Theres a risk of antibody dependent enhancement (antibodies backfire and lead to worse disease) with coronavirus antibody cocktails based on what we know about

Theres a risk of antibody dependent enhancement (antibodies backfire and lead to worse disease) with coronavirus antibody cocktails based on what we know about SARS. There are efforts to develop monoclonal antibodies that are selected to avoid ADE if that turns out to be a problem, so maybe a passive vaccine like that could be viable