The preventive measures put in place to contain COVID-19 infections likely affected the spread of other pathogens, such as norovirus, a highly infectious virus that causes diarrheal disease. Between 2020-2021, P95 collaborated with a large laboratory in Germany to assess the effect of COVID-19 containment measures on the presence of norovirus. Data from routine testing for norovirus were analyzed and reported at P95. Compared to 2018–2019, the proportion of norovirus-positive stool samples was significantly lower in 2020, hovering around 0% from May to December. This likely reflects the impact of COVID-19 containment measures adopted since March 2020.  

You can read the published manuscript here:

https://www.ncbi.nlm.nih.gov/pubmed/33581238