伤寒症
接种疫苗
关于 伤寒症
何谓伤寒？
伤寒是种由伤寒杆菌引起的急性病，可以危及生命。据估计，每年全球有2200万宗伤寒病例，其中20万宗导致死亡。伤寒的症状表现为食欲不振、头痛、全身疼痛、发烧以及昏睡等。
伤寒如何传播？
伤寒最常通过摄入遭到受感染者或细菌携带者粪便污染的水或食物进行传播。（伤寒患者康复后有3％至5％的机率成为细菌携带者。）
我为什么应该接种伤寒疫苗？
前往南亚地区的旅客患伤寒的风险最大。其他有风险的地区包括东亚、东南亚、加勒比领域、非洲、中美洲和南美洲。为减少得伤寒的风险，我们强烈建议前往以上地区的旅客接种疫苗。
Points to Note:
Laboratory diagnostic tests are not perfect and are not 100% accurate
- We do not have a test for every disease or virus but most of those pathogens that are of public health importance or have long term implications on your health can be tested
- No one single test can be used with absolute certainty to diagnose a disease. Often, we depend on a combination of tests to make a diagnosis
- Sometimes, we have to resort to trial treatment or empiric treatment if investigative tests are inconclusive. If the patient makes a therapeutic response and feels better, we have achieved our goal
- In PUO, we are looking for treatable causes and to rule out sinister causes eg. malignancies so that we do not miss opportunities for early treatment or intervention