https://www.bbc.com/news/world-europe-53315983See:
Lancet has reported the results of a Spanish study of viruses highly similar to the corona virus that suggest the life span/effectiveness of corona anti-bodies are limited. The suggested implication is that herd immunity and/or an effective corona vaccine are not possible.
The Lancet is the leading British medical journal and its stature is on the same order as our the New England Journal Of Medicine.