ArticleInfectious diseases and therapy2021
Reduction in Sporadic Norovirus Infections Following the Start of the COVID-19 Pandemic, 2019-2020, Philadelphia.
Article in Infectious diseases and therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 23 citations in OpenAlex.
- Trends in Norovirus Genotypes in South Korea, 2019-2024: Insights from Nationwide Dual Typing Surveillance.Viruses · 2025Article
- Global Impact of COVID-19 Pandemic on Gastrointestinal Infections: A Scoping Review.Foodborne pathogens and disease · 2025Article
- Long-Term Surveillance of Food Products of Diverse Origins: A Five-Year Survey of Hepatitis A and Norovirus in Greece, 2019-2024.Pathogens (Basel, Switzerland) · 2025Article
- The GBD 2021 perspective: COVID-19's impact on diarrheal mortality and etiological trends, 1990-2021.Frontiers in cellular and infection microbiology · 2025Article
- Wastewater-based epidemiology for monitoring enteric viruses: a case study in Valladolid, Spain (2020-2021).Frontiers in microbiology · 2025Article
- Impact of non-pharmaceutical interventions during the COVID-19 pandemic on pathogens transmitted via food in the Netherlands.Epidemiology and infection · 2024Article
- An unusual diarrheal outbreak in the community in Eastern Thailand caused by Norovirus GII.3[P25].Virology journal · 2024Article
- Detection rates of norovirus gastroenteritis and factors associated with the infection before and during COVID-19 pandemic: a secondary analysis of surveillance data in Guangxi Zhuang Autonomous Region, Southern China.Infection ecology & epidemiology · 2023Article
- Machine learning forecasting for COVID-19 pandemic-associated effects on paediatric respiratory infections.Archives of disease in childhood · 2022Article
- Epidemiology, Clinical Features, and Unusual Complications of Norovirus Infection in Taiwan: What We Know after Rotavirus Vaccines.Pathogens (Basel, Switzerland) · 2022Review
- Article
- Food Safety and Employee Health Implications of COVID-19: A Review.Journal of food protection · 2021Review
- Detailed analysis of enteric pathogen incidence associated with COVID-19 mitigation behaviors informs upcoming clinical and policy decision making.The Lancet regional health. Western Pacific · 2021Article
- The Rise in Norovirus-Related Acute Gastroenteritis During the Fight Against the COVID-19 Pandemic in Southern China.Frontiers in public health · 2021Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionNorovirus 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.
methodsWe 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).
resultsIn 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.
conclusionA 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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