LISTERIA

Pathogenic speciesListeria this: L. monocytogenes L. grayi. L. monocytogenes L. inocua. L. monocytogenes L. ivanovia. L. monocytogenes L. seligeeri.

When L. monocytogenes recognized as a food-borne pathogen?: in the 50s. in the 80s. in the 60s. in the 70s.

L. monocytogens this: G+ spore-forming catalase + immobile at 20-25 degrees. G+ non-spore forming catalase + mobile at 20-25 degrees. G+ rod forming spores catalase - mobile in 20-25 degrees. G+ non-spore forming catalase - immobile at 20-25 degrees.

Serotype Listeria is determined on the basis of: genes encoding internaline A and B. the gene encoding the P60 protein. gene encoding listeriolysin O. somatic O antigen and ciliary H antigen.

Listeria monocytogenes is dangerous for pregnant women because: disrupts the hormonal balance. is able to cross the placenta. damages the central nervous system. produces toxins.

Listeria monocytogenes for the intracellular life cycle uses: Internaline A and B, listeriolysin O, phospholipases A and B, ActA protein. Internaline A, listeriolysin O, Esp protein, cydB. Internaline A and B, listeriolysin O, phospholipases A and B, Esp protein. Internaline A and B, listeriolysin O, cydB, ActA protein.

To determine presenceListeria monocytogenes in food samples, the initial multiplication is carried out in: LB broth. Fraser broth. half Fraser broth. BHI broth.

Differentiation of sticks from genusListeria takes place on the following substrates: ALOA, Oxford Agar, MacConkey Agar. ALOA, Oxford Agar, Palcam Agar. ALOA, MH Agar, Palcam Agar ,. ALOA, MH Agar, MacConkey Agar.

Listeria monocytogenes: does not ferment xylose does not ferment rhamnose. ferments xylose ferments rhamnose. ferments xylose does not ferment rhamnose. does not ferment xylose ferments rhamnose.

Alternative methods of determinationListeria monocytogenes are in the food: chromogenic media. immunoenzymatic methods. all answers correct. methods using DNA.

Tests confirming belonging to Listeria spp. are: gram staining, presence of coagulase, motion detection. gram stain, presence of coagulase, indole detection. gram staining, catalase presence, indole detection. gram staining, presence of catalase, motion detection.

In the CAMP testListeria monocytogenes shows: strengthening of the hemolysis zone to S.aureus none to R.equi. reinforcement of the hemolysis zone to S. aureus and R. equi. no enhancement of hemolysis zone to S.aureus enhancement to R.equi. no enhancement of the hemolysis zone to S. aureus and R. equi.

L. monocytogenes can cause: miscarriages. meningitis. muscle pains. all listed.