The highly-contagious omicron variant now accounts for most new cases in the United States. Omicron symptoms: What we know about illness caused by the "The most reported symptoms of Omicron are really very much like a cold, especially in people who've been vaccinated," Dr. Claire Steves, a scientist involved with the Zoe COVIDSymptomStudy, said in a recent video. Regular diarrhea may result from exposure to bacteria such as Escherichia coli or viruses such as norovirus. There are several things you can do to help reduce the severity of symptoms, whether its caused by COVID-19, a GI virus or food poisoning: Diarrhea can cause you to lose a lot of water and electrolytes, which can lead to dehydration. Runny nose, headache, fatigue, sneezing, and sore throat were the top five symptoms among people in the UK who recorded a positive COVID-19 test in the past few weeks. nausea or vomiting diarrhea However, the CDC notes this list is not exhaustive, and people might experience different symptoms or combinations of symptoms. There is no evidence that these are Omicrons symptoms and that it does not cause cough or fever. "Determining the exact cause early on is not always that cut and dry.". The review's authors suggest that nausea, vomiting and issues like diarrhea may be triggered in a COVID-19 infection due to our body's inflammatory response to the virus infection. Coronavirus symptoms that differ from colds include chills, shortness of breath, body aches, loss of taste or smell, nausea, vomiting and diarrhea. Kow C, et al. Cookie Policy. The pair of symptoms aren't as common with other seasonal illnesses, which infectious disease specialists say should serve as a warning. If you are still having symptoms after five days, stay away from others until your symptoms are gone, says Barajas. What to eat with an upset stomach (plus 6 things to avoid), 7 strange symptoms of COVID-19, including rashes, COVID toes and hair loss. Omicron