Introduction: Norovirus infections are common in the USA and worldwide. Detection of norovirus in fecal samples is now common in routine tests for enteric pathogens using molecular methods. We observed a change in positivity rates for norovirus after the beginning of the coronavirus disease 2019 (COVID-19) pandemic in our laboratory and performed a more detailed analysis of testing results.
Methods: We reviewed the positivity rates for detection of common enteric pathogens from stool samples submitted to an academic medical center laboratory pre (2016-2019) and post the start of the COVID-19 pandemic (2020).
Results: In contrast to other enteric pathogens, norovirus positivity rates dropped dramatically from a yearly average of 3.9% in 2016-2019 to 0.76% from March 2020 through the end of 2020.
Conclusion: A sustained reduction in norovirus positivity rates was temporally associated with COVID-19 mitigation processes in the Philadelphia area, while positivity rates for other common enteric pathogens were only intermittently reduced.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8197782 | PMC |
| http://dx.doi.org/10.1007/s40121-021-00473-z | DOI Listing |
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