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the claim
Norovirus causes about 19 to 21 million illnesses in the United States each year, according to the CDC.
the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 sources for · 1 against
Is it true that Norovirus causes about 19 to 21 million illnesses in the United States each year, according to the CDC?
Yes. Multiple peer-reviewed and CDC sources state that norovirus causes 19–21 million total illnesses per year in the United States, matching the claim's figure and attribution. A separate 2019 foodborne-illness estimate of about 5.5 million norovirus illnesses covers only the foodborne subset, not total illnesses.
Verdict: SUPPORTED · 3 sources for, 1 against · Last checked
Evidence for · 3
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Hall, A. J., Lopman, B. A., Payne, D. C., Patel, M. M., Gastañaduy, P. A., & Vinjé, J. (2013). Norovirus Disease in the United States. doi.org. https://doi.org/10.3201/eid1908.130465
2 recorded entries grouped as this source
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Norovirus Disease in the United States - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.3201/eid1908.130465
Evidence against · 1
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EJ, S. W., Z, C., R, T., PM, G., RM, H., DC, P., EB, R., C, D., AS, N., SA, M., AK, K., A, S., & BB, B. (2025). Foodborne Illness Acquired in the United States-Major Pathogens, 2019.. doi.org. https://doi.org/10.3201/eid3104.240913
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More for · 2
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Norovirus Facts and Stats | Norovirus | CDC. (n.d.). cdc.gov. https://www.cdc.gov/norovirus/data-research/index.html
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Physicochemical stability profile of Tulane virus: a human norovirus surrogate. (n.d.). cir.nii.ac.jp. https://doi.org/10.1111/jam.12878
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