Apparently there will be no herd immunity, and possibly no vaccines either.
"A recent preprint study published in medRxiv, indicates that there is a rapid decline in the levels of SARS-CoV-2 neutralizing antibodies during the weeks following initial infection. This raises questions over the potential for re-infection, the effectiveness that may be expected from vaccination and the viable window for antibody testing in disease surveillance.
"The study, led by Kings College London researchers, followed 65 patients with SARS-CoV-2 infection that had been confirmed by RT-qPCR for 94 days following the first onset of symptoms. During this period, repeated serum samples were collected and SARS-CoV-2 neutralizing antibody titers measured by ELISA and neutralization assay.
"This showed over 95% seroconversion and identified neutralizing antibodies beyond 8 days post onset of symptoms. Disease severity was correlated with peak antibody levels; however, this did not appear to impact antibody kinetics. During the ensuing observation period, a rapid decline of neutralizing antibody titers was observed, with some individuals approaching baseline levels by the end of the observation period.
“This is the first comprehensive study of the longevity of antibody responses in both symptomatic and asymptomatic individuals infected with SARS-CoV-2. This is a well-performed analysis which provides a thorough examination of different antibody responses to SARS-CoV-2,” commented Lawrence Young, Professor of Molecular Oncology, University of Warwick."
https://www.technologynetworks.com/t...fection-337299
Since you claim to be medically-knowledgeable, I'm sure you'll both understand what is being reported here, and find an obscure blog post to refute it, correct?
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