Viral transmission is most successful when density of hosts is high.
While we cannot extrapolate to other turtle sites on Maui or the Hawaiian Islands, we can comment on the Honokowai population. There, we notice that adult males do not congregate much with other turtles. For the most part, the turtles we see are sociable and enjoy resting together. Juveniles like to cluster with older females. We can't tell females from males until the male's tail begins to grow, so we think of most smaller turtles as females.