An epidemic resulted in overt measles in 99.9% per cent of the indigenous population.
An epidemic resulted in overt measles in 99.9% per cent of the indigenous population.
一次流行引起99.9%土著居民患有明显的麻疹。
An epidemic resulted in overt measles in 99.9% per cent of the indigenous population.
一次流行引起99.9%土著居民患有明显的麻疹。