onchocerca volvulus การใช้
- The other two are " Mansonella streptocerca and Onchocerca volvulus " ( causes river blindness ).
- Onchocerca volvulus is a white worm only 1.5 centimeters ( . 6 of an inch ) long.
- Examination of skin snips will identify microfilariae of " Onchocerca volvulus " and " M . streptocerca ".
- Onchocerca volvulus is a white worm only 1 . 5 centimeters ( . 6 of an inch ) long.
- It is caused by the nematode " Onchocerca volvulus ", which is transmitted to people via the bite of a black fly.
- River blindness is a disease caused by the parasitic worm Onchocerca volvulus, spread by the bites of tiny black flies that breed in fast-moving river water.
- Black fly ( " Simulium yahense " ) with parasite ( " Onchocerca volvulus " ) emerging from the insect's antenna . 100x magnification by scanning electron microscope.
- Positive density-dependence processes may also occur in macroparasite infections that lead to immunosuppression . " Onchocerca volvulus " infection promotes immunosuppressive processes within the human host that suppress immunity against incoming infective L3 larvae.
- It contains one human parasite-" Onchocerca volvulus "-which is responsible for the neglected disease Onchocerciasis, also known as " River Blindness " because the infected humans tend to live near rivers where host black flies live.
- River blindness, endemic through equatorial Africa and in Central and South America, is caused by the parasitic worm Onchocerca volvulus, which is spread by the bites of tiny black flies that breed in fast-moving river water.
- Additionally, to differentiate the skin-dwelling filariae " M . streptocerca " and " Onchocerca volvulus ", a nested polymerase chain reaction ( PCR ) assay was developed using small amounts of parasite material present in skin biopsies.
- Besides the terrible itch, this variety wrinkles and spots the skin and causes other pains and troubles, said Dr . Tore Godal, who heads a new World Health Organization project to rid Africa of onchocerca volvulus within 10 years.
- Cytotaxonomic analysis of larval chromosomes from the Kulfo River area has revealed the existence of two newly recognized species of S . soderense "; yet unlike other Black flies these species are not carriers of " Onchocerca volvulus ".
- These filarial nematodes and their animal hosts are often used as models for studies on the biology of human infection . " Acanthocheilonema viteae " shares considerable antigenic homology with the human filarial worm " Onchocerca volvulus "; this allows for rapid analysis of larval development which is essential to efforts in vaccine development ( Eisenbeiss et al ., 1991 ).