However, the researchers said that her natural immune response may still be “sufficient” to fight Kovid-19, because the type of treatment she has received for cancer is “not necessarily life-threatening.”
The patient was initially admitted to the hospital earlier this year with a severe cough and fever, with a positive test for Kovid-19.
According to the report, “she was discharged after five days” when her symptoms completely subsided, in addition to some persistent fatigue.
But two days into chemotherapy treatment – 59 days after the first Kovid-19 episode began – the woman had fever, cough and difficulty breathing.
He tested positive for coronavirus once again, and when tested four and six days, no antibodies were detected in his blood system. His condition worsened on the 8th.
Two weeks later, the woman died.
The woman was not tested between infections, so researchers have not confirmed any negative tests. However, upon examining the samples of both cases, they found that the genetic make-up of the two viruses differed.
He therefore concluded that “it is likely that the second episode was a reoccurrence rather than a prolonged shedding.”
The man is the first in America to have been reinfected. According to researchers in The Lancet Infectious Disease, a medical journal, he tested positive for Kovid-19 in April and again in June, showing symptoms in both cases such as a sore throat, cough, headache, nausea, and diarrhea.
The man had no underlying health condition but suffered a more severe episode a second time, similar to a Dutch woman.
However unlike the Dutch woman, the man developed a measurable antibody response after the second episode. Researchers could not conclude how long the man was immune, or if he ever was.
In The Lancet Infectious Diseases, researchers stated: “Re-infection with SARS-CoV-2 has been reported in at least four individuals worldwide. Thus, previous exposure to SARS-CoV-2 significantly increases immunity. Does not translate.
“The implications of reinfectus may be relevant to the development and application of the vaccine. From a public health point of view, all individuals — whether diagnosed earlier or not — should take equal precautions to prevent infection with SARS-CoV-2. . More work is needed to assess immunity. In vitro reactions after reinfection. “
He was initially re-infected 4.5 months after contracting the virus, and showed no symptoms during the second time period.
In a case report of a Dutch woman, researchers said that Kovid-19 recombination is expected to occur once antibodies are depleted and go into immune lanes.