Weird Immunological Science

The Wall Street Journal reports (behind paywall) some of us have immune systems that are primed to fight corona virus even before we're exposed to it.

The emerging theory: Exposure to other coronaviruses earlier in life helps some individuals fight the new intruder.

That T-cells can recognize similar viruses years after infection suggests long-lasting immunity might be possible.

This thinking, if accurate, makes a future immunization more valuable than flu shots which are needed yearly and often miss the mark. If long-lasting, perhaps one shot will be good for decades? FYI, some versions of the common cold are corona viruses.