The Schistosomiasis Story: Climate Change's Hidden Risk
In this insightful episode of "Conversations on Climate Change and Health," we unpack how a warming world is reshaping our well-being by acting as a powerful risk multiplier for infectious diseases. We zoom in on schistosomiasis, a waterborne parasitic disease that is becoming more widespread, persistent, and harder to control as rainfall patterns shift, floodwaters rise, and temperatures warm, creating new habitats for disease-carrying organisms.
Our special guest, Madam Fatima Amponsah, a lecturer in the Microbiology Department at the University for Development Studies in Tamale, Ghana, shares her expertise on this neglected tropical disease. She explains that schistosomiasis, also known as bilharzia, is caused by a parasite that enters the body through contact with contaminated water bodies, with water snails acting as carriers. While over 250 million people are affected globally, a staggering 90% of this population is from sub-Saharan Africa, including over 10 million people in Ghana.
Madam Amponsah draws a clear connection between climate change and the disease's transmission, noting that the parasite and its host thrive in optimum temperatures of 27 to 35∘C, which are now being exceeded due to climate change. She highlights how water scarcity, caused by less rainfall and the drying up of water bodies, forces communities in places like the Tolon District of northern Ghana to depend on contaminated dams originally meant for agriculture, thereby perpetuating the infection cycle.
The episode sheds light on the severe impact of schistosomiasis, particularly on women and girls in these communities. Their role in fetching water exposes them to the parasite, leading to female genital schistosomiasis. This often results in girls dropping out of school.
We delve into effective strategies and interventions, emphasizing the need for clean and segregated water systems for both humans and animals, widespread awareness campaigns linking climate change to parasitic infections, and comprehensive treatment programs that include all affected community members, not just school-going children. Madam Amponsah stresses that schistosomiasis, being the second most prevalent neglected tropical disease after malaria, requires equal attention and resources.
The episode concludes with a powerful call to action for governments, non-governmental organizations, donor agencies, and community members to collaborate in fighting schistosomiasis. It underscores that proper sanitation is crucial for interrupting the parasite's cycle. Join us to understand this silent threat and learn how tackling climate change can create healthier futures for all.
