Weekly Quiz Questions

Question 1

Dimorphic fungi demonstrate yeast and mold at what temperatures?

Answer 1

Yeast - 37 degrees

Mold - 25 degrees

Question 2

The most common means of acquiring a fungal infection

Answer 2

inhalation of spores

Question 3

Aseptate

Answer 3

without cross walls

Question 4

Hyphae

Answer 4

tubular structures comprising mold, form of fungal growth

Question 5

Mycelium

Answer 5

network of hyphae

Question 6

Spore

Answer 6

Reproductive structure

Question 7

Superficial infection

Answer 7

Outermost dead layer of the skin or hair

Question 8

Subcutaneous infection

Answer 8

*** deeper skin layers, including muscle, bone, connective tissue

Question 9

Systemic infection

Answer 9

internal organs or deep tissues of the body

Question 10

Cutaneous infection

Question 11

Polyenes

Answer 11

binds to ergosterol, create ion channels that disrupts the cell membrane

Question 12

Azoles

Answer 12

Inhibits/disrupts cell membrane synthesis

Question 13

Echinocandins

Answer 13

inhibits/disrupts cell wall synthesis

Question 14

Flucytosine

Answer 14

interferes with synthesis of DNA, RNA and proteins

Question 15

Dimorphic fungus

Question 16

Primary vs Opportunistic pathogen

Question 17

Blastomyces dermatitis

Answer 17

large, spherical, thick walled yeast cells 8-15um in diameter, usually with a single bud that is connected to the parent by a broad base

Question 18

Immunocompromise patients, particularly those who have uncontrolled diabetes mellitus and those who are receiving prolonged corticosteroid, antibiotic, or cytotoxic therapy, are at the greatest risk of developing infection with ?

Answer 18

Mucurmycetes

Question 19

Prevention measures for candidemia

Question 20

Host conditions that are associated with an infection incidence of Candida albicans infections include

Answer 20

Diabetes
prolonged antibiotic use
pregnancy

Question 21

ways to distinguish fungal contaminants from fungal pathogens

Answer 21

Virulence

Disease process

Question 22

Fluorescence is key for identification of

Answer 22

microsporum

Question 23

a dimorphic fungus

Answer 23

sporothrix schenckii

Question 24

in the US, the most common organism cause it eumycotic mycetoma

Answer 24

Pseudallescheria boydii

Question 25

Structures invaded by Trichophyton genus

Answer 25

Hair, skin, nails

Question 26

Tinea versicolor is a skin infection caused by

Answer 26

Malassezia furfur

Question 27

``` Hookworm : route of entry infective stage intermediate host clinical syndromes diagnosis prevention ```

Answer 27

``` ROI : skin penetration/cutanteous IS : ? IH : N/A CS: (3) Minor - fatigue, headaches, Major - fatigue, iron deficiency, loss of appetite, Extreme - anemia, death D : P : sanitation, adequate footwear ```

Question 28

Are Nematodes hermaphroditic?

Answer 28

No

Question 29

What is the relationship of obligate parasites and their host?

Answer 29

Obligate parasites can only survive in a host

Question 30

the definitive host harbors

Answer 30

the adult stage of a parasite

Question 31

Types of protozoans

Answer 31

amoebae and flagellate

Question 32

Proglottids

Answer 32

segments of the body found in cestodes

Question 33

Amebic cyst

Answer 33

the non-feeding, nonmotile stage that is infectious to humans

Question 34

ways to prevent parasitic infections

Answer 34

anti parasitic drugs, diet change , supplement vitamins, replace fluids, blood transfusion, bed rest

Question 35

Types of nematodes

Answer 35

hookworms, trichuris

Question 36

Parasites acquired by cutaneous penetration

Answer 36

hookworm, strongyloides

Question 37

Pneumonia-like syndrome may be found in humans exposed to (parasites)

Answer 37

Ascaris, hookworm, strongyloides

Question 38

Fish is an intermediate host for

Answer 38

Dibothriocephalus

Question 39

In the life cycle of hermaphroditic flukes, the infective stage for the snail is

Answer 39

Miracidium

Question 40

2 protozoan organisms most commonly associated with waterborne outbreaks of diarrhea is the US

Answer 40

Cryptosporidium spp, Giardia lamblia

Question 41

Protozoan causing diarrhea that has been associated with raspberries, herbs and some vegetables

Answer 41

cyclosporine cayetanesis

Question 42

Small threadlike worm is observed under the conjunctiva of the eye (parasite and life stage)

Answer 42

Loa loa, adult

Question 43

What type of periodicity is exhibited if microfilariae appear in the blood of an individual at 2pm each day

Answer 43

dinural

Question 44

the infective stage of Schistosoma mansoni

Answer 44

cercaria swimming in water

Question 45

Vector for Leishmania

Answer 45

sandfly

Question 46

Diagnostic stage of T.b rhodesiense

Answer 46

Tryptomastigote

Question 47

The ameboid trophozoites of Naeglaeria fowleri enter the human body via

Answer 47

nasal mucosa inhalation of contaminated dust sniffing contaminated water

Question 48

Causitive agent of African sleeping sickness

Answer 48

Trypansoma brucei gambiense, T.b. rhodesiense

Question 49

why do we not see domestic cases of Chaga's disease if the vector is located here?

Answer 49

**

Question 50

Best temperature for storage of viral specimens on a short-term basis

Answer 50

4 or 37 degrees

Question 51

viral structure consisting of nucleic acid surrounded by a protein coat is called

Answer 51

Envelope or Nucleocapsid