Question

Trichomonas vaginalis , Entamoeba histolytica , Giardia intestinalis ( lamblia)

a. morphology description b. infective stage c. portal entry d .diagnostic stages e. in host: location/ sample typr f. transmission g vector h disease caused I .symptoms J. geographic distribution

Answer 1

TRICHOMONAS VAGINALIS

a) morphology - pear shaped, flagellate, peripheral nucleus

b) infective stage - trophozoite

c) portal entry - sexual contact

d) diagnostic stage - trophozoite

e) in host location- urogenital, sample is cervical smear.

f) transmission - vaginal intercourse

g) no vector

h) vaginitis

i) vaginal itching, secretions

j) Europe, USA, Africa

ENTAMOEBA HISTOLITYCA

a) pseodopod forming non flagellate, vesicular nucleus with central endosome

b) infective cyst

c) food and water ingestion

d) trophozoite and cyst

e) small intestine

f) feco-oral route

g) no vector

h) amoebic dysentery

i) diarrhea, vomiting, gastroenteritis

j) tropics, and sub tropics, worldwide

GIARDIA LAMBLIA

a) pear shaped with broad anterior end, flagellate

b) cyst form

c) feco oral route to GIT

d) cyst and trophozoite

e) small intestine, duodenum

f) feco oral route

g) no vector

h) giardiasis

i) watery diarrhea, fatigue

j) Russia, Central America