Two people have died and 18 others have been hospitalized after a “respiratory outbreak” at a Virginia retirement community, according to officials.

The Fairfax County Department of Health said that 54 individuals had become ill with “respiratory symptoms ranging from upper respiratory symptoms (cough) to pneumonia” in the last 11 days at Greenspring Retirement Community in Springfield.

In a letter Wednesday to residents obtained by ABC News affiliate WJLA-TV in Washington DC, Greenspring described symptoms as “fever, cough, body aches, wheezing, hoarseness and general weakness.”

Benjamin Schwartz, a health department director, told ABC News on Thursday that the outbreak had been reported in theĀ assisted-living and skilled-nursing sections. He said the outbreak began with the first case on June 30.

The specific cause of the outbreak had not yet been identified but additional tests of samples were being done, according to Schwartz.

Read moreĀ at abcnews.go.com