brugia malayi in blood, a roundworm nematode

animal background blood bloodstream brugia cell condition diagram disease disorder drainage edema elephantiasis filariasis fluid human illustration insect insectborne larva leg limb lymph lymphatic lymphedema lymphoedema malayi medical medicine microfilaria microfilariae microscope microscopic mosquito mosquitoborne neglected nematode parasite parasitic parasitism red sheathed smear swelling swollen system tropica unhealthy worm