Result: K103NS variants were mainly observed (60/77, 78%) in > 80% of the viral quasispecies,
E138K mainly (20/34, 59%) in < 5%, and
G190ASE displayed a more uniform spread.
Result: For example,
K103NS was the most common
NNRTI mutation in the USA and Latin America, whereas
G190ASE was the most common
NNRTI mutation in Europe, Africa and Asia.