Coronavirus: what is the modeling of the onset of symptoms

Published by Laurent P. · Published on 20 October 2020 at 12h15
According to an American study released in Frontiers in Public Health, we now know the modeling of the onset of coronavirus symptoms in most patients, and the scheme seems to repeat itself.

A genuine advantage to spot coronavirus patients and come with a more precise diagnostic… American searchers from the University of South California have analyzed health data from over 50,000 Covid-19 patients in China, collected by WHO between February 16 and 24, 2020 and came up with a pattern as for the modeling of the onset of the symptoms of the disease. 1,100 other cases – including data collected by the China Medical Treatment Expert Group, via the National Health Commission of the People’s Republic of China between December 11, 2019 and January 29, 2020 have been included in the study. Results scientists have released on August 13, 2020 in the medical magazine Frontiers in Public Health.

Scientists have decided to focus on some symptoms only, “easily discernible or objective”, excluding symptoms of loss of smell and taste. And to make sure this winter doctors can see the difference between coronavirus and flue, with similar symptoms, searchers have compared their results with the symptoms of the flue in 2,500 cases diagnosed by the health authorities between 1994 and 1998, as well as two other known coronaviruses, naming SRAS and MERS. They compared the modeling of the onset of symptoms to see if there was any different for a quicker diagnosis.

As for symptoms of Covid-19, here is the modeling of onset of the most common symptoms:

  • Fever
  • Dry cough
  • Muscle pain
  • Nausea/vomiting
  • Diarrhea

Therefore, unlike flue starting with cough, coronavirus start – in most cases – with fever. “Our findings suggest that good clinical practice should involve recording the order of symptom occurrence in COVID-19 and other diseases” the authors of the study explain. They go on: “If such a systemic clinical practice had been standard since ancient diseases, perhaps the transition from local outbreak to pandemic could have been avoided”.

Please also note cough can lead to breathing difficulties and the loss of smell (leading to the loss of taste), generally arriving later, is one of the most indicative symptoms. Symptomes that show up progressively, unlike influenza, as reminded on RTL quoting the Institut Pasteur.

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