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Other Respiratory Viruses

View Previous Years

The following graphs depict the aggregate results of PDPH's respiratory virus surveillance. Care should be taken with the interpretation of these results. These summaries display the provisional, year-to-date counts (or, in some cases, percentage positivity) of respiratory viruses by week of report. Comparable data for preceding years are shown as well. All surveillance data are preliminary and are not intended for further distribution.

Activity Summary

For week 1 of 2022, rhinovirus remained the predominant circulating non-influenza respiratory virus, with approximately 8% of tested specimens positive for rhinovirus. Rhinovirus precents are similar to previous seasons this time of year. RSV activity has decreased this week and is currently circulating at lower levels to previous seasons before the COVID-19 pandemic. Parainfluenza virus 3 activity has continued to circulate at higher levels than previously seen. Parainfluenza virus 2 activity has plateaued this week and is at levels seen as previous years. Parainfluenza virus 1 activity remains low. Adenovirus and Human metapneumovirus activity have increased this week. Note: Data for 5 of the 6 sentinel laboratories have been reported. Data will be further updated once additional data is received.

Laboratory-Based Surveillance for RSV

Laboratory-Based Surveillance for Rhinovirus

Laboratory-Based Surveillance for Respiratory Adenovirus

Laboratory-Based Surveillance for Human Metapneumovirus

Laboratory-Based Surveillance for Parainfluenza