Filarial worms

Question 1

what is this?

Answer 1

Female adult double uterus of filarial worm

Question 2

what is this organism and describe it?

Answer 2

Wucheria Bancrofti microfilaria - has a sheath, staining pink on giemsa stain and it has no nuclei to its pointed tail. individual nuclei are more distinct going down the body.

Question 3

what is this organism and describe it?

Answer 3

Brugia Malayi microfilaria- has a sheath, 2 x discrete nuclei at the end of the tail.

Question 4

what is this organism and describe it?

Answer 4

Loa Loa microfilaria -“ ghost sheath “stained with giemsa - does not stain. Nuclei go all the way down to the tail.

Question 5

what is this organism

Answer 5

loa loa microfilaria

Question 6

what is this organism?

Answer 6

wucheria Bancroft microfilaria

Question 7

what is this organism?

Answer 7

what is this organism?

Question 8

what microfilaria organisms do not have a sheath?

Answer 8

mansonella spp - (perstans + streptocerca) and onchocerca volvulus

Question 9

what microfilaria organisms DO have a sheath?

Answer 9

wucheria Bancroft, Brugia Malayi and loa loa

Question 10

what organism is this?

Answer 10

mansonella perstans - see the nucleus right at the tip and NO sheath. nuclei go all the way to the tip.

Question 11

what organism is this?

Answer 11

thin tail no nuclei

Question 12

what organism is this?

Answer 12

Mansonella streptocerca. -curled tail + nuclei extend to head.

Question 13

what is the vector of loa loa?

Answer 13

chrysops deer flies