Enterobacterales contains the following families. (There are 7 families total, not all covered)

Pick all generally true for Enterobacterales

ALL members of Enterobacterales grow on MAC agar

Group the exceptions to Enetrobacterale rules by the organisms involved

Pick the Enteric bacteria under Enterobacterales

Major antigens of members of the family Enterobacteriaceae are referred to as H, K (Vi), and O antigens and are divided into serotypes on the basis of combinations of these antigens

Pick the Surface antigens used for Serotyping

All Enterobacterales are non-beta hemolytic except

Group the pathogens by type

Escherichia coli can only be motile, never non-motile

Group the results for E. coli

Which E. coli type produces toxins similar to Shiga toxin of S. dysenteriae?

Link the E. coli type to the virulence factor

MAC-SOR agar will differentiate E. coli O157:H7 (sorbitol negative) from other strains of E. coli. It can be further serotyped using commercially available antisera.

Yersinia spp. are lactose fermenters

Yersinia pestis exhibits a rough, cauliflower appearance on agar

Yersinia enterocolitica produces bull’s-eye colonies on ____ agar

Yersinia enterocolitica is associated with foodborne illness related to undercooked food products and causes enterocolitis characterized by fever, diarrhea and abdominal pain

Salmonella and Shigella are both Indole -ve, non-lactose fermenters, how do they differ?

Heat-labile Vi capsular polysaccharide antigen is unique to S. Typhi

In Salmonella, antisera A through E contain antibodies against somatic (O) antigens

Vi antiserum is prepared against the ____ of Salmonella serotype Typhi

Shigella strains produce flagellins or capsular antigens

Shigella antigenic characterization is based on somatic antigens (O-antigens) by slide agglutination method

E. coli O157:H7 Sorbitol-negative E. coli are serotyped to detect the somatic O antigen 157 and flagellar H antigen ___

All strains of Klebsiella pneumoniae are resistant to ampicillin

Pick all true about Klebsiella spp

_____ Infections are associated with contaminated medical devices and instrumentation

Enterobacter spp. are 

Pick all true about Serratia marcescens

Is Serratia marcescens resistant to ampicillin and first-generation cephalosporins

All species look like E.coli on MAC, but are citrate positive. This is ...

Citrobacter cause UTIs but rarely nosocomial septicemia and meningitis and are transmitted from person to person

C. freundii doesn't produces hydrogen sulfide (H2S)

Citrobacter spp. are not normal microbiota (inhabitants of the intestinal tract)

Proteus spp. swarm on media and often have a “____” smell

Group according to Indole Test results

_____ and _____ are associated with UTIs and their presence promotes stone formation

Enteric bacteria may produce extended-spectrum beta-lactamases (ESBLs) that hydrolyze ______

In ESBLs testing the Clinical and Laboratory Standards Institute (CLSI) guidelines for minimum inhibitory concentration (MIC) and disk diffusion have breakpoints for what organisms?

If an organism is ESBL positive, then the results are reported as _____