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The norovirus describes a collection of around fifty strains of virus that all lead to one uncomfortable result: significant time spent in bathroom. Annually, some hundreds of millions people across the globe are infected by the virus.

Norovirus is a form of viral stomach flu, essentially “an inflammation of the intestines and the large intestine that often leads to loose stools” and nausea and vomiting, as explained by a medical expert.

While it circulates in all seasons, it is often called the nickname “winter vomiting illness” due to the fact its activity surge between late fall and February across the northern hemisphere.

Here is what you need to understand.

How Does Norovirus Propagate?

Norovirus is exceptionally infectious. Typically, the virus invades the gastrointestinal tract through tiny virus particles from a sick individual's saliva or feces. These particles can land on your hands, or in food and beverages, eventually in your mouth – “what we call fecal-oral transmission”.

The virus remain active for about a fortnight upon non-porous surfaces like doorknobs and toilets, with only a minuscule amount for infection. “The required exposure of noroviruses is less than 20 virus particles.” By contrast, other viruses like Covid-19 require about 100-400 virus particles to infect. “When a person, is suffering from norovirus infection, there’s billions of particles in every gram of feces.”

There is also the possibility of transmission via particles in the air, notably if you’re near someone when they are experiencing active symptoms such as diarrhea and/or vomiting.

A person becomes contagious roughly 48 hours prior to the beginning of symptoms, and individuals can remain contagious for several days or sometimes a few weeks after symptoms subside.

Close quarters like eldercare facilities, daycares as well as travel hubs form a “ideal breeding ground for catching the infection”. Ocean liners are especially notorious history: health authorities note multiple outbreaks on ships each year.

What Are Signs of Norovirus?

The start of symptoms often seems abrupt, initially involving abdominal cramping, perspiration, chills, queasiness, vomiting along with “severe diarrhoea”. The majority of infections are considered “mild” from a medical standpoint, meaning they resolve in under 72 hours.

That said, this is a very debilitating sickness. “People may feel pretty exhausted; experiencing a low-grade fever, headache. In many instances, individuals are unable to continue doing daily tasks.”

When is Medical Care for Norovirus?

Annually, norovirus causes several hundred deaths and tens of thousands hospital stays nationally, where individuals aged 65 and older at greatest risk. The groups at greatest risk of experiencing serious infections include “young children less than five years of age, and particularly older individuals and those who are immunocompromised”.

Those in these vulnerable age categories are also especially susceptible to renal issues because of dehydration caused by excessive diarrhea. Should a person or a family member is in a vulnerable age category and cannot retain liquids, medical advice suggests consulting a physician or going to urgent care for IV fluids.

Most healthy adults and kids with no chronic health issues recover from norovirus without doctor visits. While health agencies track thousands of outbreaks each year, the actual figure of infections is estimated at many millions – most cases go unreported because individuals are able to “manage their illness at home”.

While there’s nothing you can do to reduce the length of a bout with norovirus, it’s essential to remain hydrated the entire time. “Consume the same amount of fluids like electrolyte solutions or plain water as that comes out.” “Crushed ice, popsicles – essentially anything you can keep down to maintain hydration.”

An antiemetic – medication that reduces queasiness and vomiting – such as certain over-the-counter options may be required if you cannot keep liquids down. Do not, however, use medicines for stopping diarrhea, like Imodium or Pepto-Bismol. “The body attempts to get rid of the virus, and if we keep it within … the illness lasts longer.”

What are Ways to Avoid Catching Norovirus?

Right now, there is no a norovirus vaccine. This is due to the fact norovirus is “very challenging” to culture and study in labs. It has many strains, which mutate rapidly, making a single vaccine challenging.

That leaves fundamental hygiene.

Wash Your Hands:

“For preventing and controlling infections, proper hand hygiene is important for all.” “Critically, sick people must not prepare or handle food, or care for others while sick.”

Alcohol-based hand rub and similar sanitizers do not work against norovirus, because of how the virus is structured. “You can use sanitizer along with handwashing, sanitizer alone does not kill norovirus against it and cannot serve as a substitute for handwashing.”

Clean hands frequently and thoroughly, using good-quality soap, for a minimum of twenty seconds.

Avoid Using a Sick Person's Bathroom:

If possible, designate a separate bathroom for any ill individual in your household until they are better, and limit other contact, is the advice.

Disinfect Contaminated Surfaces:

Disinfect surfaces using a bleach solution (one cup per gallon of water) alternatively undiluted 3% hydrogen peroxide, both of which {can kill|