Заболевание Зимнего Рвотного Синдрома

on PinterestCases of “winter vomiting disease,” also known as norovirus, are rising ahead of schedule this year.

on PinterestCases of “winter vomiting disease,” also known as norovirus, are rising ahead of schedule this year. Alexey Kuzma/Stocksy

• “Winter vomiting disease” is on the rise across the United States, with norovirus cases surging since mid-October.
• Wastewater surveillance and CDC testing indicate that norovirus is spreading earlier and faster than usual, particularly in Louisiana, Michigan, and Indiana.
• The virus spreads easily through contaminated food, water, hands, and surfaces, and symptoms can appear within a short period.
• Preventing infection from norovirus includes proper handwashing, disinfecting surfaces, avoiding d food or utensils, and staying home and hydrated if you become sick.

Rising norovirus cases across the United States have many people wary of contracting the so-called “winter vomiting disease.”

Data from WastewaterSCAN, a national monitoring program run by Stanford and Emory University, shows that norovirus levels have been rising since mid-October, with notable increases detected in Louisiana, Michigan, and Indiana.

Recent data from the Centers for Disease Control and Prevention (CDC) show 153 norovirus outbreaks reported from August to mid-November. The surge is considered ahead of schedule for the season, which typically peaks from November to April.

Despite this increase, norovirus outbreak trends are currently lower than last year, with 235 norovirus outbreaks reported during the same time period in 2024.

Norovirus is a highly contagious virus that spreads rapidly through contaminated food, water, hands, and surfaces.

With holiday travel and crowded indoor gatherings underway, conditions are ideal for the rapid transmission of this infectious disease, known to cause unpleasant gastrointestinal side effects.

Here’s what you need to know about the winter surge in norovirus cases and how to protect yourself.

Why are norovirus cases rising?

The time of year plays a significant role in the current surge in norovirus cases.

“Norovirus usually increases during the cold months when individuals have more indoor time and are in proximity to each other at places like school or work; this allows the virus to be easily passed from individual to individual,” Blen Tesfu, MD, physician and medical advisor at Welzo, told Healthline.

Holiday travel and an increase in social gatherings can also contribute to the spread of norovirus.

“Close quarters and sharing food or being on crowded buses and trains, as well as touching so many things, create an environment that will allow Norovirus to spread before you even realise you’ve come into contact with someone who has it,” Tesfu said.

Cold weather can also affect how well our immune system defends us. Lower vitamin D levels in winter and drier air can weaken natural immune barriers, making it easier for viruses like norovirus to spread.

Colder temps play a part, too. “The virus survives better in cool, dry air,” Paria Sanaty Zadeh, PharmD, clinical pharmacist at Drugwatch, told Healthline.

What is norovirus? 

Many people associate norovirus outbreaks with cruise ships, but the virus can also present in various other settings, including schools and nursing homes.

Norovirus infection may lead to telltale symptoms of vomiting and diarrhea, as the virus primarily affects the gut.

“Unlike the flu, norovirus targets the gut,” Zadeh said. “It’s a viral gastroenteritis, [or] what people

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