Local businesses are still recovering from the powerful storm that swept through the region on Sunday, blacking out office spaces and causing some to close their doors for the day Monday. In Gaithersburg, biotech giant MedImmune LLC lost power to its main building on One MedImmune Way, and company officials do not expect it to be restored before Tuesday. About 800 of the companyâ¿¿s 1,500 employees, mostly in research and development, were affected, said spokeswoman Perla Copernik. â¿¿Basically, all areas of the main building are closed, except in one area where the lab is, because they have generators,â¿ she said. Business continues as usual in the companyâ¿¿s other buildings, Copernik said. Management has instituted a liberal leave policy today, because many cannot travel to work because of downed trees in the area. â¿¿I think weâ¿¿re hoping it will be back tomorrow, but employees have been told to check the emergency line tomorrow morning to see if things are operating normally,â¿ she said. In Bethesda, The Wellness Community sent an e-mail to its partners saying the facility would be closed Monday, citing the power outage. The nonprofit, which provides psychological and social support for cancer patients and their families, also said its electricity-powered phones were rendered inoperable by the storm. Montgomery County has dispatched updates saying every one of its recreation centers, as well as the Rockville campus of Montgomery College, are remaining closed Monday due to the outages. Four county libraries also continue to lack power and phone service and will not open as scheduled Monday: Kensington Park, Little Falls, Long Branch and Wheaton libraries. Even some of the region's largest health care providers weren't spared power issues in the last 24 hours. At about 8:45 p.m. Sunday, some of George Washington University Hospital's electrical circuitry and wiring failed, though hospital officials said they could not be certain the problems were caused by the storms.