The study, Comparison of the immunogenicity of BNT162b2 and CoronaVac COVID-19 vaccines in Hong Kong, was published in the peer-reviewed journal Respirology. The two injections are different. The Pfizer BNT162b2 uses the modified RNA technology enclosed in a lipid nanoparticle. In contrast, the Coronavac uses an old vaccine technology using inactivated viruses that cannot replicate…
This article highlights a peer-reviewed study from the Imperial College of London. [1] The research answers the question, Why is it that not all people exposed to SARS-CoV-2 develop the disease? Is it possible that a previous illness from another coronavirus can protect against the SARS-CoV-2 virus? Is there a better alternative to spike-based vaccines?…
Antibodies and T- cells are produced in response to viral infections and immunizations, and they are specific to the protein sequences of each virus. The immune system “reads” those protein sequences during infections and immunizations and makes particular antibodies and T cells specific to them. The immune system also retains the information in its memory….
Update July 14, 2022: The featured study in this article is now published in Clinical and Translational Medicine. A preprint study from Hong Kong University shows that an Omicron infection elicits an immune response against several SARS-CoV-2 variants of concern. As a snapshot, the study involved two previously vaccinated people who had an omicron infection….
Have you met someone who never got COVID-19 even if exposed to many sick people? An emergency room physician told me about an x-ray technician who did not get COVID-19 during the pandemic. The tech will go about her usual routine of getting the COVID-19 patients from their rooms, bringing them over for the procedure,…
