Lab content Flashcards
Wuchereria bancrofti - disease
Lymphatic filiariasis - elephantiasis, lymphoedema caused by adult worms in the lymphatic vessels
Wuchereria bancrofti - vector
Culcine and anopheles mosquitoes
Wuchereria bancrofti - giemsa staining features
- Pink sheath
- No nucleus in the tail (BANned)
Brugia malayi - disease
Lymphatic filariasis due to adult worms in the lymphatics
Brugia malayi - vectors
Mansonia, Anopheles mosquitoes
Brugia malayi - giemsa staining features
- Pink sheath
- 2 nuclei in the tail (two for bru)
Loa loa - disease
Eye migration
Calabar swellings (hypersensivitiy reactions)
Loa loa - vector
Deerfly (chrysops)
Loa loa - features on giemsa staining
- Ghost sheath (does not stain)
- Flattened nuclei go all the way to the end (lower and lower)
Onchocerca volvulus - giemsa staining
- No sheath
- No nucleus in the tail
- Bigger than mansonella
Mansonella species - giemsa staining
Smaller and narrower
Small nuclei at the end (shepherd’s hook)
Mansonella vector
Midges/blackflies
Sandfly features
Sandy coloured, very hairy body and wings
Blackfly features
Hunchback, very clear wings
Biting midge features
Wings with dark and paler patchiness
Anopheles vs culcine heads
- Palps. Short —> Female culcine. If long…
- If the antennae are fluffy it’s a male
- Then to distinguish if it’s anopheles or culcine –> has a more spade like antennae in anopheles
Tse tse fly
Meat cleaver feature in the wing
Deerfly - key feature and disease
Hexagon feature in the wing with dark bands features
Loa loa
Culex mosquito key feature
Boring and brown