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“Symptoms usually develop within 12-48 hours after being exposed,” she explains. How long do symptoms last? They peak at 24 to 48 hours but can last up to 72 hours, says Dr. Dibba.
Rotavirus is the most common cause of gastroenteritis in children, [25] and produces similar rates in both the developed and developing world. [20] Viruses cause about 70% of episodes of infectious diarrhea in the pediatric age group. [13] Rotavirus is a less common cause in adults due to acquired immunity. [27]
The main symptom of gastroenteritis is diarrhea. Other symptoms may include: [citation needed] Abdominal pain or cramping; Nausea; Vomiting; Low grade fever; Because of the symptoms of vomiting and diarrhea, people who have gastroenteritis can become dehydrated quickly. It is very important to watch for signs of dehydration. [1]
Groups 1, 2, 3, and 4 last shared a common ancestor in AD 867. [45] The group 2 and group 4 viruses last shared a common ancestor in approximately AD 1443 (95% highest posterior density AD 1336–1542). [46] Several estimates of the evolution rate have been made varying from 8.98 × 10 −3 to 2.03 × 10 −3 substitutions per site per year.
Noroviruses are a group of viruses that cause acute gastroenteritis, or an inflammation of the lining of the stomach and intestines, which leads to nausea, vomiting, diarrhea and stomach cramps ...
[1] [2] Together with norovirus, sapoviruses are the most common cause of acute gastroenteritis (commonly called the "stomach flu" although it is not related to influenza) in humans and animals. [3] [4] It is a monotypic taxon containing only one species, the Sapporo virus. [5] Natural hosts for the virus are humans and swine.