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Symptoms of COVID-19 often appear in this order, according to a new study



Researchers at the University of Southern California say they have found that symptoms of COVID-19 tend to appear in a specific order, a finding that may help enable early detection and treatment for multiple patients.

“This is a good guide for the species,” said Dr. Bob Lahita, a medical professor who is not related to the study, told CBSN anchor Anne-Marie Green. “We can say for sure, studying just like them, I think there were 55,000 patients from China. They looked at the data and looked at the symptoms and found that this order was quite reproducible.”

According to the study, published in the medical journal Frontier Public Health, the most likely order of symptoms is as follows: fever, then cough and muscle aches, followed by nausea and / or vomiting, and then diarrhea.

“Fever is number one, followed by coughing, followed by aches and pains ̵

1; and not everyone has to appear in sequence, they can appear together,” Lahita told the first grouping. of symptoms. After that, he said, comes nausea and vomiting, followed by diarrhea.

Not all patients experience the same set of symptoms. But the new findings help underscore how COVID-19 differs from other known diseases. While fever and cough are also associated with a number of other illnesses, such as the flu, the study notes that it was the time at which these symptoms appeared, and later gastrointestinal symptoms, which isolated this virus.

In a press release about the study, USC scientist Peter Kuhn said understanding the order of the virus symptoms is helpful during “overlapping disease cycles” such as next flu season.

“Physicians can determine what steps they need to take to care for the patient, and they can prevent the patient’s condition from deteriorating,” Kuhn said.

To discover the sequence, USC researchers, led by doctoral candidate Joseph Larsen, examined medical and other data on over 55,000 cases of coronavirus in China collected over a nine-day period in February, along with a series of over 1,000 cases from December to January. They also compared their findings with data on 2,470 cases of influenza in North America, Europe and the Southern Hemisphere from 1994 to 1998.

“It’s important to have this information,” Lahita said. “Except for the things we all talk about loss of smell and loss of taste, again – fever, cough, muscle aches, nausea, vomiting and then diarrhea are very good indications that you may have COVID-19 “.


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