Prince George's County health officials say tests confirm that a norovirus infection sickened the 65 people who fell ill after attending a medical convention.
The illnesses were first noted when the Metropolitan Washington Airports Authority's fire department received calls for a dozen sick people at Reagan National Airport (web|news) last night. The 12 travelers had similar symptoms, including nausea, and all were planning to depart on flights from the airport.
Dozens of other people who became ill after attending the convention yesterday at the Gaylord National Resort and Convention Center in Oxon Hill, Maryland, came forward Friday.
Health officials say about 350 people attended the conference and all but one of the 65 people who became ill have returned to their homes around the country.
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