Haemophilus

Question 1

small, nonmotile, pleomorphic gram-negative bacilli.

Answer 1

Haemophilus

Question 2

Haemophilus cells are typically

Answer 2

Coccobacillary or short rods

Question 3

Species of the genus Haemophilus are fastidious organisms that require ___ a metabolic intermediate of the hemin biosvnthetic pathway

Answer 3

protoporphyrin IX

Question 4

Protoporphyrin is referred to as

Answer 4

X factor (hemin) and V factor (NAD/NADP)

Question 5

Haemophilus spp. facultative anaerobes with optimal growth at ___ in a ___ CO2-enriched atmosphere.

Answer 5

35°C to 37°C in a 5% to 7% CO2 enriched atmosphere

Question 6

is the sexually transmitted disease caused by h.ducreyi

Answer 6

Chancroid

Question 7

is the sexually transmitted disease caused by H. ducreyi

Answer 7

Chancroid

Question 8

Haemophilus spp. are susceptible to

Answer 8

Drying

Question 9

For recovery of h. ducreyi a _ moistened with _ is used to collect material from the base of ulcer

Answer 9

Cotton swab moistened with phosphate-buffered saline