Anyone considering participating in trials of vaccines for SARS2 should read papers resulting from attempts to vaccinate for SARS prior to participating. Attenuated and dead virus vaccines in every SARS trial resulted in increased morbidity and mortality of subjects.
tl;dr SARS vaccines all killed more subjects and did not create immunity. Vaccines for SARS2 are likely to have the same potential to worsen symptoms. Extreme caution is advised.
RE: First vaccine trial for Covid-19 has begun – WHO