Table 2. Viruses, seroprevalence, and annual attack rate estimated from the adult population.

Latent viruses	Seroprevalence	Episodic viruses	Attack rate
CMV	45%-90%	RSV	5%-15%
EBV	> 90%	Parainfluenza	5%-10%
HSV1/2	50%-90%	Influenza	< 5%
HHV-6	> 90%	Adenovirus	< 5%
EBV	> 90%	Rhinovirus	< 5%
VZV	> 90%*	Meta-pneumovirus	?
BK virus	> 90%	Measles	< 1%

^*Population estimates are changing based on vaccination decrease of natural infection.