the staff of the Ridgewood blog
Ridgewood NJ, according to Johns Hopkins Center for Health Security researchers from the La Jolla Institute for Immunology published (preprint) results from a study on longer-term immunity against SARS-CoV-2 conferred by natural infection. The study evaluated 185 individuals with previous SARS-CoV-2 infection. All participants, and the majority experienced COVID-19 disease but were not hospitalized. Most of the participants provided a single blood sample between 6 and 240 days after symptom onset, with 41 collected at least 6 months after symptom onset. A subset of 38 participants provided multiple samples over a period of several months. The researchers found that antibodies against the spike protein of SARS-CoV-2 were relatively stable and memory B cells were abundant after 6 months, leading to optimism that immunity against the virus could mitigate the risk of severe COVID-19 disease for “many years.”
While this could hold true for the majority of people, there is growing evidence of SARS-CoV-2 reinfections, suggesting that immunity to the disease is complex and nuanced. According to a summary published by Science, reports of reinfections were identified as early as April, but it was months later, in late August, that a reinfection case was officially confirmed. Cases determined to be reinfections are defined as those with at least 2 positive PCR tests with at least 1 month without any symptoms in between the tests. Because there is a risk that the second test could be a false positive as a result of residual viral RNA in the body or because the virus was never fully cleared, researchers must compare genetic sequences from both specimens in order to determine if they are sufficiently different to indicate 2 separate infections. If genetic sequence data are not available for both specimens, it could prevent documentation as a reinfection. A positive note, however, is that the reinfections generally tend to be milder thus far compared to the original infection, although additional research is required to more fully characterize the factors contributing to reinfection and the associated disease severity.
OK tell that to people who get sick. Please if you’re not feeling well go get tested do not go to work or school.
Korea has alot of data on reinfection. It occurs and just as bad as first time in most
cases.
Remember.
Be SCARED.
That is the most important thing.
Hiding is also good.