Lecture 28

1.
What structurally differentiates protazoa from bacteria?
Membrane bound nucleus

Question 1 of 30

2.
What organism is responsible for malaria?
"Plasmodium vivax, Plasmodium falciparum"

Question 2 of 30

3.
What organism is responsible for toxoplasmosis?
Toxoplasma gondii

Question 3 of 30

4.
What organism is responsible for giradiasis?
Giaria lamblia

Question 4 of 30

5.
What organ does giardia infect?
Gut

Question 5 of 30

6.
How is giardia acquired?
Water contamination

Question 6 of 30

7.
How does giardia affect intestinal cells?= =Damage absorptive microvilli structures causing watery diarrhoea

Question 7 of 30

8.
What is the lifecycle of giardia?
Cyst > intestine > excyst > grazing > bifission > cyst > excretion

Question 8 of 30

9.
What is the test for giardia?
PCR

Question 9 of 30

10.
What is the treatment for giardia?
Metionidazole

Question 10 of 30

11.
What is the source of toxoplasma gondii?
"Cat faeces, uncooked infected meat"

Question 11 of 30

12.
How is T. gondii transmitted?
Cat faeces

Question 12 of 30

13.
How does the T. gondii survive?
Oocysts

Question 13 of 30

14.
What is a severe complication of T. gondii
When a pregnant woman passes to a fetus

Question 14 of 30

15.
What can happen to the immune suppressed?
Enlarged cysts especially in the brain

Question 15 of 30

16.
How is tosplasmosis diagnosed?
"Serology, PCR, radiology, ophthlmoscopy"

Question 16 of 30

17.
How to tell if infection is acute or chronic?
"IgM +ve > acute, IgG +ve > chronic"

Question 17 of 30

18.
What is the treatment for immunosuppressed?
Sulphadiazine

Question 18 of 30

19.
Which malarial protazoa is more dangerous?
P. falciparum

Question 19 of 30

20.
How is malaria transmitted?= =Human to human through mosquito bites

Question 20 of 30

21.
What species of mosquito spreads malaria?
Anopheles

Question 21 of 30

22.
How is malaria driven out of a country?
Killing anophelus mosquito

Question 22 of 30

23.
How does anopheles transmit malaria?
Injects infected saliva to coagulate blood

Question 23 of 30

24.
What is the progression of malarial infection?= ="Multiply in liver, formation of merozoites, rupture of liver cells, invasion into RBCs, rupture of RBCs causing fever"

Question 24 of 30

25.

Question 25 of 30

26.
How is malaria diagnosed?
"Microscopy, syndrome, antigen detection"

Question 26 of 30

27.
How does malaria cause problems?
Sludges blood in capillaries in brain and kidneys

Question 27 of 30

28.
Which malarial protazoa can cause repeated infection?
P. vivax (liver hypnozoites)

Question 28 of 30

29.
What is the treatment for P. falciparum?
"Quinine, artemether, doxycycline"

Question 29 of 30

30.
What is the treatment for P. Vivax?
Chloroquine

Question 30 of 30