Flashcards in Bacteria Deck (28)
In seriological typing, what is meant by “type O antigens”?
Cell wall antigens
In serological typing, what is meant by “H antigens”?
In serological typing, what is meant by “type P antigens”?
In serological typing, what is meant by “k antigens?”
With regards to serological typing, in E. Coli O157:H7, where are the antigens located?
Cell wall antigen 157
Flagella antigen 7
Which genus of bacteria have the following characteristics:
Acid fast positive
Gram positive, bacilli, thin, straight, tend to clump
Multilayered cell wall
Complex waxes and long chained fatty acids (70-80 carbons)
Selective media is required
Slow growing (6-9 weeks)
What are the two selective media required for growing genus mycobacterium?
Lowenstein Jensen agar
What type of stain and shape is mycobacterium tuberculosis?
Acid fast +
Which bacteria is tested by the Tine test and the Mantoux tests?
What is the primary lesion of myobacterium tuberculosis called?
What is the vaccine bacteria for myobacterium tuberculosis?
What does the BCG Vaccine protect against in humans?
How is myobacterium tuberculosis spread?
Pulmonary - through aero soles
Which bacterium has a classic presentation of “cording factor” looping of cell wall lipids?
Which bacteria leaves behind a “Gohn Complex”?
Circular lesions on x ray that look like cheese due to their central caseating necrosis surrounded by macrophages trying their best to phagocytize the bacteria.
Why can’t the macrophages take care of myobacterium tuberculosis?
The organism is phygocytized but there is no lysosomal fusion
A positive PPD test for tuberculosis causes what type of Hypersensititvity reaction?
Type IV HSR - Delayed
Why does the US not typically give the BCG Vaccine?
Because it show up positive on a PPD skin test if a pt. Has been vaccinated before
What shape and gram test results would you find with Mycobacterium Bovis?
Acid Fast +
Which bacteria is similar to myobacterium tuberculosis but in cows?
Which bacteria has the following characteristics: spread through unpasteurized milk or imported cheeses, especially from Mexico and central and South America, is gram +, bacilli shaped, and acid fast +?
Causative agent of Hansen’s disease
Which bacteria does not grow in artificial medium and uses armadillos and rats as a reservoir?
What are the two forms of mycobacterium leprae?
Lepramatous and tuberculoid
Which bacteria has the following characteristics: damage to extremities (cooler areas), causes nerve damage and bone reabsorption during infection, is treated with sulfa drugs, there is no vaccine because the virulence factor is poorly understood but we do know the disease is not spread via the lesions.
Which group of bacterium have no protection from spores, oxygen will kill them, are found deep within the body develop endogenous diseases from normal flora getting out of normal area, highly pleomorphic, diseases are poly micro in, cause abscesses, Prereduced anerobically sterile PRAS media required, gram variable, have Gas Liquid Chromatography (GLC) lipid profiles and are IDed by fatty acid profiles?