Flashcards in Lec 07 Microbiology of Selected Bacteria and Viruses Deck (20)
MacConkey agar is a selective media because it targets only G+ and recovers G- bacteria thru the presence of:
The somatic antigen in cell wall LPS
Most common presentation of Enterobacteriaciae infection
process by which DNA is transferred from one bacterium to another by a virus
Appearance of Salmonella in Hektoen culture media
Green/blue colonies with black centers
4F's of Food Safety
Probably the world’s most widespread zoonosis.
Temperature and PH for optimal growth of Leptospira
Temp: 28-32C, PH 7.2-7.6
True of leptospires:
a. Uses long chain fatty acids as source of energy
b. Organic matter for nitrogen source
They can process amino acids or carbohydrates as nitrogen source. Just ammonium salts. So b is false.
Incubation period for Leptospira
most common clinical manifestations of leptospirosis
jaundice and conjunctival suffusion
True of laboratory diagnosis of leptospirosis:
a. urine specimen on the 3rd weeks inoculated unto
b. IgM detected at the end of 1st week
Urine specimen gathered at 2-6 weeks sa semisolid medium + neomycin sulfate
Yung IgM at end of first week, parang sa typhoid yun.
substance injected to animal to create resistance to the disease
A result of 2+ for Leptodipstick assay indicates:
that there is evidence of recent leptospirosis.
1+ = assay should be taken at a later time/ re-examination to look for an increased amount of antibodies.
Viruses transmitted by blood-sucking athropods from one
host to another during the viremic stage.
Arbovirus (ARthropod-BOrne) viruses
True of Arthropod borne viruses:
A. Blood sucking arthropods are the vectors particularly
B. The vectors are infected throughout their lives without
signs of damage
Mosquitoes can be vectors.
Swahili for “Break-bone fever”
3 protein molecules that form the Flaviviridae virus particle:
C, prM, E