Presentation is loading. Please wait.

Presentation is loading. Please wait.

Strongyloides stercoralis

Similar presentations


Presentation on theme: "Strongyloides stercoralis"— Presentation transcript:

1 Strongyloides stercoralis
Peter Bertrán

2 Background Information
Nematode 2 life forms Transmission Penetrates through skin Migrate to alveoli Swallowing leads to hyperinfection Larvae excreted and process starts anew

3 Continued Background Information
Pathogenic effects Dermatologic Rash, cutaneous granulomas Gastrointestinal Distension, diarrhea, pain Pulmonary Wheezing, cough, hemoptysis Central Nervous System Meningal symptoms Reproductive Cases of infertility in males

4 Historical Accounts 1876 Larvae and strongyloidiasis were both discovered by Louis Alexis Normand 1883 German parasitologist Karl Georg Friedrich Rudolf Leuckart discovered the alternation of generations involving parasitic and free-living phases discovery that infection occurred through the skin was made by Belgian physician Paul Van Durme Friedrich Fülleborn described the phenomenon of autoinfection For over half a century, S. stercoralis received little attention until prisoners of war who had acquired their infections in the Far East in the 1940s revealed disseminated infections in immunosuppressed patients

5 Cultural Spread Irrigation in underdeveloped developed countries
Activities in which people are barefoot in an infection-prone area. Religious ceremonies Sporting events hunting

6 Human Movement and Distribution
Est million infected worldwide Immigration from endemic areas Sub-Saharan Africa, South and Southeast Asia, Central America, and South America, and parts of Eastern Europe are considered endemic areas. Worldwide prevalence is estimated as 2-20% in endemic areas

7 Treatments & Measures To Prevent
Nematocides Wear proper footwear Proper waste disposal Albendazole Works by inhibiting glucose intake by nematodes. Side effects are mild

8 Infrastructure & Anthrpogenic changes
More prevalent in areas where sewage is used for irrigation. Water purification in endemic areas is hard to come by. Quality healthcare is within reach, but sometimes too expensive. Better plumbing in countries has led to less disease spread Certain nematocides have been developed


Download ppt "Strongyloides stercoralis"

Similar presentations


Ads by Google