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Flashcards in An introduction to parasites Deck (14)
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1
Q

3 groups of Parasites

A

Protozoa, arthropods and helminths

2
Q

Protozoa

A

Amoeba, malaria and flagellates
Microscopic
Faecal - oral or by a vector

3
Q

Helminths

A

Roundworm, tapeworm, fluke

4
Q

Arthropod

A

Lice, tick, mite

5
Q

Malaria

A

Plasmodium falciparum species in anopheles mosquito
Sporozites injected then mature in liver
Merozites in blood and lyse RBC
Sexual forms taken up by mosquito

6
Q

Amoebic dysentery

A

Entamoeba histolytica
Trophozite injest RBC and cause bloody diarrhoea with pus
Protozoal cyst in stool and liver abscess

7
Q

Leishamiasis

A

Cutaneous or muco cutaneous
Kala azar - hepato - splenomegalgy
Spread by sand flies

8
Q

Nematode

A

Ascaris lumbricoides - ingested eggs hatch in intestine
Travel to lung and are swallowed again
Can see cysts and ova in stool

9
Q

Cestode

A

Larval cyst in ingested meat

10
Q

Schistomiasis

A

Miracardia live in snail
Cercaria emerge and travel to lung of human
Schistosome cause fever

11
Q

Helminth infection accompanied by

A

Eosinophilia

Elevated IgE

12
Q

Definitive diagnosis by

A

Parasite in tissue or stool and use microscopy

13
Q

Culture for malaria

A

Thick and thin blood films

14
Q

Serology

A

Detect antibodies of parasite in deep tissue