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在最寒冷的12～1月,人体血液中的淋巴细胞数量相对处于最低水平,(淋巴细胞可以产生许多淋巴因子,参与人体抵抗微生物的侵袭),人就特别容易患感冒,气管炎等感染性疾病。而在炎热的7～8月份,人血液中的淋巴细胞数量最多,中性粒细胞却处于最低水平(白细胞可以吞噬侵入人体内的微生物),故在夏季一般不易患感冒等病毒感染性疾病,但容易患肠炎、痢疾等细菌感染性疾病。在春秋季节,人体内的特异性免疫球蛋白增
In the coldest December to January, the number of lymphocytes in human blood is relatively low, (lymphocytes can produce many lymphokines and participate in the body’s resistance to the invasion of microorganisms), people are particularly vulnerable to catching cold, bronchitis and other infectious disease. In the hot July to August, the largest number of human blood lymphocytes, neutrophils are at the lowest level (leukocytes can invade the human body invade the microorganisms), it is generally not susceptible to influenza and other infectious diseases in the summer, But susceptible to enteritis, dysentery and other bacterial infectious diseases. In the spring and autumn, the body’s specific immunoglobulin increased