Loa Loa

Question 1

Where do you get loa loa cases?

Answer 1

Central and west Africa Forrest areas

Question 2

What is the vector for loa Loa?

Answer 2

Chrysops fly

Question 3

Where do the adult loa loa worms live?

Answer 3

Subcutaneous tissues

Question 4

Where do the Loa Loa microfilariae live?

Answer 4

Blood during the day

Question 5

What do the loa loa microfilariae look like?

Answer 5

Over 200microm
Short head space
Nuclei non distinct and irregularly spaced to tip

Question 6

How does loa loa present?

Answer 6

Eye worms

Calabar swellings- 10-20cm, angioedema non-erythematous swellings

Question 7

How do you diagnose loa loa?

Answer 7

Eye worms
Microfilariae in midday blood- filtered with a polycarbonate filter
PCR

Question 8

How do you treat Loa Loa?

Answer 8

Check MF load
If <2500 then DEC TDS 21/7
If >2500 then albendazole for 21/7 then DEC

High MF load will cause encephalopathy with DEC and ivermectin

Question 9

How do you identify chrysops?

Answer 9

3 segmented antennae
1cm in size
Brown banded wings that are held apart at rest