Is Klebsiella pneumoniae indole positive?

K. pneumoniae is lactose fermenting, H2S- and indole-negative, has a positive Voges-Proskauer (VP) reaction, is capable of growth in KCN and using citrate as a sole carbon source, and is incapable of growth at 10ºC.

Is Klebsiella Variicola indole negative?

pneumoniae complex, K. variicola is positive for urease, ortho-nitrophenyl-β-galactoside (ONPG), the Voges-Proskauer test, and lysine decarboxylase but negative for indole and ornithine decarboxylase. Unlike the rest of the K.

Is Klebsiella an indole?

Klebsiella oxytoca is a Gram-negative, rod-shaped bacterium that is closely related to K. pneumoniae, from which it is distinguished by being indole-positive; it also has slightly different growth characteristics in that it is able to grow on melezitose, but not 3-hydroxybutyrate.

How do you test for Klebsiella pneumoniae?

Klebsiella infections are typically diagnosed with a lab test that examines a sample of the infected tissue, such as blood, urine, or sputum (a mixture of saliva and mucus). Imaging tests, such as ultrasounds, X-rays, and CT scans, may also help your doctor with the diagnosis.

Is Klebsiella pneumoniae Gram positive or negative?

Klebsiella [kleb−see−ell−uh] is a type of Gram-negative bacteria that can cause different types of healthcare-associated infections, including pneumonia, bloodstream infections, wound or surgical site infections, and meningitis.

Is Klebsiella pneumoniae catalase positive or negative?

Klebsiella pneumoniae is a gram negative, non-motile, encapsulated, lactose fermenting, facultative anaerobe, catalase positive, oxidase negative belonging to the Enterobacteriaceae family (Elmer et al., 2006; Hind, et al., 2016). It is the most common causative agent of nosocomial and community acquired infections.

Is Klebsiella pneumoniae urease positive or negative?

Klebsiella spp. are non-motile, ornithine decarboxylase, gelatinase and indole negative. They are capsulate, ferment glucose, lactose and inositol, and are citrate, urease, and Vokes-Proskaüer positive.

How do you identify K. pneumoniae?

Identification of K. pneumoniae from urine and wound swab samples in Khartoum hospitals is based on culture, colony morphology and Gram stain results. Blood and MacConkey agar is used for wound swab cultures, and blood and MacConkey agar or only CLED agar are used for urine samples.

What is the biochemical test for Klebsiella?

(1) Catalase test; (A) Klebsiella sp., (B) E. coli, (C) control, (2) Voges-Proskauer test; (A) Klebsiella sp.

What is unique about Klebsiella pneumoniae?

Drug-resistant Klebsiella CRE, which stands for carbapenem-resistant Enterobacterales, are an order of germs that are difficult to treat because they have high levels of resistance to antibiotics.

Is Klebsiella pneumoniae nitrate positive?