Biogen Inc. has ordered all of its employees to work from home until further notice, as part of measures being implemented after employees who attended a Boston management meeting tested positive for the coronavirus that causes COVID-19.

In a statement, the company said it has informed all workers who attended the management meeting and are symptomatic that they will be contacted by the public health authorities to be tested and that they must self-quarantine.

“Additionally, these employees are being asked to isolate from the people they live with until further notice, and these close contacts must also be quarantined until further notice,” the company said in a statement.

There are 13 confirmed cases of the virus in Massachusetts, according to the Massachusetts Health Department, the majority of whom are connected to Biogen and the meeting it held late last month at a Marriott hotel. About 175 people attended the meeting, according to Endpoints News, including Chief Executive Michel Vounatsos.

Biogen’s global workforce are located in Massachusetts, Research Triangle Park, NC and Baar, Switzerland.