The parasite larvae are transmitted to humans through bite wounds from the deer fly, genus Chrysops. Loa loa 1. Life cycle: Genus— Loa: The word Loa derives from African dialect (Roberts and Janovy 2000). Three species involved in the life cycle include the parasite Loa loa, the fly vector, and the human host: Causal Agent. • Life cycle-The worm passes its life cycle in two hosts: Man Chrysops ( mango or deer flies) • Larval development follows the same course as in other microfilariae. Morphology: Morphology Loa loa worms have a simple body including a head, body, and tail.

L. loa worms have a simple body consisting of a head that lacks lips, a body, and a blunt tail. Morphology. Males range from 20mm to 34mm long and 350μm to 430μm wide. Morphology. They possess a sheath which stains blue-grey with Delafield’s haematoxylin. Genus— Loa: The word Loa derives from African dialect (Roberts and Janovy 2000). Based on the morphology seen on the blood smear, the patient was diagnosed with asymptomatic Loa loa infection.. Loa loa filariasis is a parasitic infection endemic to the rainforests of Western and Central Africa, particularly common in Cameroon, Congo, and Nigeria. Males of T. spiralis measure between 1.4 and 1.6 mm long, and are more flat anteriorly than posteriorly. Males range from 20mm to 34mm long and 350μm to 430μm wide. Loa loa worms have a simple body including a head, body, and tail. CONTENTS Introduction History of discovery Morphology Vector/Transmission Epidemiology Life cycle Incubation period Clinical Presentation Diagnosis Treatment Prevention • Mf. Figure 2. Loa loa infection may be present as asymptomatic microfilaremia, with the infection being recognized only after subconjunctival migration of an adult worm (the so-called eye worm). Ref 5 . DEVELOPMENT AND LARVAL MORPHOLOGY OF LOA LOA IN EXPERIMENTAL PRIMATE HOSTS Mark L. Eberhard and Thomas C. Orihel Delta Regional Primate Research Center, Covington, Louisiana 70433 ABSTRACT: Experimental infections with Loa loa were established in laboratory primates by inoculation

Loa is a word that derived from African dialect (Roberts and Janovy 2000). • Loa-loa is maintained in natu re by interhuman transmission. The tail gradually tapers to a rounded end, the densely packed nuclei extending to the tip. Answer: Loa loa. Females range from 20mm to 70mm long and are about 425μm wide. Franz M, Melles J, Büttner DW. • The column of nuclei extends to the tail tip. 'Loa loa' filariasis is a disease of the skin and eyes that is caused by a parasitic worm. Loa loa, a filarid nematode commonly referred to as the African eye worm.. Life Cycle. Life cycle. LOA LOA (African Eye Worm) ARISHA IBRAHIM ROLL NO: 105 3rd YEAR MBBS 2.

Females range from 20mm to 70mm long and are about 425μm wide. Loa is enveloped in a sheath and measures 300µm by 7µm. Morphology. The vector for Loa loa filariasis are flies from two species of the genus Chrysops, C. silacea and C. dimidiata.During a blood meal, an infected fly (genus Chrysops, day-biting flies) introduces third-stage filarial larvae onto the skin of the human host, where they penetrate into the bite wound . Morphology The microfilariae of Loa loa are 250 - 300 .

Loa loa worms have a simple body including a head, body, and tail. The anus can be found in the terminal end, and they have a large copulatory pseudobursa on each side. Species — Loa loa: The Species name Loa loa was givin to this organism because of its African descent. The morphology of the body wall and the gut in the midbody region of adult male and female Loa loa originating from patients in Gabon was studied by transmission and scanning electron microscopy. Loa loa filariasis is a skin and eye disease caused by the nematode worm Loa loa.Humans contract this disease through the bite of a deer fly or mango fly, the vectors for Loa loa.The adult Loa loa filarial worm migrates throughout the subcutaneous tissues of humans, occasionally crossing into subconjunctival tissues of the eye where it can be easily observed. The adult worm wanders through the subcutaneous tissue but is most obvious as it crosses the conjunctiva of the eye hence leading to its common name, the African eye worm. Males range from 20mm to 34mm long and 350μm to 430μm wide.

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