Neglected Tropical Diseases (NTDs) encompass a range of communicable diseases that impact over one billion individuals annually. This group of diseases is labeled as “neglected” due to the lack of attention they typically receive compared to other illnesses. NTDs predominantly prevail in developing regions with limited access to healthcare, sanitation, and clean water. It is important to note that these diseases can also develop in the most impoverished areas of developed nations, including the United States.
Onchocerciasis (River Blindness)
Onchocerciasis, commonly known as river blindness, is a parasitic infection that causes intense itching, rashes, and changes in skin color. In severe cases, it can also lead to permanent blindness. River blindness is the second most prevalent cause of infectious blindness worldwide. Humans acquire the disease through the bite of a blackfly that is infected with the parasite. These blackflies are found in specific regions, typically near fast-flowing rivers and streams.
Early treatment with anti-parasitic medication can help alleviate symptoms and prevent long-term complications associated with the disease. Through international initiatives, significant progress has been made in reducing the number of individuals at risk for river blindness and preventing blindness in thousands of affected individuals.
Prevalence of Soil-Transmitted Helminths
Soil-transmitted helminth infections are highly common worldwide. These infections are primarily caused by the presence of eggs in human feces, which contaminate the soil in areas with inadequate sanitation. The most common types of soil-transmitted helminths include roundworm, hookworm, and whipworm.
Individuals infected with soil-transmitted helminths may experience a range of symptoms, including nutritional deficiencies, diarrhea, abdominal pain, general weakness, and overall malaise. Moreover, these infections can significantly hinder the physical development and growth of children.
Recognizing the severity of this issue, the World Health Assembly took action in 2001 by urging endemic countries to actively participate in controlling the spread of soil-transmitted helminths. The recommended strategy involves periodic treatment of individuals at high risk of infection.