the virus. Fran Phillips, deputy state health secretary for public health services, stated that the risk for Maryland residents of contracting the virus remained low. Maryland medical facilities, educational institutions, and businesses disseminated guidance from the Centers for Disease Control and Prevention (CDC). Towson University stated that a professor would not return to classes while a family member was tested.
The University of Maryland, College Park and Towson University suspended their study abroad programs in Italy after increases in CDC alert levels. Towson suspended upcoming travel to Japan but did not suspend its current programs.
February
As of February 29, five people in Maryland had been tested for coronavirus, with the first two testing negative.
March
March 1–5
On March 5, Governor Larry Hogan confirmed the first three cases of coronavirus in Montgomery County: one married couple in their 70s and an unrelated woman in her 50s. All three patients were on the same river cruise on the Nile River in Egypt. Upon their return, one of the patients traveled to suburban Philadelphia, Pennsylvania, meeting with students. This prompted the Pennsylvania Department of Health and Central Bucks School District to temporarily close three schools in that district to undergo cleaning. Another patient visited The Village at Rockville retirement community for an event that had between 70 and 100 people. Attendees of the event were told to monitor their temperature and call their physician or the Maryland Emergency Management Agency if they began to exhibit symptoms. All three patients had fully recovered by March 12. Hogan declared a state of emergency after announcing the state's first positive tests.
Salisbury University suspended their study abroad programs in Italy and South Korea on March 5.
March 6–11
On March 8, Governor Hogan confirmed 2 new cases of coronavirus: 1 in Montgomery County, and 1 in Harford County.
The University of Maryland, College Park; University of Maryland, Baltimore County; Towson University; University of Maryland Eastern Shore; and Salisbury University all closed campuses early and moved to online classes after Spring Break.
March 12
By March 12, twelve cases of coronavirus had been confirmed in Maryland — two remained hospitalized and three had recovered. Importantly, Maryland confirmed the state's first known case of community transmission in a Prince George's County resident with no known exposure to coronavirus through travel or an infected individual. The first case of community transmission indicates that "we are entering a new phase of working to mitigate and limit the spread of this pandemic," reported Governor Hogan.
On March 12, Karen Salmon, Maryland's Superintendent of Schools, announced that all public schools would be closed for two weeks beginning March 16. Hogan raised the state's emergency activation system to activate the Maryland National Guard and banned gatherings of more than 250 people. Hogan suspended visits to state prisons and stipulated hospitals to implement policies to limit visitors. Employees of the Government of Maryland were ordered to remote work if they were able to do so. The National Guard was activated to a higher state of readiness. Hogan delegated routine state government operations to Lieutenant Governor Boyd Rutherford so he could allocate more time to combating the virus.