儿童所患的多数疾病是容易发现的，例如感 冒、发烧、腹泻等。而有一些疾病却不易被发现，而恰恰又是这些病，往往能影响儿童的听力、视力、行走或说话的能力。这些方面的疾病症状可能在很长一段时间内才能被发现。我们把它叫做“隐性致残”因素。 这些导致儿童残疾的重要先兆 Most diseases that children suffer are easily detectable, such as flu, fever, diarrhea and more. However, some diseases are not easily found, and it is these diseases that often affect children’s ability to hear, sight, walk or talk. Symptoms of these conditions may not be detected until a long period of time. We call it the “Recessive disability” factor. These are important precursors of childhood disability