translation.en: But dengue fever now, according to the World Health Organization, infects between 50 and 100 million people every year, so that's equivalent to the whole of the population of the U.K. being infected every year.
translation.zh: 而据世界卫生组织报道， 如今每年有5千万到1亿人感染登革热， 这相当于 整个英国的人口数量。