In Africa today, the majority of infected people acquire HIV by the time they are in their 20s or 30s and, on average, die within ten years.
The majority of infected people acquire HIV by the time they are eighteen.
( z1 acquire :ARG0 ( z2 person :ARG1-of ( z3 infect ) :quant ( z4 majority ) ) :ARG1 ( z5 disease :name ( z6 name :op "HIV" ) ) :time ( z7 by :op ( z8 age :ARG1 z2 :ARG2 ( z9 temporal-quantity :quant 18 :unit ( z10 year ) ) ) ) )