Left side: Label "LOW PREVALENCE". A desolate sandy island with only one palm tree. A pirate is digging in the sand looking frustrated, surrounded by piles of rusty junk (old boots, tin cans). There is a thick gray fog covering the ground. Right side: Label "HIGH PREVALENCE". A lush tropical island densely packed with hundreds of palm trees. The same pirate is celebrating, holding up overflowing handfuls of gold coins. There are open treasure chests under every tree. The sky is bright blue and clear. See more