Histoplasmosis Flashcards Preview

med microbiology test 4 > Histoplasmosis > Flashcards

Flashcards in Histoplasmosis Deck (21):
1

What bacteria is associated with Histoplasmosis?

Histoplasma capsulatum

2

Histoplasma capsulatum is associated with what?

with nitrogen rich soil as well as birds and bat droppings

3

What does it mean that Histoplasma capsulatum are dimorphic ascomycetes?

They are fungi that exist in either yeast form or mold form (mycelial form)

4

At what temperature is Histoplasma capsulatum in yeast form?

37 degrees C

5

at what temperature does Histoplasms capsulatum grow in mold form?

20-25 degrees Celsius

6

What are the two varieties of Histoplasmosis?

1) Histoplasma capsulatum variety capsulatum

2) Histo capsulatum variety duboisii

7

Does Histoplsma capsulatum have spores?

yes?

8

spores of Histoplasma capsulatum attack what?

macrophages

9

Symptoms if 95% of the infected are what?

mild

10

Infected macrophages with Histoplasma capsulatum do what?

carry spores through circulatory and lymphatic system

11

Patience may develop _____ with symptoms similar to those of tuberculosis?

chronic pulmonary histoplasmosis

12

patients may develop _____ characterized by ulcers?

chronic cutaneous histoplasmosis

13

Immunocompromized patients may develop systemic histoplasmosis characterized by what?

enlargment of spleen and liver; death may result

14

Ocular histoplamosis may develop. inflammed red eyes indicate what?

type I hypersensitivity to the fungus

15

what is the treatment of histoplasmosis?

-Itraconazole
-ketoconazole
-Amphotericin B.

16

The symptoms of Histomplasmosis are similar to what?

Those of pneumonia

17

infection of histoplasmosis in some people is due to what?

Inhalation

18

Histopplasma capsulatum variation duboisii is what?

lymphadenopathy with lesions on the skin and bones

19

What are the symptoms of Histoplasmosis?

-Dry cough
-shortness in breath
-chest pain
-fever
-chills
-headache

20

How is histoplasmosis transmitted?

airborne spores

21

Where is histoplasmosis prevalent?

Eastern US states along with Ohio River Valley and south America