Interhost variability of hcmv populations in clinical samples: genome wide averages.

1π is the nucleotide diversity between the consensus sequence from each clinical HCMV population and the HCMV reference sequence (Merlin) as calculated using the formula of Nei and Li [45].
2dN/dS was calculated using the formula of Nei and Gojobori [73].
3πAA is the interhost amino acid diversity between clinical major genome type and the HCMV reference sequence (Merlin). It is calculated with the same formula as π but only nonsynonymous mutations are included.