FREE LIVING PATHOGENIC AMOEBA OF MAN

Question 1

are facultative parasites of
man.

Answer 1

Acanthamoeba and naegleria

Question 2

Acanthamoeba inhibatis what in the human body

Answer 2

central nervous system

Question 3

Trophozoite can assume limax form or become
ameboflagellate

Answer 3

NAEGLERIA FOWLERI

Question 4

Has both amoeba and flagellated form

Answer 4

N.fowleri

Question 5

Ameboid: has a blunt pseudopodia and a vesicular
nucleus with a large karyosome and sparse
granules of peripheral chromatin

Answer 5

N.fowleri

Question 6

Only amoeboid trophozoite inside the
host

Answer 6

N.fowleri

Question 7

Flagellated: elongated and bears two equal and
anteriorly located flagella

Answer 7

N.fowleri

Question 8

Elongated with 2 flagella

Answer 8

N.fowleri

Question 9

when inside the host, they do not exhibit the flagellated stage and
cysts are not also formed; only the ameboid form is
present inside the host

Answer 9

Naegleria trophozoites

Question 10

Cyst wall is smooth and double, with the outer wall
perforated by 3 – 8 pores (ostioles)

Answer 10

N.fowleri

Question 11

single nucleus

Answer 11

N.fowleri cyst

Question 12

Spherical chromatoid bodies

Answer 12

N.fowleri cyst

Question 13

N.fowleri can survie in what temp

Answer 13

46 deg cel

Question 14

N.fowleri can survive in what measurement of chlorinated waterPri

Answer 14

0.5 ug/mL

Question 15

N.fowleri is the major causative agent of what disease?

Answer 15

Primary Amebic
Meningoencephalitis (PAM)

Question 16

Causes purulent spinal fluid with motile amoeba

Answer 16

N.fowleri

Question 17

“brain eating amoeba”

Answer 17

N.fowleri

Question 18

portal of enrty of acanthamoeba spp?

Answer 18

broken or ulcerated skin or eye, lungs, genitourinary tract
(GUT)

Question 19

disease of contanct lens wearers

Answer 19

ulcerative Acanthamoeba keratitis

Question 20

Characterized by severe ocular p

Answer 20

ulcerative acanthamoeba keratitis

Question 21

Lesions in the brain
○ Chronic central nervous system infection;
generally, in debilitated or immunocompromised
patients

Answer 21

Granulomatous Amebic Encephalitis (GAE)

Question 22

laboratory diagnosis of acanthamoeba spp

Answer 22

Cerebrospinal fluid
nasal swabs
PYGC medium containing antibiotics