Ascariasis/Roundworm Inf

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Ascariasis/Roundworm Inf

  1. 1. Dr. Rajkumar Patil Asstt.Prof., Dept. of Community Medicine, AVMC, Pondicherry Ascariasis/Roundworm Infection
  2. 2. <ul><li>Most common helminthic infestation </li></ul><ul><li>Cosmopolitan </li></ul><ul><li>Agent </li></ul><ul><ul><li>Ascaris lumbricoides </li></ul></ul><ul><ul><li>M-20cm F-30cm </li></ul></ul><ul><li>Reservoir of infection </li></ul><ul><li>Man </li></ul><ul><li>Host </li></ul><ul><ul><li>Children </li></ul></ul><ul><ul><li>Host parasite balance </li></ul></ul><ul><ul><li>Malnutrition </li></ul></ul>
  3. 3. <ul><li>Period of communicability </li></ul><ul><li>Until all the stools are negative for the ascaris eggs </li></ul><ul><li>Environmental factors </li></ul><ul><li>Soil transmitted </li></ul><ul><li>For years eggs can survive under favourable conditions </li></ul><ul><li>Clay soils and low temperature are favourable </li></ul><ul><li>Open air defecation </li></ul><ul><li>Mode of transmission </li></ul><ul><li>Faeco-oral (food,water,pica) </li></ul><ul><li>Incubation period </li></ul><ul><li>2 months </li></ul>
  4. 4. Ascaris lumbricoides life cycle 200,000 eggs/day Embryonated egg larva Stage 2-3: 2-3 weeks, Stage 7-1: 2-3 months
  5. 5. Adult female Ascaris worm(1 ft)
  6. 6. Ascaris Ascaris in appendix
  7. 7. Ascaris
  8. 8. Clinical features of ascaris infection <ul><li>Nausea, abdominal pain, cough </li></ul><ul><li>In severe cases: </li></ul><ul><li>Intestinal obstruction </li></ul>
  9. 9. <ul><li>Prevention and control of ascaris infection </li></ul><ul><li>1.Sanitation </li></ul><ul><li>Prevent soil contact : Do not contact the soil </li></ul><ul><li>with bare hands in areas where ascariasis is common </li></ul><ul><li>Use of sanitary latrines </li></ul><ul><li>Do not use human excreta ,untreated sewage as manure in agriculture </li></ul>
  10. 10. <ul><li>2.Case finding, treatment, deworming </li></ul><ul><li>once/twice per year preschool and school-age children </li></ul><ul><li>women of childbearing age </li></ul><ul><li>3.Health Eduaction </li></ul><ul><li>use of saniatry latrine </li></ul><ul><li>prevention of soil pollution </li></ul><ul><li>diagnosis and treatment </li></ul><ul><li>deworming </li></ul>
  11. 11. Treatment of ascaris infection Piperazine:75 mg/kg body weight (max. dose 3.5 g) for 2 days <1 yr, kidney or liver disorder <1 yr, kidney or liver disorder <2 yr, pregnancy < 2 yr, pregnancy C/I 10 mg/kg daily for 3 days 50-150 mg single dose 500 mg single dose 400 mg single dose Dose Pyrantel Levamisole Mebendazole Albendazole Drug
  12. 12. Albendazole
  13. 13. Thank you

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