predisposing cause meaning in Chinese

诱因
致病因素

And the experience of most communities where you have good surveillance system is that pneumonias in the background is about 50 per cent is usually from your retrospective studies due to bacteria . of course , bacteria pneumonias are usually easier to treat although they are not always curable , but they are much easier to treat with antibiotics . and usually patients responded well unless they have predisposed causes , cancer or other deficiencies
另一半就是包含一些非典型的，这方面在每一个地方，每个国家都存在的，我们称它为背景性肺炎，这一半个案一般有很多是受很多过滤性病毒影响，类似感冒，感冒菌，大致上，就这些非典型很多是感冒菌，是季节性的，大约在天冷时多一点，天热时少一点。