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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.
For week 46 of 2024, Rhinovirus/Enterovirus was the predominant circulating non-influenza respiratory virus, with 22% (163/739) of specimens testing positive. This level is similar to previous weeks. Human metapneumovirus, adenovirus, and parainfluenza virus activity remained low with levels similar to previous weeks. RSV activity increased during week 46, with 6.7% (165/2456) of specimens testing positive. Consistent increases over the past four weeks likely signify the start of the new season. RSV activity is expected to further increase in the coming weeks.