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Recent cases of reinfection by coronavirus clearly demonstrate how immunity SARS-CoV-2 It is not permanent. At the moment, there is four officially recognized cases all over the world: a Hong Kong man, a Dutch patient, a Belgian woman, and a young American. All these cases were confirmed as second infections and not, as initially suggested, as simple “relapses” after a first infection. Here’s everything we know so far that can help us deal with the next few months of living with the virus, without panicking.
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The most important question here is: Can reinfected people transmit the coronavirus to other people? https://t.co/B0DT9Vyg5b
– Blackboard (@Pizarra) August 30, 2020
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Reinfections, all studies on the subject
The new cases recognized, through genetic tests, were confirmed as effective reinfezioni. Be careful but not be overwhelmed by fear, as Science Alert also explains, citing several studies. too Maria van Kerkhove, technical director ofwho for emergency COVID-19, explained: “I don’t want people to be scared, we know that those who are infected develop a immune response that, however, it doesn’t last forever. However, this does not mean that an infection cannot protect against future diseases, or that the vaccine is useless. At the moment i reinfection cases We are not concerned: there are only four confirmed in the world, against almost 24 million infections.
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Renfections, the cases in Holland
In Belgium and in Netherlands two studies have already been carried out reinfection cases. One of them is an elderly Dutch patient with a weak immune system, whose clinical situation was studied by the virologist. Marion koopmans. “For privacy reasons, I cannot reveal all the details, but the picture is clear enough: having developed antibodies does not automatically make us immune to new infections, but the organism seems to remember the previous disease” – explained Dr. Koopmans – ” In the event of reinfection, the immune system is capable of reacting quickly to a new infection and this is demonstrated by what happened in the body of a fragile patient.
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Another case of reinfection occurred a short distance away, in Belgium, where a woman in her 50s, infected in March, tested positive again in June. The virologist Marc van ranst explained what happened with this patient: “After the first infection, the woman had developed few antibodies and therefore reinfection occurred shortly afterwards. We would have preferred a longer time between the two infections, but this still shows that the antibodies that follow the first infection do not help enough to prevent subsequent infections. In all likelihood, we will see new cases of reinfection within six or nine months. ‘
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Reinections, the case of Hong Kong
The first officially recognized case of reinfection refers to a 30th of Hong Kong that at the beginning of August he had gone on a trip to Spain: the man, the first contagion, had presented symptoms such as fever, cough and headache, while the second contagion was completely asymptomatic. There are also others, yet to be determined, including South Korea, France and the United States. Anyway, Florian krammerAs an American virologist, he had already explained to Business Insider: “The immune response by antibodies is destined to weaken over time and reinfection cases are absolutely possible. What unites the first cases of reinfection is the best immune response to the disease, which in some cases may not present symptoms. We should not worry about these new cases, but carefully monitor the clinical conditions of those who are infected again and, above all, calculate the percentage of reinfections in relation to the total number of verified cases ”.
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The cases of reinfection, according to some non-vax, would demonstrate the low efficacy of a Sars-CoV-2 vaccine. Dr. Krammer, however, disagrees: “There is a very high probability of having milder symptoms in the event of a new infection. A vaccine It wouldn’t protect us 100% from infection, but it would certainly help the immune system to fight disease more effectively. “
Last updated: 17:51
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