A study of 229E finds that reinfection with that HCoV is not due to waning immunity but due to antigenic shift: https://journals.plos.org/plospathogens/article

A study of 229E finds that reinfection with that HCoV is not due to waning immunity but due to antigenic shift: https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1009453 https://journals.plos.org/plospathogens/article?id=10.1371/j...