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“Nausea and or vomiting are usually the first symptoms of norovirus,” says infectious disease expert Amesh A. Adalja, MD, a senior scholar at the Johns Hopkins Center for Health Security.
Annually, norovirus causes 19 to 21 million cases of vomiting and diarrhea in the U.S., 465,000 emergency room visits, 109,000 hospitalizations, and 900 deaths, per the CDC.
Also sometimes called the Norwalk virus or winter vomiting bug, norovirus is an extremely contagious virus. It is a common cause of illness outbreaks on cruise ships, where more than 90% of ...
Three common clusters of symptoms have been identified: a respiratory symptom cluster with cough, sputum, shortness of breath, and fever; a musculoskeletal symptom cluster with muscle and joint pain, headache, and fatigue; and a cluster of digestive symptoms with abdominal pain, vomiting, and diarrhea. [5]
Norovirus, also known as Norwalk virus and sometimes referred to as the winter vomiting disease, is the most common cause of gastroenteritis. [ 1 ] [ 6 ] Infection is characterized by non-bloody diarrhea , vomiting , and stomach pain .
Ongoing epidemics and pandemics are in boldface.For a given epidemic or pandemic, the average of its estimated death toll range is used for ranking. If the death toll averages of two or more epidemics or pandemics are equal, then the smaller the range, the higher the rank.
24/7 Help. For premium support please call: ... XEC is an Omicron variant, Russo explains. But it has several mutations in the spike protein, which is what the virus uses to infect you. That can ...
On 19 March, WHO Director-General Tedros indicated he was "confident" the COVID-19 pandemic would cease to be a public health emergency by the end of the year. [258] On 5 May, the WHO downgraded COVID-19 from being a global health emergency, though it continued to refer to it as a pandemic. [ 259 ]