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Flashcards in Protozoa Deck (10)
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1
Q

Process of mosquito infection

A

1 - sporozoites injected by mosquito bite
2 - sporozoites invade hepatocytes
3 - merozoites released and invade RBCs
4 - mature schizont produced
5 - gametocyte produced
6 - diff mosquito bites and is infected, oocyst develops in stomach wall
7 - sporozoites develop in oocyst
8 - oocyst rupture = sporozites migrate to salivary gland of mosquito and cycle restarts

(Plasmodium species exhibit three life-cycle stages—gametocytes, sporozoites, and merozoites. Gametocytes within a mosquito develop into sporozoites. The sporozoites are transmitted via the saliva of a feeding mosquito to the human bloodstream. From there they enter liver parenchyma cells, where they divide and form merozoites. The merozoites are released into the bloodstream and cells of humans)

2
Q

common amoeba

A

entamoeba histolytica

3
Q

what does entamoeba histolytic cause, route of transmission?

A

amoebic dysentery, faeco-oral

4
Q

treatment entamoeba histolytica

A

metrondiazole

5
Q

what type of protozoa is malaria?

A

coccidia

6
Q

common flagellates (protozoa)?

A

giardia
trichomona vaginalis
trypanosoma brucei
trypanosoma cruzi

7
Q

what does giardia cause and what is the rx?

A

causes GI infection = diarrhoea

rx = metrondizole

8
Q

what does trichomona vaginalis cause and what is the rx?

A

causes vaginal dischange (green and smelly)

rx = metrodiazole

9
Q

what does trypanosoma brucei cause?

A

causes african sleeping sickness

10
Q

what does trypanosoma cruzi cause and what is the rx?

A

causes chugs disease

rx = benzidole