However, the researchers said that her natural immune response may still be “sufficient” to fight Kovid-19, as the type of treatment she receives for cancer “does not necessarily result in a life-threatening disease.”
The patient was admitted to the hospital earlier this year with severe coffee and fever, tested positive for Covid-19.
“In addition to a brief period of fatigue, there was a complete reduction in her symptoms,” the report said.
But two days into chemotherapy treatment – 59 days after the start of the first Covid-19 episode – the woman developed a fever, cough, and difficulty breathing.
She tested positive for coronavirus once again, and at four and six days when her antibodies were tested, no antibodies were found in her blood system. His condition worsened in eight days.
Two weeks later, the woman died.
The woman was not tested between infections, so there are no confirmed negative tests from the researchers. However, after examining samples from both cases, they found that the genetic makeup of the two viruses was different.
So they concluded that “it is possible that the second episode was a re-arrangement rather than a long shading.”
This man is a U.S. citizen. Is the first person to be infected again. According to researchers at the medical journal, The Lancet Infectious Diseases, he tested positive for Covid-19 in April and again in June, showing symptoms in both cases, such as sore throat, cough, headache, ause bark and diarrhea.
This man had no underlying health condition but in the same way as the Dutch woman, faced a second more serious episode.
However, unlike the Dutch woman, the man developed a measurable antibody response after the second episode. Researchers have not been able to conclude how long the man has been immune, or if he ever was.
In Lancet infectious diseases, the researchers said: “Reinfection with SARS-CoV-2 has been reported in at least four individuals worldwide. Thus, previous exposure to SARS-CoV-2 does not translate to absolute immunity for sure.
“The effects of refraction may be related to vaccine development and application. From a public health perspective, all individuals – whether previously diagnosed or not – must take the same precautions to prevent infection with SARS-CoV-2. Further work is needed to assess immunity. Reactions in vitro after reinfection. “
Months of early virus contraction. Months later he was infected again, and the second time he showed no symptoms.
In a report on a Dutch woman’s case, researchers said that Covid-19 reflexes are expected to occur after antibodies are depleted and the immune system is weakened.
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