YEAST Flashcards
C.neofromans and staining and the differnet species
gram + capsule-polysaccharide urease positve 4 serotypes abcd related to AIDS - meningoencephalitis found in the soil and associated with bird droppings
india ink stain: the ink is not taken up by the bacteria, so appears as
c.gatii (associated with exposure to specific tree species)
main antibiotics for fungal infections
The classic antifungal antibiotic is amphotericin B.
Most species of fungi are susceptible to it, and although
it has many side effects, it remains the drug of choice for
most serious systemic fungal infections:
which fungi are yeasts and moulds
yeast: candida and cryptococcis
moulds: aspergillus
aspergillus
disease: ASPERGILLOSIS
mould and branched hyphae
has condidiospores (fruiting body) which is the stalk that hold the condidia -spores (infectious form)
aspergilloma - fungus balls in the lung cavities
ABPA (allergic bronchopulmonary aspergillus
aflatoxin- A.flavus, associated with grains
Actinomyces
israelii
gram +
ANAEROBE (specific for israeli, but the genus is faculative anaerobe)
endogenous- we infect ourselves
chronic granulomatous infection leads to suppuration and abscess
4 kinds
- cervicofacial
- thoracic
3.
TREATMENT: pencillin
mycoplasma
M.hominis, M.genitalium, M.pneumonia U.urealyticum- assoacited with NON g Urethritis, pyelonephritis, PID,
no cell wall- cant use beta lactmas like cephalosporins
sterols in cell membrane
no staining
fastidious -PPLO AGAR -beef heart
diagnosis: cold agglutinins (not specific)
treatment: macrolides (eryhtromycin) and tetracylcins
m.penumonia
extracellular pathogen - due to 02 requirments
atypical pneumonia
aspergillus
very angioinvasive
A.flavus- aflatoxin - liver damage and cancer
A.fumigatus
A.niger -black pigment
symptoms;
Aspergilloma
ABPA- ig e mediated
3 main manifestations from disease
- ABPA-IGE
- angioinvasive aspergillus - people with leukemia - neutriopenia
