蛔蟲(chóng)鉤蟲(chóng)蟯蟲(chóng)ppt課件(參考版)
2025-01-18 21:26本頁(yè)面
【正文】 N. americanus ml/day b. The worm usually changes its sucking site c. Disfunction of intestine to absorb iron gradually produce an irondeficiency anemia 4. gastroenteric symptoms 胃腸道癥狀 Slight, intermittent abdominal pain 5. Aberration of appetite(geophagy 異嗜癥 ) . loss of normal appetite and desire to eat soil or unnormal materials 6. Hookworm diseases of infant 7. eosinophilia Laboratory Diagnosis Laboratory Diagnosis 1. By identifying the eggs 1. direct fecal smear 2. brinefloatation method （飽和鹽水浮聚法） 3. Scotch tape technique (cellophane tape impression) 透明膠紙黏貼法 4. Larval cultivation (鉤蚴培養(yǎng)法 ) 2. By identifying the adults 3. therapeutic test Epidemiology distribution Basic conditions in parasitic epidemiology Patients and infected persons ? Souce of infection ? Mode of transmission (Factors of prevalence) For round worm For hookworm Via mouth Warmer and poor sanitation Inadequate disposal of feces Using nightsoil as fertilizer Via skin Barefoot walking Others: Oral （ A. doudenale) Placenta Mother’s milk Paratenic hosts ? Susceptible population “HandtoMouth”Transmission retroinfection through anus inhalation of ova For pinworm Epidemiology the reason for wide distribution of Ascaris l 1. simple life cycle 2. high reproductive capacity (240,000 eggs per day) 3. resistance of egg (due to presence of ascarosidal ) 4. social customs and habits Treatment Prevention and control Treatment of patients and carriers, Blockade of the route of transmission Protection of the susceptible population (personal prophylaxis) Chemoprophylaxis, vaccines, other preventive measures Treatment Prevention and control Treatment: Mebendazole（甲苯噠唑） Albendazole（阿苯噠唑，腸蟲(chóng)清） To prevent reinfection of , treat the whole family. Others for hookworm diseases? 透熱療法 糾正貧血 Prevention and control: hygienic control of food, feces Good hygiene is the best preventive measure Wash all bed clothes and bedding in hot water to kill infective eggs of . avoidance of contact with infected fecal material Others? Dog and Cat Hookworms HUMANS may serve as accidental hosts of these hookworms when the filariform larvae perate human s
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號(hào)-1