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一年有春、夏、秋、冬四季,许多疾病也带有季节性。如麻疹、流感等易发于冬、春季;乙脑、菌痢、伤寒、肠炎等多发于夏、秋季;甲肝、白喉、出血热等好发于秋冬季;慢性支气管炎、哮喘症等常在深秋或冬初时节病情加重;精神分裂症等好在春、秋季复发。这些具有周期性变化,在一定
There are spring, summer, autumn and winter seasons, many diseases are seasonal. Such as measles, flu and other prone to winter and spring; JE, bacillary dysentery, typhoid fever, enteritis and other occur in summer and autumn; hepatitis A, diphtheria, hemorrhagic fever occur in the autumn and winter; chronic bronchitis, asthma and other often Late autumn or early winter season aggravating; schizophrenia and so good in spring and autumn recurrence. These have cyclical changes at a certain level