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 Crap.... (OAS and OC43)
Obseedian 17k posts, incept 2007-07-26
2021-09-08 09:19:01

Here is what appears to be the first documented instance of OC43 infection with ADE and/or OAS happening in a vaccinated individual (single dose of Astra-Zeneca). Presented with COVID symptoms, but tested negative. Eventually tested positive for OC43. Patient needed hospital care, but had no previous history of recurrent infections, despite having a number of co-morbidities.

The authors even dare to ask the right questions.
Seasonal coronaviruses such as OC43 in general cause mild common cold or upper respiratory
symptoms, although some patients may develop pneumonia6. Our patients symptoms were severe
enough to require hospital admission for respiratory insufficiency. We are intrigued by the fact that
past COVID-19 and recent vaccination did not seem to provide any protective effect in this case
against coronavirus OC43. There is growing evidence that the clinical manifestations of respiratory
viruses are related to immune interfering mechanisms, which can be particularly important for
epidemic and pandemic coronaviruses7. While current studies have focused on the potential effect
of past coronaviruses over SARS-COV2 infection, to our knowledge there has been no investigation
on the reverse situation, that is, if SARS-COV2 can have an impact on the incidence or severity of
other coronaviruses. The role of antibody-dependent enhancement in human coronaviruses, and for
SARS-COV2 in particular, has yet to be established8. Further studies and epidemiological surveillance
will help to determine if our case is just an oddity or if the current pandemic may yet have other
unexpected collateral effects.

Those who vote decide nothing. Those who count the vote decide everything. - Joseph Stalin
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