Recommendations for national SARS-CoV-2 testing strategies and diagnostic capacities
Recommendations for national SARS-CoV-2 testing strategies and diagnostic capacities (by the WHO)
WHO never supported asymptomatic testing for air travel since it was not supported by scientific studies. Most important issue is to stay off the planes if acutely sick and airlines should be flexible with changes. Testing travelers never had a role from the very beginning.
Direct PDF: https://www.doctorstalk.ch/wp-content/uploads/2022/06/WHO-2019-nCoV-lab-testing-2021.1-eng.pdf
Source: https://www.who.int/publications/i/item/WHO-2019-nCoV-lab-testing-2021.1-eng
Letter to FDA from Congress
Letter to FDA from Congress and Senate on rationale since so many children have already had the infection and its too late from them to take one of the products. Why take the risk without any assurances of long term safety? 19 questions, 18 signatures. Lets here some answers!
Infection-enhancing anti-SARS-CoV-2 antibodies recognize both the original Wuhan/D614G strain and Delta variants. A potential risk for mass vaccination
Yahi et al.: so it is the binding to the virus by non-neutralizing Abs that do not eliminate the virus but increases infectiousness…it enhances the infection capability and explains why the vaccinated are getting infected; the non-neutralizing Abs bind to the virus in the upper respiratory tract and drive infection yet binds to the lower respiratory tract and prevents severe disease (transfection from infected to non-infected cells). This study shows original antigenic sin and ADE.
“our data suggest that the balance between neutralizing and facilitating antibodies in vaccinated individuals is in favor of neutralization for the original Wuhan/D614G strain. However, in the case of the Delta variant, neutralizing antibodies have a decreased affinity for the spike protein, whereas facilitating antibodies display a strikingly increased affinity. Thus, ADE may be a concern for people receiving vaccines based on the original Wuhan strain spike sequence (either mRNA or viral vectors).”
