WASHINGTON -- There are 21 confirmed cases of swine flu in Maryland, state health officials said.
The number was reported on Thursday and is up from the four cases that had been confirmed earlier this week.
The Department of Health and Mental Hygiene also said the state public health laboratory has been approved to perform the tests that confirm swine flu.
The state is investigating two more probable cases.
Virginia health officials have confirmed three more cases of swine flu, bringing the state's total to 14. Two of the new cases reported Thursday were at Washington & Lee University, which has seven previously confirmed cases, according to university spokesman Jeff Hanna. The Arlington health district also confirmed its first case.
Other previously confirmed cases also include one in Norfolk, two in Chesterfield and one in the Three Rivers district, which includes the Northern Neck and the Middle Peninsula.
The Virginia Department of Health began posting the swine flu count on its Web site Thursday.
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One person in the District is recovering from the virus. There are also three probable cases, including an elementary school student.