Answer:
Total number of infected people = 4367 + 768 = 5135
Chance of infection (Whole population) = 3187463 / 5135 = 1 in every 621 people
Prevalence Rate per 100,000 = 0.02 % (According to parallel ratio statistics)
Incidence chances per 100,000 = ~ 20 people… or …1 in every 5000 individuals