Other Respiratory Viruses
View Previous YearsThe 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 – Week 15
For week 15 of 2025, RSV activity decreased slightly, with 0.5% (14/2635) of specimens testing positive. Rhinovirus/enterovirus activity increased during week 15 but remains lower than peak activity seen at the start of the season. Human metapneumovirus activity decreased slightly during week 15, with 5.6% (36/639) of specimens testing positive. Adenovirus and parainfluenza virus 1 and 2 activities remained low with levels similar to previous weeks. Parainfluenza virus 3 activity also remains low compared to this time during previous seasons but has been increasing since mid-March.
