river blindness
Học thuậtThân thiện
A person in a tropical region wears protective clothing to avoid the black flies that can cause river blindness.
Definition
- Noun:
- A tropical disease: "River blindness" is the common name for a specific parasitic disease. It is caused by infection with a type of slender, threadlike worm. The disease is transmitted to humans through the bite of infected blackflies that breed in fast-flowing rivers. A major symptom is severe itching of the skin. When the parasite larvae migrate to the eyes, the resulting inflammation can lead to permanent blindness.
Usage Examples
- Noun:
- The World Health Organization has programs to control and eliminate river blindness.
- Communities living near rivers are often at high risk for river blindness.
- The drug ivermectin is used to treat and prevent river blindness.
Advanced Usage
- "Onchocerciasis": This is the formal medical and scientific term for "river blindness."
- Onchocerciasis, commonly known as river blindness, is a neglected tropical disease.
Variants and Related Words
- Onchocerciasis (n): The medical term for river blindness.
- Onchocerca volvulus (n): The scientific name of the parasitic worm that causes the disease.
- Blackfly / Simulium (n): The type of fly that transmits the parasite.
Synonyms
- Onchocerciasis: The direct technical synonym.
Related Phrases
- Neglected tropical disease (NTD): River blindness is classified within this group of diseases.
- As a neglected tropical disease, river blindness primarily affects populations in poverty.
A person in a tropical region wears protective clothing to avoid the black flies that can cause river blindness.
Noun
- infestation with slender threadlike roundworms (filaria) deposited under the skin by the bite of black fleas; when the eyes are involved it can result in blindness; common in Africa and tropical America