Alva Review-Courier -

A common virus blamed for a deadly outbreak at a New Jersey children's rehabilitation center usually poses little risk for healthy people but can lead to dangerous pneumonia in already frail patients.

The patients, most younger than 18, were infected by a germ called adenovirus 7, a strain that is among the more potent of these types of viruses. While it usually causes cold or flu-like symptoms, it can sometimes cause more serious respiratory illness, particularly in people with weak immune systems or who have lung conditions.

The patients at the New Jersey center were "medically fragile" acco...