5:00 PM
Tuesday 13 October 2020
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Books – Sayed Metwally
The new Corona virus continues, its strange side effects on humans, after it caused the death of more than a million people around the world, not to mention the countless number of infections.
This time, a man in the United States of America suffered from infection with the Coronavirus twice, as the second infection was more dangerous than the first, according to BBC.
The 25-year-old, after suffering from lung problems, needed treatment in the hospital, and has now recovered.
While re-infection cases remain extremely rare, the Lancet Infectious Diseases study raises questions about how much immunity can be built against the virus.
The young man did not have any health problems or known immune impairment, which made him particularly vulnerable to infection with Covid-19, but on March 25 he suffered his first bout of symptoms, including sore throat, cough, headache, nausea and diarrhea.
On April 18, he tested positive for the first time, and on April 27, the initial symptoms completely disappeared, while on May 26, he tested negative for the virus twice, and two days later he had symptoms again, including fever, headache, dizziness, coughing, nausea and diarrhea.
On the fifth of June, he tested positive for the second time, and he suffers from a lack of oxygen in the blood with shortness of breath, as scientists confirm that the young man was infected with the Corona virus twice, and a comparison of the genetic codes of the virus taken during each episode of symptoms showed that they were different, It cannot be caused by the infection itself.
For his part, Dr. Mark Banduri of the University of Nevada said: “Our results indicate that the first infection may not necessarily protect against future infection, and the possibility of re-infection has an important impact on our understanding of Covid-19 immunity, and people who have recovered should continue to follow Social distancing guidelines, face masks and handwashing. “
The second infection with Covid-19 was supposed to be more moderate, as the body learned to fight the virus the first time, but it is still unclear why the young man, who is from Nevada, had a severe disease the second time, and he may have been exposed to a greater dose than Virus.
It is also possible that the primary immune response made the second infection worse, as this has been documented with diseases such as dengue fever, as antibodies resulting from infection with one strain of the virus caused problems when infected with another strain.
Professor Paul Hunter, from the University of East Anglia, said the study was very worrying, given the fact that so far more than 37 million people have been infected with the infection, we would have expected that we would have heard of several other incidents if such very early infections with the disease were common. But it is too early to say with certainty what are the implications of these results for any immune program, but these results reinforce the opinion that we still do not know enough about the immune response to this infection.
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