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The norovirus describes a collection of about 50 strains of virus that all lead to one miserable outcome: extended periods in the the bathroom. Every year, an estimated over half a billion persons worldwide contract the virus.

Norovirus is a form of infectious stomach flu, essentially “a swelling of the intestines and the large intestine that often leads to loose stools” and nausea and vomiting, notes a doctor.

While it can spread year-round, it is often called the nickname “winter vomiting bug” since its activity surge from late fall and early spring in the northern parts of the world.

Below is key information to understand.

What is the Method by Which Norovirus Transmit?

Norovirus is exceptionally contagious. Most often, it invades the gastrointestinal tract by way of minute germs from an infected person's spit or stool. These particles often get on surfaces, or contaminate food or drink, eventually into the mouth – “known as the fecal-oral route”.

Particles remain infectious for as long as two weeks on hard surfaces such as doorknobs or toilets, requiring an extremely small exposure to cause illness. “The amount needed to infect for noroviruses is less than twenty particles.” In comparison, other viruses like Covid-19 typically need an exposure of one to four hundred particles to infect. “When somebody, has an active norovirus infection, they shed countless numbers of virus particles in every gram of feces.”

There is also a potential risk of spread via aerosolized particles, notably when you are near an individual when they are suffering from symptoms like diarrhea and/or vomiting.

Norovirus becomes contagious roughly 48 hours prior to the beginning of symptoms, and individuals may stay contagious for days or sometimes weeks once symptoms subside.

Confined spaces such as nursing homes, daycares as well as airports form a “prime location for catching the infection”. Ocean liners have a bad history: health authorities note multiple outbreaks on ships each year.

Which Are the Symptoms of Norovirus?

The onset of norovirus symptoms can feel rapid, beginning with abdominal cramping, perspiration, chills, nausea, throwing up and “severe diarrhea”. Typically, the illness are “mild” in the medical sense, meaning they resolve in under a few days.

That said, it’s an extremely miserable sickness. “Those affected may feel quite wiped out; experiencing a low-grade fever, headache. And in most cases, people are unable to continue doing daily tasks.”

When is Medical Care Required for Norovirus?

Each year, the virus leads to hundreds of deaths as well as tens of thousands hospital stays nationally, with individuals aged 65 and older at greatest risk. Those at greatest risk of experiencing serious infections include “children under 5 years of age, and particularly older individuals and people who are with weakened immune systems”.

People in these vulnerable age categories are also especially at risk of kidney injury from dehydration caused by profuse diarrhea. Should a person or loved one is in a vulnerable group and unable to retain fluids, experts suggests consulting a physician or visiting the emergency room for IV fluids.

The vast majority of healthy adults and older children without underlying conditions get over norovirus with no need for hospital care. Although authorities report several thousand of norovirus outbreaks each year, the actual number of infections is closer to many millions – the majority are not reported because people can “manage their infections on their own”.

While there’s no specific treatment one can do to reduce the duration of an episode with norovirus, it’s crucial to stay well-hydrated throughout. “Try drinking the same amount of fluids like sports drinks or plain water as the volume that comes out.” “Ice chips, popsicles – really anything you can keep down that will keep you hydrated.”

An antiemetic – a drug that reduces nausea and vomiting – like certain over-the-counter options might be needed if you can’t retain fluids. It is important not to, take medications for stopping diarrhoea, including Imodium or Pepto-Bismol. “The body attempts to eliminate the virus, and if you trap the viruses within … they stick around longer.”

What are Ways to Avoid Catching Norovirus?

Currently, there is no a norovirus vaccine. The reason is norovirus is “very challenging” to grow and study in labs. It has many different strains, that evolve rapidly, making broad protection difficult.

That leaves fundamental hygiene.

Wash Your Hands:

“To prevent or control infections, frequent hand washing is vital for all.” “Importantly, sick people must not prepare or handle meals, or care for others when they are sick.”

Hand sanitizer and other sanitizers are ineffective on norovirus, because of its viral makeup. “You can use sanitizer along with soap and water, sanitizer alone alone does not work well against it and cannot serve as a replacement for handwashing.”

Wash your hands often and thoroughly, with soap, for at least twenty seconds.

Steer Clear of a Sick Person's Bathroom:

Whenever feasible, set aside a different restroom for the sick person at home until they are better, and minimize other contact, as suggested.

Disinfect Contaminated Surfaces:

Disinfect surfaces with diluted bleach (one cup per gallon water) or undiluted three percent hydrogen peroxide, both of which {can kill|