What is norovirus? Norovirus is a highly contagious virus that causes gastroenteritis, which is an inflammation of the stomach and intestines. This inflammation leads to severe vomiting and diarrhea. Norovirus is often referred to as the "winter vomiting bug" because it is more common in colder months, although it can occur at any time of the year. Norovirus is a member of the Caliciviridae family of viruses. It has many different strains, which can make immunity to the virus shortlived and difficult to achieve. This means that even if someone has been infected with norovirus once, they can still get it again, possibly from a different strain. The virus is notorious for its ability to spread rapidly in places where people are in close contact, such as cruise ships, schools, hospitals, and nursing homes. This ease of transmission is due to its robust nature, allowing it to survive on surfaces for extended periods and its low infectious dose – it takes only a few viral particles to make someone sick.

⌛Timestamps:
⏱ Intro 00:00
Causes – 1:24
⚠ Symptoms – 02:54
Diagnosis – 04:51
Treatment – 5:35
Prevention – 08:08

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