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| {| class="wikitable"
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| !Type of filariasis
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| !Causative nematode
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| !Vectors
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| !Life cycle
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| !Illustrative image
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| !Comments
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| |-
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| | rowspan="2" |Lymphatic filariasis
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| |[[Wuchereria bancrofti]]
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| * Culex as C. pipiens
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| * Aedes as A. aegypti
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| * [[Anopheles]] as A. arabinensis
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| * Coquillettidia.as C. juxtamansonia
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| | rowspan="2" |
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| * Infected mosquito bite introduces the third stage larva onto the skin and then enters to the blood through the wound.
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| * The larvae develop to adult which reside in the '''lymphatic vessels'''.
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| * Adult worm produce sheathed microfiliae that migrate to lymph and blood. They have '''nocturnal periodicity'''.
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| * Another mosquito ingests the microfiliae.
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| * The microfilariae lose their sheaths and work their way through the wall of the proventriculus and cardiac portion of the [[midgut]] to reach the thoracic muscles
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| * Microfiliae grow up inside the mosquito till third stage larvae.
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| * In another bite to a host skin the mosquito introduces the larvae onto the skin.
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| | rowspan="2" |[[Image:W bancrofti LifeCycle.gif|350 px|center]]
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| | rowspan="2" |
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| * The difference between the nematodes causing lymphatic filariasis is in the shape and size of the worm.
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| * The Brugia worms are similar to the W. bancrofti but smaller.
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| |-
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| |[[Brugia timori]] and [[Brugia malayi]]
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| * Mansonia
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| * Aedes
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| | rowspan="4" |Subcutaneous filariasis
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| |[[Loa loa filaria]]
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| * Chrysops
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| * C. silacea
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| * C. dimidiata
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| | rowspan="4" |
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| * Infected fly bite introduces the third stage larva onto the skin and then enters to the blood through the wound.
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| * The larvae develop to adult which reside in the '''subcutaneous tissue'''.
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| * Loa Loa adult worm produce sheathed microfilariae that are found in the blood during day and in the lungs during the non circulating phase. They have '''diurnal periodicity'''.
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| * Another fly ingests the microfiliae.
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| * After ingestion, the microfilariae lose their sheaths and migrate from the fly's [[midgut]] through the [[hemocoel]] to the thoracic muscles of the [[arthropod]].
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| * Microfiliae grow up inside the fly till third stage larvae.
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| * The third-stage infective larvae migrate to the fly's proboscis and in another bite the cycle restarts.
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| | rowspan="4" |[[Image:L loa LifeCycle.gif|350 px|center]]
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| | rowspan="4" |
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| * Unlike Loa Loa filaria, Mansonella streptocerca , Mansonella ozzardi and Onchocerca volvolus produce '''unsheathed non-periodic microfilariae'''.
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| * Mansonela streptocerca adults residue in the dermis.
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| * Onchocerca volvulus adults residue mainly in the subcutaneous nodules. Their microfilariae can be found in the peripheral [[blood]], [[urine]], and [[sputum]] but are typically found in the [[skin]] and in the [[Lymphatic|lymphatics]] of connective tissue.
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| |-
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| |[[Mansonella streptocerca]]
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| * Midge (genus Culicoides)
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| |-
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| |[[Mansonella ozzardi]]
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| * Midge (genus Culicoides)
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| |-
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| |[[Onchocerca volvulus]]
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| * Blackfly (genus Simulium)
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| |-
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| |Serous cavity filariasis
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| |[[Mansonella perstans]]
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| * Midge (genus Culicoides)
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| * Blackfly (genus Simulium)
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| * Infected midge bite introduces the third stage larva onto the skin and then enters to the blood through the wound.
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| * The larvae develop to adult which reside in the different body cavities like [[peritoneal cavity]], [[pleural cavity]], and less frequently in the [[pericardium]].
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| * Adult worm produce unsheathed subperiodic microfilariae that reaches the blood stream.
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| * Another midge ingests microfilariae during a [[blood]] meal.
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| * After [[ingestion]], the microfilariae migrate from the midge's [[midgut]] through the [[hemocoel]] to the thoracic muscles of the [[arthropod]].
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| * Microfiliae grow up inside the midge till third stage larvae.
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| * The third-stage infective larvae migrate to the midge's proboscis and in another bite the cycle restarts.
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| |[[Image:M perstans LifeCycle.gif|350 px|center]]
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| |}
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| Life cycles of the roundworms causing filariasis:
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