| Popis: |
Protozoa are single-celled (unicellular) eukaryotic organisms. There are many protozoa causing parasitic infection in humans. This chapter will concentrate on the three that most commonly causes gastrointestinal disease worldwide and have the biggest impact in the UK: Giardia lamblia, Cryptosporidium spp., and Entamoeba histolytica. These three infections are of great significance worldwide, but are less common in Western settings. In the UK, they tend to be seen in more commonly in travellers returning from endemic countries, migrant populations, men who have sex with men, and the immunocompromised. The clinical features of all three infections vary from asymptomatic small- or large-bowel carriage with passage of cysts to infect others, to more serious manifestations. |
