Human infection patterns and heterogeneous exposure in river blindness
نویسندگان
چکیده
منابع مشابه
Human infection patterns and heterogeneous exposure in river blindness.
Here we analyze patterns of human infection with Onchocerca volvulus (the cause of river blindness) in different continents and ecologies. In contrast with some geohelminths and schistosome parasites whose worm burdens typically exhibit a humped pattern with host age, patterns of O. volvulus infection vary markedly with locality. To test the hypothesis that such differences are partly due to he...
متن کاملOnchocerciasis--river blindness.
Onchocerciasis results from infestation by the nematode Onchocerca volvulus and is characterized by troublesome itching, skin lesions, and eye manifestations. Although partially controlled by international mass prevention programs, onchocerciasis remains a major health hazard and is endemic in Africa, Arabia, and the Americas. Onchocerciasis is spread by bites from infested black flies, which t...
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although there are studies on pragmatic assessment, to date, literature has been almost silent about native and non-native english raters’ criteria for the assessment of efl learners’ pragmatic performance. focusing on this topic, this study pursued four purposes. the first one was to find criteria for rating the speech acts of apology and refusal in l2 by native and non-native english teachers...
15 صفحه اولHerpes eye infection and blindness?
It's true: the herpes virus can infect various parts of the eye, including the eyelid, cornea, and parts of the inner-eye [2]. Thankfully, you can still safely make steamy eyes with someone across with room without worry ? similar to other herpes infections, the ocular variety is transmitted through skin-to-skin contact. Although this type of infection is fairly uncommon (affecting about 50,000...
متن کاملHerpes eye infection and blindness?
It's true: the herpes virus can infect various parts of the eye, including the eyelid, cornea, and parts of the inner-eye [2]. Thankfully, you can still safely make steamy eyes with someone across with room without worry ? similar to other herpes infections, the ocular variety is transmitted through skin-to-skin contact. Although this type of infection is fairly uncommon (affecting about 50,000...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2005
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.0502659102