What is the Norovirus & Just How Infectious Could it Be?

The norovirus describes a collection of approximately 50 viral strains that all lead to one miserable conclusion: extended periods spent in restroom. Annually, an estimated hundreds of millions persons worldwide fall ill with the virus.

This virus is a type of infectious gastroenteritis, defined as “an inflammation of the bowel and the colon that often leads to diarrhea” as well as vomiting, as explained by a doctor.

Norovirus circulates throughout the year, it bears the moniker “winter vomiting illness” since its infections peak from late fall to February across the northern parts of the world.

Here is what you need to know.

How Does Norovirus Propagate?

Norovirus is extremely infectious. Most often, the virus invades the digestive system via microscopic virus particles from an infected person's spit and/or stool. This matter may end up on surfaces, or in meals, and ultimately in your mouth – “what we call the fecal-oral route”.

Particles remain active for about two weeks upon non-porous surfaces such as doorknobs and faucets, requiring an extremely small amount for infection. “The required exposure for this virus is less than 20 particles.” For example, COVID-19 need about one to four hundred particles for infection. “During infection, is suffering from the illness, there’s countless numbers of virus particles per gram of feces.”

One must also consider some risk of spread through particles in the air, particularly if you’re near an individual when they are experiencing active symptoms like severe diarrhea or being sick.

Norovirus becomes contagious roughly two days prior to the start of illness, and individuals may stay contagious for several days or sometimes a few weeks after symptoms subside.

Crowded environments including eldercare facilities, daycares as well as travel hubs form a “perfect nidus for spreading the infection”. Ocean liners are especially notorious reputation: health authorities note numerous outbreaks on ships on a regular basis.

What Are the Symptoms of Norovirus?

The beginning of norovirus symptoms is frequently sudden, starting with abdominal cramping, perspiration, chills, queasiness, throwing up along with “very watery diarrhea”. The majority of infections are considered “mild” clinically speaking, which means they subside within a few days.

However, it’s an extremely debilitating sickness. “Those affected can feel pretty fatigued; experiencing a low-grade fever, headaches. And in most cases, people are not able to perform daily tasks.”

Do I Need Medical Care for Norovirus?

Annually, the virus leads to several hundred fatalities and many thousands hospital stays nationally, where individuals the elderly facing the highest risk level. The groups most likely to have severe norovirus include “young children less than 5 years old, and particularly the elderly and those that are with weakened immune systems”.

Those in higher-risk age categories can also be especially at risk of kidney problems from severe fluid loss from severe diarrhea. If you or loved one falls into a higher-risk group and cannot retain fluids, medical advice recommends seeing your doctor or visiting urgent care for fluids via IV.

The vast majority of healthy adults and kids without chronic health issues get over the illness without doctor visits. Although health agencies track several thousand of norovirus outbreaks annually, the total figure of cases is estimated at many millions – most cases go unreported because individuals are able to “manage their illness at home”.

Although there is no specific treatment you can do that cuts the duration of an episode with norovirus, it’s essential to remain hydrated the entire time. “Aim to drink an equivalent volume of fluids like electrolyte solutions or water as the volume that comes out.” “Crushed ice, popsicles – really anything that can be keep down to keep you hydrated.”

Anti-nausea medication – medication that prevents nausea and vomiting – like certain over-the-counter options might be needed in cases where one can’t retain fluids. It is important not to, use medications for stopping diarrhea, including Imodium or Pepto-Bismol. “The body is trying to eliminate the infection, and if we keep the viruses within … the illness lasts for longer periods of time.”

What are Ways to Avoid Getting Norovirus?

Currently, we don’t have a norovirus vaccine. This is due to the fact norovirus is “very challenging” to grow and study in labs. It encompasses numerous strains, which mutate rapidly, making a single vaccine challenging.

That leaves the basics.

Practice Thorough Handwashing:

“To prevent or control infections, proper hand hygiene is crucial for everyone.” “Critically, sick people should not prepare or handle food, or look after others when they are sick.”

Hand sanitizer and similar sanitizers are not effective on norovirus, due to how the virus is structured. “You can use hand sanitizers along with handwashing, sanitizer alone is not sufficient against norovirus and is not a substitute for washing with soap.”

Wash your hands frequently and thoroughly, using good-quality soap, for at least 20 seconds.

Avoid Using a Sick Person's Bathroom:

Whenever feasible, set aside a separate bathroom for any sick person at home until they are better, and minimize close contact, as suggested.

Clean Affected Items:

Clean hard surfaces with diluted bleach (1 cup per gallon water) or undiluted 3% hydrogen peroxide, both of which {can kill|