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冬春季节,幼儿易患流感、麻疹、流脑、百日咳等呼吸道传染病,其发病率可比夏季高十倍之多。原因有: 一、呼吸道传染病的病原体,多数怕光、怕热、怕干燥。所以在阳光充足、气温较高的夏秋季节,它们难以生存;而冬春季节,气温较低,适宜于这种痛原体活动。二、呼吸道传染病的病原体,常
In winter and spring, young children are susceptible to respiratory infections such as flu, measles, meningitis and pertussis, and their incidence rate can be ten times as high as in summer. The reasons are: First, the pathogens of respiratory diseases, most afraid of light, afraid of heat, afraid of dry. So in sunny, high summer temperatures, they are difficult to survive; and winter and spring, the temperature is low, suitable for the activity of this species of pain. Second, the pathogens of respiratory diseases, often