In the realm of medical advancements, a universal vaccine that can protect against any pathogen has long been a Holy Grail—and about as elusive as a mythological vessel. But Stanford Medicine researchers and collaborators have taken an astonishing step forward in that quest, surprising even themselves.
Evolution tests many paths and takes the one that benefits the species in the long run. Simply by the better equipped producing more viable offspring.
An immune system on permanent alert probably makes autoimmune problems worse, and may exhaust all kinds of resources. Both would have to be balanced with the benefit of not having a runny nose.