Day6

Question 1

The media of choice for the growth of Legionella.

Answer 1

Buffered Charcoal Yeast Extract(BCYE)

Question 2

This species is the cause of the sexually transmitted chancroid. Microscopically looks like a school of fish.

Answer 2

H.ducreyi

Question 3

This Vibrio species is found in shellfish and sea water. Causes bacteremia, wound infections, cellulitis

Answer 3

V.vulnificus

Question 4

The species is the causative agent of contagious conjunctivitis called pink eye

Answer 4

H.influenza biotype aegyptius

Question 5

This genus infects amphibians, reptiles, and fish. Straight sided GNB. Ferments glucose. Beta-hemolytic. Oxidase positive

Answer 5

Aeromonas spp.

Question 6

Small GN coccobacilli. Facultative anaerobe. Humans usually obtain infection through an animal bite, scratches or shared food

Answer 6

Pastuerella spp.

Question 7

Small GN coccobacilli in singles or pairs. Colonies are small, shiny, round and mercury silver in color, resembling mercury droplets. Goes well on special media: BORDET GENGOU and REGAN LOWE . Must be incubated for seven days at 35 to 37°C

Answer 7

Bordetella spp.

Question 8

Spiral shaped GNB with simple monopolar flagella. Causes gastric ulcers and carcinoma.

Answer 8

Helicobacter spp.

Question 9

Non fermentive GNB (plump). Oxidase negative.causes opportunistic infections.

Answer 9

Acinetobacter spp.

Question 10

Humans usually are infected w this genus via human bites or fist fights

Answer 10

Eikenella spp.

Question 11

This stage of the whooping cough is the recovery stage

Answer 11

Convalescent

Question 12

The stage of whooping cough resembles a cold; is communicable

Answer 12

Catarrhal

Question 13

This stage of whooping cough is marked by sudden attacks of severe repetitive coughing with a whooping sound

Answer 13

Paroxysmal

Question 14

This Vibrio spp is found in shellfish and sea water. Causes gastroenteritis, would infections, bacteremia

Answer 14

V. parahemolyticus

Question 15

Slender pleomorphic GNB. First recognized after an epidemic of pneumonia in 1976. Disease transmission is associated with surface and potable water. Species in this gene is cause a Legionnaires disease and Pontiac fever. Colonies have a cut glass appearance

Answer 15

Legionella spp.

Question 16

Is the most commonly isolated species of its genus. It is the etiological agent of pandemic Cholera in humans. Produces an enterotoxin that interferes with water and electrolyte exchange within the intestines. Stool specimen‘s appears rice water.

Answer 16

V.cholera

Question 17

Small GN coccobacilli, nonmotile, strict aerobic requiring enriched media. Intracellular parasite of the RES. Causative agent of tularemia or rabbit fever. Extremely hazardous for laboratory workers. It requires Cysteine supplement for growth. Slow-growing. Has the ability to be utilized as a biological weapon.

Answer 17

Franciscella tularensis

Question 18

Non-lactose fermenter. Can survive in a variety of hostile environments and temperatures. Can cause ear/eye infections often referred to as “swimmers ear “. Appear as small GNB that are straight or slightly curved. Motile.

Answer 18

Pseudomonas spp.

Question 19

Small GN coccobacilli, nonmotile, strict aerobe. Intracellular parasite of the RES. Is a very slow grower. Blood cultures expected of this genus should be held for 21 days. Causes Bang’s disease. Extremely dangerous for laboratory workers. Can be utilized as a biological weapon.

Answer 19

Brucella spp.

Question 20

This organism is the most commonly isolated species in its genus. Produces a Pyocyanin blue–green pigment. Has a grape like odor. Produces endotoxins and exotoxins. Has a capsule. Is resistant to many antibiotics. Has the broadest range of infection amongst the pathogenic species in the genus.

Answer 20

Pseudomonas aeruginosa