Surely if 77% of the population have something it is the 23% that have the disorder?!
Herpetic gingivostomatitis is often the initial
presentation during the first herpes infection.
It is of greater severity than herpes labialis
which is often the subsequent presentations.
Around 90% of the U.S. population is affected
with this disease
http://en.wikipedia.org/wiki/Herpes_simplexIt's the most successful virus.