There are few, very few cases of reinfected people around the world. But that does not imply that they should not be taken into account. On the contrary, they add a new variant to the equation. And it is not exactly positive. So, The study of these patients is essential to know why it occurs, how the virus behaves, and what way there is to prevent it from occurring. It is a worrying aspect because it would be the case that generating antibodies is useless or the use of a single vaccine.
There are hardly any registered cases worldwide, but coincidentally four of them are concentrated in Catalonia, having more in our country. The last detected in Spain is that of Rodrigo González, a man who in March generated many antibodies, in June he had them triggered, and in August he fell ill again. “Surprise, I thought I was going to be the one who certainly didn’t, because I had all the antibodies in the world, but I was the one who did. They told me jokingly that it was a case study ”, he confessed to Informativos Telecinco. However, the coronavirus has passed in a milder way.
Another of those reinfected is Óscar, a 45-year-old waiter at a restaurant in Covarrubias, who was infected months ago and after a few weeks had to be admitted at the Burgos University Hospital for three days. After suffering pneumonia, he overcame COVID-19. Even if the most serious case has been that of a doctor from the Palamós Hospital, who had to be admitted to the ICU of the Germans Trias i Pujol Hospital in Badalona (Barcelona). However, his prognosis is positive and he will recover soon.
Experts formulate their reasoning
So far, they have been made very little evidence of reinfection in humans with coronavirus since, as it has been said, the examples are scarce. Most studies on immunity have focused on the induction of neutralizing antibodies. However, Antibody responses tend to decrease and in less severe cases of coronavirus are not detectable in all patients.
The head of the Ramón y Cajal Hospital Microbiology Service, Rafael Canto, considers that reinfection may be due to “different strains” and that the vaccine has to change “so that a sufficiently important stimulus is produced for different variants of the virus that may emerge.” To these words, Telecinco added that Faced with the loss of antibodies, a revaccination may be necessary. On the issue of the flu, it is clear.
For his part, Benito Almirante, chief infectologist at the Vall d’Hebrón Hospital, has also opined that “Not all people develop adequate immunity”, and points to a possible reason for the reinfection: “The person will have had an enormous amount of virus, which would have required a much more important inflammatory response.”