We use cookies to imporve your experience. By using our site, you consent to our cookie policy Learn more
arrow arrow_up breadcrumb-chevron-right breadcrumb-home dropdown-arrow-down loader GALogoWUNEP GALogo2018 GALogo2019 menu read-more-plus rrss-email rrss-facebook rrss-flickr rrss-instagram rrss-linkedin rrss-twitter rrss-vimeo rrss-youtube rrss_google_plus rrss_skype rrss_web pdf search share Completed In Process Ideas In Develpment Toogle Toogle Thumbnail View List View play close filter-collapse filter edit media_photo_library media_video_library graphics pictures videos collections next

Schistosomiasis prevalence in Africa

Schistosomiasis, also referred to as ‘bilharzia’ and ‘snail fever’, affects more than 200 million people, the majority of whom live in sub-Saharan Africa (Lai et al. 2015). Infection in humans is caused by contact with water that is infested with trematode flukes carried by freshwater snails. The larvae penetrate the skin of people who come into contact with infested water. The larvae then develop into adult worms in the body, colonizing the blood vessels, where they effectively invade the immune system. They can release hundreds of thousands of eggs a day, some of which are excreted in faeces or urine, while others are trapped in nearby tissues (Colley et al. 2014). The trapped eggs produce an immune response, causing chronic diseases such as anemia, stunted growth, impaired cognition and heart, liver, urinary and gastrointestinal complications.

Year: 2020

From collection: Sanitation and Wastewater Atlas of Africa - Human Health

Cartographer: GRID-Arendal

Tags: Africa sanitation wastewater

Graphics included in same album

View all media

Publications it appears in

View all publications

Related activities

View all activities