Free-living pathogenic amoeba

Question 1

Commonly known as brain eating amoeba, amoeboflagellate

Answer 1

Naegleria fowleri

Question 2

Causes a rare infection of the brain called primary amoebic meningoencephalitis (PAM) which mimics a an acute bacterial meningitis and most of them are fatal

Answer 2

N. fowleri

Question 3

Dormant form of N. fowleri

Answer 3

Cyst

Question 4

The _____ is produced when environmental conditions become unfavorable

Answer 4

Resistant cyst stage

Question 5

The resistant cyst is _____ with a ___cyst wall

Answer 5

uninucleated, double

Question 6

Amoeboid trophozoite is ___-shaped

Answer 6

slug-shaped

Question 7

The flagellate form of N. fowleri is ____-shaped

Answer 7

Pear-shaped

Question 8

Infective stage of N. fowleri

Answer 8

Trophozoite

Question 9

The trophozoite of N. fowleri infects humans through the ____

Answer 9

nose

Question 10

Where is the trophozoite of N. fowleri found in infected humans?

Answer 10

CSF and tissue

Question 11

Naeglaria isolated species in the PH from
thermally polluted stream, artificially heated swimming pool, and brain aspirate of a young patient

Answer 11

N. philippinensis

Question 12

This amoeba can cause Amoebickeratitis and
GAE

Answer 12

Acanthamoeba

Question 13

Prominent “thorn-like” appendages of Acanthamoeba

Answer 13

Acanthopodia

Question 14

Description of Acanthamoeba ectocyst

Answer 14

Wrinked

Question 15

Description of Acanthamoeba endocyst

Answer 15

Polyhedral or stellate

Question 16

Infective stage of Acanthamoeba

Answer 16

Trophozoites

Question 17

Tissue invasion of Acanthamoeba is relatively_____ slow, and stimulates
______ formation

Answer 17

relatively slow
granuloma formation

Question 18

_____ is associated with the use of improperly disinfected soft contact lens rinsed w/ tap water/contaminated lens solution

Answer 18

Acanthamoeba Keratitis