BLOOD AND TISSUE NEMATODES (FILARIAE)

Question 1

ARTHROPOD VECTOR

Mosquitoes (Aedes, Culex,
Anopheles, Mansonia spp.)

Answer 1

Wuchereria bancrofti

Question 2

ARTHROPOD VECTOR
Mosquitoes (Mansonia spp.)

Answer 2

Brugia malayi

Question 3

ARTHROPOD VECTOR
Deerflies/Mangoflies
(Chrysops spp.)

Answer 3

Loa loa

Question 4

ARTHROPOD VECTOR
Midges (Culicoides spp.)

Answer 4

Mansonella perstans
Mansonella ozzardi
Mansonella streptocerca

Question 5

ARTHROPOD VECTOR
Blackflies (Simulium spp.)

Answer 5

Onchocerca volvulus

Question 6

HABITAT is Lower lymphatics

Answer 6

Wuchereria bancrofti

Question 7

HABITAT is Upper lymphatics

Answer 7

Brugia malayi

Question 8

HABITAT is Subcutaneous tissues and eyes

Answer 8

Loa loa
Onchocerca volvulus

Question 9

HABITAT is Body cavities

Answer 9

Mansonella perstans
Mansonella ozzardi

Question 10

HABITAT is Dermis of skin

Answer 10

Mansonella streptocerca

Question 11

DISEASE/S CAUSED
Lymphedema of the limbs,
breast, or scrotum

Answer 11

W. bancrofti

Question 12

DISEASE/S CAUSED
Elephantic lesions in the
upper limbs

Answer 12

B. malayi

Question 13

DISEASE/S CAUSED
Calabar or fugitive swelling

Answer 13

Loa loa

Question 14

DISEASE/S CAUSED
Pruritic papules

Answer 14

M. streptocerca

Question 15

DISEASE/S CAUSED
Onchocercoma,
river blindness

Answer 15

O. volvulus

Question 16

Microfilaria is seen in BLOOD specimen

Microfilaria is seen in SKIN NIPS or BIOPSY

Answer 16

Blood: W. bancrofti, B. malayi, L. loa, M. perstans, M. ozzardi

SKIN NIPS / BIOPSY: M. streptocerca and O. volvulus

Question 17

Sheathed Microfilariae

Answer 17

W. bancrofti
B. malayi
L. loa

Question 18

UNSheathed Microfilariae

Answer 18

M. perstans
M. ozzardi
M. streptocerca
O. volvulus

Question 19

Nuclei do not extend to the tip of tail “BDO”

Answer 19

W. bancrofti
M. ozzarDi
O. volvulus

Question 20

Nuclei extends to the tip of tail “LPS”

Answer 20

L.loa
M. perstans
M. streptocerca “Sheperd`s crook”

Question 21

With 2 distinct terminal nuclei

Answer 21

B. malayi

Question 22

periodicity of between 10pm to 2am; blood is collected at NIGHT

Answer 22

Nocturnal periodic
W. bancrofti

Question 23

microfilaria found in blood duirng DAYTIME and collected between 11am to 1pm

Answer 23

Diurnal periodic
L. loa

Question 24

microfilaria is found in blood during both DAY & NIGHT (but more prominent during NIGHT)

Answer 24

Nocturnal subperiodic
B. malayi

Question 25

microfilaria is found in blood during day & night but NO DIFFERENCE in numbers.

Answer 25

Non periodic
M. perstans
M. ozzardi
M. streptocerca
O. volvulus

Question 26

Infective stage to MAN

Answer 26

L3 (3rd stage larva) by arthropods

Question 27

Diagnostic stage

Answer 27

microfilaria