Parasites/Fungal infections/Prions/Zoonoses

Question 1

Most common age group for threadworm infection?

Answer 1

School children 5-9yrs

Question 2

How long can threadworm eggs survive for at room temperature?

Answer 2

2-3wks

Question 3

Treatment of symptomatic Giardia infection is with what?

Answer 3

Metronidazole

Question 4

Which tapeworm causes hydatid disease?

Answer 4

Echinococcus granulosus (dog tapeworm)
Occurs in regions with close contact between sheep (act as intermediatory), dogs and humans

Question 5

Pneumocystis jiriveci causes infection with which type of immunodeficiency?

Answer 5

PCP is an infection of T Cell immunodeficiency (AIDS/SCID)

Question 6

How do you diagnose Pneumocystis jiriveci?

Answer 6

Broncho-alveolar lavage or biopsy then

Silver stain or Giemsa staining

Question 7

Treatment for PCP?

Answer 7

High dose Co-trimoxazole + Steroids

Question 8

Where do the following Ringworm infections affect?
Tinia corporis
Tinea cruris
Tinea pedis
Tinea capidis

Answer 8

Tinia corporis = body (Rx topcial azole)
Tinia cruris = groin (Rx topical azole)
Tinia pedis = feet (Rx topical azole)
Tinia capidis = scalp (Rx PO Griseofulvin or terbinafine +/- ketaconazole shampoo)

Question 9

How are prion infections caused?

Answer 9

Corrupted versions of naturally occurring proteins (which are self replicating)

Question 10

What diseases do Prion infections cause?

Answer 10

Spongiform encephalopathies
CJD
Fatal familial insomnia

Question 11

How is cryptococcal infection transmitted?

Answer 11

Bird droppings + contaminated soil