The reason for the short-term immunity is because there are more than 160 strains of rhinovirus, and developing a vaccine or antibodies that target so many strains at once (all of which can mutate, of course) is nigh impossible with our current technology.
The reason for the short-term immunity is because there are more than 160 strains of rhinovirus, and developing a vaccine or antibodies that target so many strains at once (all of which can mutate, of course) is nigh impossible with our current technology.
Exactly.