We are learning more and more about coronavirus that originated this pandemic. This last April, several dermatologists warned about rashes caused by Covid-19. “These are acrosyndromes, naming pseudo-frostbites at the extremities” they described.
Although they were not a severe sign, specialists were worried about the contagion risk: “because these signs as they are not accompanied by pulmonary infection, these patients are likely more contagious, and potentially carrying and spreading the virus, without them knowing it. This is a sign that seems very important to know to all our peers”.
A few months later, science now has the answer to the mystery of coronavirus-caused frostbites. News is encouraging: it is a sign of natural effective immunity. This is the conclusion of a study carried out in April at the Nice university hospital. In the 40 patients that were contact cases or suspected cases and in which frostbites have been noticed, PCR tests were negative. Yet, the serological analysis – enabling to find antibodies in the blood – turned out positive for a third of them.
Next, searchers compared three cells representing immunity according three kinds of patients. Those in which the infamous frostbites were noticed, those who contracted a non-severe form of coronavirus and those who have been hospitalized because of clinically severe coronavirus. Observations confirmed the lead of high performer immunity.
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