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There is an interesting study from Nature Medicine 2015 that I was looking at. This is a basic science article but worth the read. This study basically shows what Wuhan Institute of Virology was up to in 2015 (approved and funded by NIH and NIAID). The virus they created is eerily similar to COVID -19.
Basically what they created was a hybrid virus composed of the original SARS virus with a spike protein of a bat coronavirus. The original SARS virus was very lethal but wouldn’t mutate. This hybrid virus would.
This hybrid virus would:
- Kill older animals far more than younger animals.
- Become rapidly resistant to monoclonal antibodies by production of escape mutants.
- Vaccine protection would only last 30 days on average and then antibody titers would fall. No vaccine was successful for this hybrid.
- Remdesivir would inhibit viral replication in vitro.
Last and the most frightening property which we haven’t seen with COVID 19 so far.
Vaccines were capable of causing antibody dependent enhancement(ADE). Basically ADE is that if antibodies are not specific to the virus the virus will use the antibodies to enter cells and enhance disease. This we haven’t seen with COVID so far but I am afraid this is only because so far the vaccine is very specific for COVID. Once escape mutants arise then ADE will be a problem.
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