These are not familiar diseases to people lucky enough to live in the world’s richest countries, but they are household names to hundreds of millions of poor people, who are often infected with more than one of them. They are long-lasting conditions, often contracted at an early age, and both the illnesses and their symptoms are progressive.
有幸生活在世界上最富有的国家的人们很少听说这些疾病，但是对于数以亿计的穷人来说，这些却是家喻户晓的名词，很多人还同时患有不止一种。这些疾病是长期的，通常在孩童时期感染，病情和症状都会越来越严重。