Is Proteus vulgaris catalase positive or negative?
Proteus vulgaris is a rod-shaped, nitrate-reducing, indole-positive and catalase-positive, hydrogen sulfide-producing, Gram-negative bacterium that inhabits the intestinal tracts of humans and animals.
On which biochemical Your can differentiate between Proteus mirabilis and Proteus vulgaris?
Specific tests include positive urease (which is the fundamental test to differentiate Proteus from Salmonella) and phenylalanine deaminase tests. On the species level, indole is considered reliable, as it is positive for P. vulgaris, but negative for P. mirabilis.
Does Proteus vulgaris produce urease?
There are several species of Proteus, but Proteus mirabilis and Proteus vulgaris account for the vast majority of clinical Proteus isolates. Both produce urease, and the latter is indole positive. Members of this genus also produce hydrogen sulfide.
Is Proteus vulgaris methyl red positive or negative?
P. vulgaris also tests positive for the methyl red (mixed acid fermentation) test and is also an extremely motile organism.
What is the treatment for Proteus vulgaris?
For hospitalized patients, therapy consists of parenteral (or oral once the oral route is available) ceftriaxone, quinolone, gentamicin (plus ampicillin), or aztreonam until defervescence. Then, an oral quinolone, cephalosporin, or TMP/SMZ for 14 days may be added to complete treatment.
What diseases does Proteus vulgaris cause?
P. vulgaris, previously considered biogroup 2, has been reported to cause UTIs, wound infections, burn infections, bloodstream infections, and respiratory tract infections (71, 137).
What antibiotics treat Proteus mirabilis?
The most appropriate treatment for P. mirabilis may be aminoglycosides, carbapenems (except imipenem), and 3rd generation cephalosporins. Recent P. mirabilis isolates were also mostly susceptible to augmentin, ampicillin-sulbactam, and piperacillin/tazobactam.
What is the Biocode ID for Proteus vulgaris?
The Phenylalanine test was positive as was the Harnstoff Urea test. Proteus vulgaris can test positive or negative for Citrate. All combine for a “Biocode ID of 31407” for use in the Interpretation Guide/Computer Coding and Identification System (CCIS).
Which is hydrolase positive or negative Proteus vulgaris?
Proteus vulgaris is variable, it maybe positive or negative. Results: 11-15-14 Gram – is hydrolase positive, gram + is hydrolase negative. IMViC series of tests distinguish between different enteric bacteria. Enterobacter aerogenes is a facultatively anaerobic gram negative rod that has peitrichous flagella. It is a motile lactose fermenter.
What are the expected results of TSI agar test?
Expected results of TSI Agar test are: 1 Alkaline slant/no change in butt (K/NC) i.e Red/Red = glucose, lactose and sucrose non-fermenter 2 Alkaline slant/Alkaline butt (K/K) i.e Red/Red = glucose, lactose and sucrose non-fermenter 3 Alkaline slant/acidic butt (K/A); Red/Yellow = glucose fermentation only, gas (+ or -), H 2S (+ or -)
How to test for triple sugar iron ( TSI )?
Procedure for Triple Sugar Iron Agar (TSI) Test With a sterilized straight inoculation needle touch the top of a well-isolated colony Inoculate TSI agar by first stabbing through the center of the medium to the bottom of the tube and then streaking on the surface of the agar slant.