NRVSSNew River Valley Senior Services (Virginia)
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References in periodicals archive ?
From July 1989 through June 1990, 71 NRVSS laboratories in 45 states tested 52,496 specimens for RSV; of these, 11,884 (23%) were positive.
During the same period, 38 NRVSS laboratories tested 33,060 specimens for parainfluenza viruses.
Participating NRVSS laboratories will report the number of respiratory viruses detected each week by telephone through a computer polling service.