Immunology and Serology: Parasitic and Fungal Infections

Question 1

causative agent of Toxoplasmosis

Answer 1

Toxoplasma gondii, protozoa

Question 2

intermediate avidity value in ELISA for IgG avidity

Answer 2

0.20-0.25

Question 3

IgG with __ avidity indicates more recent infection.

Answer 3

low

Question 4

More sensitive than detection of IgM antibodies

Answer 4

Detection of anti toxoplasma IgA

Question 5

infection or disease caused by fungus is called _____.

Answer 5

mycosis

Question 6

duration of fungal growth

Answer 6

2-4 wks

Question 7

mushroom poisoning

ex. amanita phalloides, A. verna, A. virosa

Answer 7

Mycetismus

Question 8

mycotic infection where it produces itchiness and cracking of skin

Answer 8

cutaenous

Question 9

causative agent of subcutaneous fungal infections

Answer 9

saprophytes

Question 10

these infections originate in the lungs and disseminate to other locations

Answer 10

systemic

Question 11

fungi that are commensal in nature

Answer 11

candida albicans
malassezia furfur

Question 12

main component of fungal cell wall

Answer 12

chitins

Question 13

CLR that recognizes beta-glucans

Answer 13

dectin 1

Question 14

recognizes high mannose structures common to fungi

Answer 14

dectin2

Question 15

may occur in in neutropenic ptx bcs of immunosuppression

Answer 15

Invaive Pulmonary Aspergillosis (IPA)

Question 16

aspergillus infection affecting external auditory canal

Answer 16

Aspergillus otomycosis

Question 17

Diagnostic procedure which has increased the ability to diagnose invasive aspergillosis

Answer 17

detection of galactomannan in serum

Question 18

clearing agent used in direct examination for candida spp. to clearly see hyphae and remove other artifacts

Answer 18

10% KOH

Question 19

causes pneumonia and septicemia in neutropenic patients

Answer 19

Candida esophagitis

Question 20

This fungi is saprobe in nature and lives in trees and rotting woods, isolated from pigeons

Answer 20

Candida neoformans

Question 21

major virulence of C. neoformans

Answer 21

capsule

Question 22

portal of entry of c. neoformans

Answer 22

Respiratory tract

Question 23

in direct examination of C. neoformans, what is its characteristic with India ink.

Answer 23

halo around yeast cell

Question 24

rapid and reliable sero method for cryptococcosis

Answer 24

LA

Question 25

Histoplasmosis is acquired through inhalataion of

Answer 25

mycelial fragments and microconidia

Question 26

A titer of ___ in Complement Fixation and Precipitation diagnostic procedure indicates histoplasmosis.

Answer 26

1:32

Question 27

glycoproteins released by mycelial and yeast-phase cultures in H. capsulatum.

Answer 27

H and M glycoproteins/antigens

Question 28

presence of H in Precipitin band testing for H. capsulatum indicates

Answer 28

active infection

Question 29

vector for Coccidiosis immitis.

Answer 29

pigeon

Question 30

Coccidiosis immitis infection is through inhalation of

Answer 30

arthroconidia spores