Topics for Parasitology
Find educational topics for Parasitology aligned with the Zambian tertiary curriculum.
External Autoinfection in Strongyloides
No questions yet
This module covers external autoinfection in Strongyloides, where larvae on perianal skin transform into infective forms and penetrate the skin to re-enter the host. Zambian tertiary students will study this route of self-reinfection that contributes to persistent infection. Understanding external autoinfection helps explain why Strongyloides infections can be so difficult …
Risk Factors for Strongyloides Hyperinfection
No questions yet
This topic identifies the main risk factors that predispose to Strongyloides hyperinfection syndrome. Zambian medical students will learn about immunosuppressive conditions including corticosteroid therapy, HIV/AIDS, HTLV-1 infection, and organ transplantation. Understanding these risk factors is crucial for clinical practice in Zambia, where HIV prevalence is high and immunosuppressive therapies are …
Clinical Presentation of Strongyloides Hyperinfection
No questions yet
This module details the clinical features of Strongyloides hyperinfection syndrome. Zambian medical students will study the signs of larval dissemination including worsening gastrointestinal symptoms, respiratory distress, meningitis, and Gram-negative sepsis. The topic emphasizes that eosinophilia may be absent in immunosuppressed patients. Understanding this presentation is critical for emergency medicine and …
Onchocerca Corneal Microfilariae
No questions yet
This topic examines the presence and effects of Onchocerca microfilariae in the cornea. Zambian ophthalmology and tropical medicine students will learn about punctate keratitis (snowflake opacities) caused by dying microfilariae in the corneal stroma. Understanding this early ocular manifestation is important for recognizing onchocerciasis before more severe damage occurs. This …
Sclerosing Keratitis in Onchocerciasis
No questions yet
This module covers sclerosing keratitis, the advanced corneal scarring in onchocerciasis that leads to blindness. Zambian medical students will study how chronic inflammation from microfilariae causes corneal fibrosis and opacification starting from the inferior limbus. Understanding this progressive pathology is crucial for appreciating how river blindness develops over time. This …
Onchocerca Anterior Uveitis
No questions yet
This topic examines anterior uveitis caused by Onchocerca microfilariae in the anterior chamber. Zambian ophthalmology students will learn about iridocyclitis, pupil distortion, and secondary glaucoma that result from inflammation. Understanding this component of ocular onchocerciasis is important for comprehensive eye assessment in endemic areas. This specialized knowledge is valuable for …
Posterior Segment Damage in Onchocerciasis
No questions yet
This module focuses on posterior segment eye damage in onchocerciasis, including chorioretinitis and optic atrophy. Zambian medical students will learn how microfilariae reaching the back of the eye cause inflammation and irreversible damage to the retina and optic nerve. Understanding this posterior pathology is crucial for appreciating the complete picture …
Onchocerca Skin Manifestations: Acute Phase
No questions yet
This topic covers the acute skin manifestations of onchocerciasis, including the popular rash known as 'craw-craw'. Zambian dermatology and tropical medicine students will study the pruritic papular dermatitis that characterizes early infection. Understanding these initial skin changes is important for early diagnosis and for differentiating onchocerciasis from other pruritic skin …
Chronic Onchocerca Skin Changes
No questions yet
This module examines the chronic skin changes in long-standing onchocerciasis. Zambian medical students will study lichenification, atrophy ('lizard skin'), and depigmentation ('leopard skin') that develop over years of infection. Understanding these chronic manifestations is important for recognizing advanced disease and assessing disease burden in communities. This knowledge is crucial for …