Well the article oversimplifies the linked source quite a bit in my opinion: The article says >Volunteers experimentally inoculated with HCoV-229E showed a st

Well the article oversimplifies the linked source quite a bit in my opinion: The article says >Volunteers experimentally inoculated with HCoV-229E showed a steep decline in antibody response over time, and the majority could be successfully reinfected a year later. while the linked source for that 1990 study says that while the 10 study participants were reinfected, none of them developed colds a second time, and the virus shedding period was much shorter.