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Cryptosporidium spp: An underdiagnosed cause of diarrhea
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health.
2018 (Swedish)Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Gastrointestinal infections are among the most common infections in humans. These infections can be difficult to diagnose since bacteria, viruses and other parasites often give the same symptoms such as stomach pains, fever and diarrhea.

                      Parasitic infections are generally associated with tropical climate which complicates diagnosis in northern countries like Sweden. This point of view was changed drastically when one of Europe’s biggest waterborne outbreaks of Cryptosporidium in 2010, was discovered in Sweden. Ever since, the interest in cryptosporidium diagnosis has increased. However, the prevalence seems to differ widely between the counties in Sweden and the difference seems to be associated with the chosen analysis method and frequency of analysis. The purpose of the study was to get a better idea of the cryptosporidium incidence in Västernorrland by analyzing samples with a broader issue. The method used was modified Ziehl-neelsen staining and light microscopy for all samples that were diagnosed as negatives to the culture of Salmonella, Shighella, Campylobacter and Yersinia. There were no positive results in the present study, so we could not find evidence of the thesis. However, the study had many shortcomings such as the samples being procured in the wrong season while also having a wide selection of samples without taking clinical symptoms into account. The use of coal agar also interfered with the microscopical analysis.

Place, publisher, year, edition, pages
2018. , p. 16
Keywords [sv]
Prevalence study, Västernorrland, Sweden, Modified Ziehl-Neelsen, Parasitic infections, Light microscopy
National Category
Biomedical Laboratory Science/Technology
Identifiers
URN: urn:nbn:se:uu:diva-357526OAI: oai:DiVA.org:uu-357526DiVA, id: diva2:1239656
Educational program
Biomedical Laboratory Science Programme; Biomedical Laboratory Science Programme
Supervisors
Examiners
Available from: 2018-11-29 Created: 2018-08-17 Last updated: 2018-11-29Bibliographically approved

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