Culex (Mosquito) Antennae The male mosquito has large bushy antennae, which he uses to listen for the buzz of a potential mate. He responds only to the humming frequency given by a female of the same species and will fly in the direction of the sound to mate with her. Male mosquitoes do not bite, but feed on plant juices and flower nectar. Only female mosquitoes bite animals and require a blood meal.
Elephantiasis caused by lymphatic filariasis This patient was most likely infected by Wuchereria bancrofti, as Brugia malayi and Brugia timori are very regionally-specific to the areas around Timor and Malaysia. W. bancrofti was originally endemic only to West and Central Africa, until it was introduced to the Caribbean and Southern United States by the slave trade. There was an unusually high prevalence around Charleston, South Carolina, until it suddenly disappeared in the early 1920s. As…
Life cycle of Wuchereria bancrofti - one type of nematode (roundworm) that causes Lymphatic Filariasis or LF. Wuchereria bancrofti: elephantiasis, bancroft’s filariasis. Adult filariae live in human tissue producing live embryos (microfilariae) which migrate to lymph system, blood, or skin. Require live arthropod intermediate host.
Huang Chuancai's case of elephantiasis of the face is considered the world's worst. Elephantiasis, or Lymphatic Filariasis, is a rare disorder of the lymphatic system caused by parasitic worms such as Wuchereria bancrofti, Brugia malayi, and B. timori, all of which are transmitted by mosquitos. Inflammation of the lymphatic vessels causes extreme enlargement of the affected area, most commonly a limb or parts of the head and torso. It occurs most commonly in tropical regions.