• Diarrheal illness is one of the leading causes of death worldwide. • It is most commonly encountered in develeoping countries. • Can be life-threatening in infants, young children, and elderly people. Most individuals with this illness can be managed as outpatients

 Gram-negative, obligate intracellular coccobacilli bacteria that infect mammaols and arthropods  Rickettsiae are transmitted in the arthropods,which serves as both vector and reservior  Both DNA and RNA  Is sensitive to antibiotic  Culture：in animate media

⚫ Normal body temperature: 37oC (set point) Circadian variation oral T 0. 4oC > axillary T ⚫ Definition of fever: An elevation of core body temperature above the normal range

• Diarrheal illness is one of the leading causes of death worldwide. • It is most commonly encountered in develeoping countries. • Can be life-threatening in infants, young children, and elderly people. Most individuals with this illness can be managed as outpatients

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人教版初中生物八年级下册第八单元 健康地生活第一章 传染病和免疫课件

一、免疫接种的定义 二、免疫接种的分类 三、药物预防