Which of the following tests can be Catalase performed to differentiate the two subspecies of Neisseria—elongata and glycolytica? With one exception, species of the genus Hemin and nicotine adenine Haemophilus require which of the following dinucleotide (NAD) media ingredients for in vitro growth? Among H. influenzae strains, group capsular characteristics designations (e.g., type b) are based on: Chancroid is the sexually transmitted H. ducreyi disease caused by: Which of the following media provides the Chocolate agar factors necessary for the growth of Haemophilus spp.? In a phenomenon known as satelliting, Staphylococcus aureus tiny colonies of spp. may be Haemophilus observed growing on sheep blood agar close to colonies of: In a phenomenon as satelliting, tiny NAD colonies of Haemophilus spp. may be observed growing on sheep blood agar close to colonies of bacteria that can produce: Haemophilus ducreyi requires what chocolate agar, special to grow? supplemented with 1% IsoVitaleX and vancomycin The sputum of a 75-year-old man with H. influenzae chronic lung infections yields the following: Many gram-negative coccobacilli in Gram X and V factors required for growth; Nonhemolytic on rabbit agar. The organism can be identified as: Growth of most Haemophilus species in 5% to 10% carbon dioxide (CO2) culture is enhanced by: Performance of the requirement inoculation of unsupplemented “factor test” for Haemophilus involves the: media with a light suspension of the organism and placement of X and V factor disks on the agar surface Isolates from cerebrospinal fluid (CSF) or H. influenzae respiratory tract specimens that are coccobacilli, grow on chocolate agar in CO2 but not on blood agar, and are porphyrin-negative and nonhemolytic on rabbit or horse blood may be identified as: H. influenzae can be distinguished from H. positive; xylose fermentation aegyptius by its _____ test for
Which of the following tests can be performed to differentiate the two subspecies of Neisseria—elongata and glycolytica? Catalase With one exception, species of the genus Haemophilus require which of the following media ingredients for in vitro growth? Hemin and nicotine adenine dinucleotide (NAD) Among H. influenzae strains, group designations (e.g., type b) are based on: capsular characteristics Chancroid is the sexually transmitted disease caused by: H. ducreyi Which of the following media provides the factors necessary for the growth of Haemophilus spp.? Chocolate agar In a phenomenon known as satelliting, tiny colonies of Haemophilus spp. may be observed growing on sheep blood agar close to colonies of: Staphylococcus aureus In a phenomenon as satelliting, tiny colonies of Haemophilus spp. may be observed growing on sheep blood agar close to colonies of bacteria that can produce: NAD Haemophilus ducreyi requires what special to grow? chocolate agar, supplemented with 1% IsoVitaleX and vancomycin The sputum of a 75-year-old man with chronic lung infections yields the following: Many gram-negative coccobacilli in Gram X and V factors required for growth; Nonhemolytic on rabbit agar. The organism can be identified as: H. influenzae Growth of most Haemophilus species in culture is enhanced by: 5% to 10% carbon dioxide (CO2) Performance of the “factor requirement test” for Haemophilus involves the: inoculation of unsupplemented media with a light suspension of the organism and placement of X and V factor disks on the agar surface Isolates from cerebrospinal fluid (CSF) or respiratory tract specimens that are coccobacilli, grow on chocolate agar in CO2 but not on blood agar, and are porphyrin-negative and nonhemolytic on rabbit or horse blood may be identified as: H. influenzae H. influenzae can be distinguished from H. aegyptius by its _____ test for positive; xylose fermentation