How long can a symptomatic patient transmit Covid-19? This is the whole problem with the coronavirus: time. Ditto for that of incubation, estimated up to 15 days, but potentially more in some cases. As for the duration of contagion, unknowns remain, and variations apply, but it is generally long. Explanations.
the contagion time is estimated from the onset of symptoms. According to a graph transmitted by Professor Antoine Flahault of the University of Geneva, the more severe the manifestations, the longer the person is contagious. But if we estimate the potential time of risk of disease transmission at the onset of symptoms, we also know that not having symptoms does not prevent transmission of the disease…
1) on the form: the process is unpleasant: I sign my tweets, you don’t;
2) on the merits: I fully endorse this infographic which summarizes in a very didactic way the information currently available on the range of clinical forms, their frequency, contagiousness, mortality pic.twitter.com/UjDG6NEgsE– Antoine FLAHAULT (@FLAHAULT) April 8, 2020
Contagious over variable periods of time: at least 14 to 25 days
Thus, approximately 30% of patients would be said to be “healthy carriers” and would be contagious anyway. The others also have a symptom-free period, the incubation time. It is also a period of possible transmission. In the same way, this continues after the disappearance of the demonstrations … Globally, those who have no or few symptoms could transmit Covid-19 14 days, those with moderate symptoms: Three weeks. And the most seriously ill? About 25 days. A Chinese study pointed out that it could be up to 37 days.
The minimum duration is 14/15 days. It concerns according to the graphic disseminated by Le Parisien, 30% of the population. 55% of patients have mild to moderate symptoms, and 10% have severe symptoms: for these last two categories the transmission time is estimated at 3 weeks.
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