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Human metapneumovirus (hMPV) is a newly described respiratory virus that was initially recognized in children with respiratory symptoms similar to RSV bronchiolitis. In temperate climates, hMPV predominates in the winter season and currently is believed to cause fewer infections and less severe disease than RSV. The incidence of hMPV pneumonia in adults is unknown, although it has been implicated in serious respiratory infections in transplant patients and the elderly. Due to the length of time required to detect hMPV, respiratory viral cultures are impractical for diagnostic purposes. PCR testing for hMPV on bronchoscopy specimens is available through a reference laboratory. |
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