Dr. Anthony Fauci brazenly lied to Senator Rand Paul, MD, when questioned about preexisting immunity to COVID-19, that some people have from coronavirus common colds. Existence of such cross-reactivity was not in doubt and was acknowledged by Dr. Fauci earlier. But on Wednesday, September 23, Dr. Fauci said “there was a study that recently came out that preexisting immunity to coronaviruses that are common cold do not cross-react with the covid-19”.
He referred to the study No SARS-CoV-2 neutralization by intravenous immunoglobulins produced from plasma collected before the 2020 pandemic, Schwaiger et al. / Baxter AG, September 17, as confirmed by his office.
This study made an exactly opposite statement: “antibody binding assays have shown some cross-reactivity between different HCoVs [seasonal human coronaviruses] and SARS-CoV-2”. The study concluded that “currently available IVIGs [Intravenous immunoglobulins] can therefore not be expected to afford protection from SARS-CoV-2 infection” – another well-known fact, not controverting the existence and significance of the cross-reactivity.
Dr. Fauci expected that the fake news media would take his word and not read the paper. The FNM did not disappoint him and hardly surprised anybody else.
Cross-reactivity through T cells response is well known. T cells memory is a long-lasting effect. The role of antibodies to coronaviruses HCoV-OC43 and HCoV-HKU1 (causing some common colds) in fighting off SARS-CoV-2 is less clear. These antibodies are much less durable than T cells memory. The social distancing measures have probably all but eliminated circulation of common colds, and we have no or almost no antibodies to OC43/HKU1. If they helped to protect some people against SARS-CoV-2 in February – May of this, we do not have this help now.
Humans do not live in clamshells. Multi-month lockdowns and extreme anti-infections measures are expected to negatively impact our immunity response.
Senator Rand Paul also talked about Sweden. Sweden has too high COVID-19 mortality, probably because Sweden did not use HCQ.