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 4 of 2020, respiratory syncytial virus (RSV) and rhinovirus were the predominant circulating non-influenza respiratory viruses, with approximately 9% of tested specimens positive for RSV and 9% positive for rhinovirus. Over the course of the past few weeks, RSV activity has decreased along with rhinovirus activity in trends similar to recent seasons. Human metapneumovirus detections also continue to decrease after an early peak at the start of 2020. Parainfluenza virus and adenovirus detections have been consistent with trends in recent years.

Laboratory-Based Surveillance Rhinovirus

Laboratory-Based Surveillance Respiratory Adenovirus

Laboratory-Based Surveillance Human Metapneumovirus

Laboratory-Based Surveillance Parainfluenza




Updated: 01/31/2020