Norovirus – Russia

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August 8, 2021 – Suspected case of norovirus reported in 87 children in Russia. All children were hospitalized in Kuban. No deaths recorded. The groups of reported cases consisted of the following: 67 in Tuapse CRH #1, 12 in Apsheronskaya, and 8 in Belorechenskaya.

The source claims that it is suspected that the norovirus originated from a case of poisoning (likely food) from a meal that the children consumed while riding on the Murmansk-Adler train. The source also suspects the "poisoning" to be intentional. The employee responsible for the food car on the train has been place in temporary suspension while the case investigation is underway.

The children presented with symptoms related to intestinal infection. Though the source does not mention the specific symptoms reported, the following is likely to have occurred approximately 1-2 days after infection: diarrhea and vomiting. According to the source, the following symptoms may also manifest after initial infection: muscle aches, headaches, and weakness. The virus resolves on its own after approximately 1 to 3 weeks. Reinfection is possible after a period of immunity.

Photo: Norovirus particles electron micrograph.

Norovirus, sometimes referred to as the winter vomiting bug, is the most common cause of gastroenteritis.

Infection is characterized by non-bloody diarrhea, vomiting, and stomach pain. Fever or headaches may also occur. Symptoms usually develop 12 to 48 hours after being exposed, and recovery typically occurs within 1 to 3 days.

This may be through contaminated food or water or person-to-person contact. Risk factors include unsanitary food preparation and sharing close quarters.

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