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

Respiratory virus activity is typical for the time of year compared to recent seasons. Rhinovirus was the predominant circulating respiratory virus in week 16. Detections of Respiratory Syncytial Virus (RSV) have decreased since week 1, and parainfluenza type 3 detections have increased since week 15. Detections of adenovirus, parainfluenza type 1, and parainfluenza type 2 were similar to recent weeks. Detections of human metapneumovirus have decreased since week 12.

Laboratory-Based Surveillance Rhinovirus

Laboratory-Based Surveillance Respiratory Adenovirus

Laboratory-Based Surveillance Human Metapneumovirus

Laboratory-Based Surveillance Parainfluenza




Updated: 04/25/2017