Comparative study between direct microscopy and indirect haemagglutination methods used in diagnosis of urinary schistosomiasis

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جامعة الشيخ عبدالله البدري
Background Urinary schistosomiasis is a disease caused by infection of people with the parasitic worm Schistosoma haematobium. These worms live in blood vessels around the infected person’s bladder and the worm releases eggs which are released in the person’s urine. If the urine is passed into ponds or lakes, the eggs can hatch and infect people that are washing or swimming there. Infection can cause blood in the urine and if left untreated can eventually lead to anaemia, malnutrition, kidney failure, or bladder cancer. Objectives: To compare between direct microscopy and indirect haeagglutination methods. Materials and methods: Comparative study, 73 urinary schistosomiasis patients were involved in it, both urine and blood were collected and examined by appropriate technique (urine examined by direct microscopy and blood by indirect haemagglutination method). Direct microscopy: a. Sensitivity: 100% b. Specificity: 100% Indirect haemagglutination method: 1. Sensitivity: 100% 2. Specificity: 95.8% Discussion: The high sensitivity of directy microscopy is attributed to the intensity of infection among participants whom were moderately and severely infected with urinary schistosomiasis. Conclusion: Both techniques showed high degree of sensitivity and specificity in endemic area with urinary schistosomiasis. Recommendations: Further studies are required involving more participants and using more diagnostic methods and including areas with variant endemicity of urinary schistosomiasis.