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Norovirus describes a collection of around fifty strains of virus that all lead to one uncomfortable outcome: copious time spent in bathroom. Every year, an estimated 684 million people worldwide fall ill with it.

Norovirus is a type of viral gastroenteritis, which is “an inflammation of the bowel and the large intestine that triggers loose stools” and vomiting, as explained by an infectious disease physician.

Although it can spread throughout the year, it is often called the nickname “winter vomiting bug” since its activity surge between late fall and early spring across the northern hemisphere.

The following covers key information to know.

How Does Norovirus Spread?

Norovirus is highly transmissible. Most often, it enters the gastrointestinal tract via microscopic virus particles originating in a sick individual's saliva and/or stool. This matter may end up on surfaces, or in food or drink, eventually into the mouth – “termed fecal-oral transmission”.

The virus can stay viable for about two weeks upon objects such as doorknobs and bathroom fixtures, requiring an extremely small exposure to make you sick. “The amount needed to infect for this virus is under 20 virus particles.” For example, other viruses like Covid-19 typically need roughly 100-400 particles to infect. “During infection, has an active the illness, they shed billions of the virus in every gram of stool.”

There is also some risk of spread through particles in the air, notably if you’re around an individual while they are suffering from symptoms such as diarrhea or vomiting.

Norovirus becomes infectious about 48 hours prior to the start of illness, and individuals can remain infectious for days or sometimes weeks after they recover.

Close quarters such as nursing homes, childcare centers and airports form a “ideal breeding ground for acquiring infection”. Cruise ships have a notorious history: health authorities note numerous outbreaks on ships each year.

Tell-Tale the Symptoms of Norovirus?

The start of symptoms can feel rapid, starting with abdominal cramping, sweating, chills, nausea, vomiting along with “severe diarrhoea”. The majority of infections are considered “mild” in the medical sense, meaning they clear up within 72 hours.

That said, it’s an extremely debilitating sickness. “Those affected may feel quite exhausted; experiencing a low-grade fever, headache. In many instances, people cannot perform their normal activities.”

When is Medical Care for Norovirus?

Annually, the virus leads to hundreds of deaths and many thousands hospital stays nationally, where people aged 65 and older facing the highest risk level. Those most likely of experiencing serious infections include “young children less than 5 years old, along with older individuals and those who are immunocompromised”.

People in these vulnerable age groups are also particularly susceptible to kidney problems due to severe fluid loss caused by severe diarrhea. If you or loved one falls into a vulnerable age category and unable to keep down liquids, medical advice suggests seeing your doctor or visiting urgent care to receive fluids via IV.

The vast majority of adults and kids with no chronic health issues recover from norovirus without doctor visits. Although authorities report thousands of norovirus outbreaks annually, the true number of cases is closer to millions – most cases go unreported because individuals can “handle their illness at home”.

While there’s nothing you can do to shorten the length of a bout of norovirus, it is crucial to stay well-hydrated the entire time. “Consume an equivalent volume of electrolyte solutions or water as that comes out.” “Crushed ice, ice lollies – essentially anything that can be tolerated to maintain hydration.”

Anti-nausea medication – a drug that prevents queasiness and vomiting – such as certain over-the-counter options may be needed if you cannot retain fluids. It is important not to, take medications that stop diarrhea, including loperamide or bismuth subsalicylate. “Our body attempts to expel the virus, and if we keep it inside … the illness lasts for longer periods of time.”

How Can You Avoid Catching Norovirus?

Currently, we don’t have a norovirus vaccine. The reason is the virus is “very challenging” to grow and research in labs. The virus has many strains, mutating often, making broad protection challenging.

This makes the basics.

Practice Thorough Handwashing:

“To prevent or control infections, good handwashing is vital for everyone.” “Importantly, sick people must not prepare or handle food, or care for others while sick.”

Hand sanitizer and other alcohol-based disinfectants do not work on norovirus, due to how the virus is structured. “While you may use hand sanitizers in addition to handwashing, sanitizer alone alone does not work well against norovirus and is not a substitute for washing with soap.”

Clean hands often well, with good-quality soap, for a minimum of 20 seconds.

Avoid Using an Infected Person's Bathroom:

If possible, set aside a different restroom for any sick person in your household until after they are better, and minimize other contact, is the advice.

Disinfect Contaminated Surfaces:

Clean surfaces with a bleach solution (one cup per gallon water) alternatively full-strength 3% hydrogen peroxide, which {can kill|