Characteristics Of Pasteurella Multocida

1978 Words 8 Pages
Register to read the introduction… Animal infection includes conditions such as avian cholera, atrophic rhinitis, and septicemia. Avian cholera is an infection in which all birds are susceptible to and can die in hours or days after exposure to Pasteurella multocida. The birds experience symptoms of pneumonia, fever, exudate from the nostrils, and swelling of wattles and combs. (1,2) Atrophic rhinitis is another disease that is caused by Pasteurella multocida that causes bone destruction and facial distortion in pigs and rabbits. Pasteurella multocida can also cause septicemia where animals develop a fever, prostration and death from septic shock. (3)
Humans that become infected with Pasteurella multocida from a dog or cat bite usually experience a local infection (3). A patients’ wound will start to become erythematic, swollen, and warm and release purulent discharge within 25 hours of the initial bite. (1,3) If a patient acquired Pasteurella multocida through inhalation of the bacteria the bacteria can colonize the upper respiratory tract resulting in pneumonia with breathing complication, cough, and fever
…show more content…
(1,4) To identify Pasteurella multocida the lab visualises the bacterium by staining the microorganism with gram stain. Pasteurella multocida are visualised as small gram-negative-coccobacilli once stained and viewed under light microscopy. (2-5) Pasteurella multocida will grow both aerobically and anaerobically at 37ºC and room temperature on Sheep Blood Agar, Chocolate Agar, and CDC Anaerobic Sheep Blood Agar as small, grey, nonhemolytic colonies. (1,2) Pasteurella multocida will not grow on MacConkey Agar. (1) Biochemical tests can be conducted to identify Pasteurella multocida such as catalase, indole, nitrate reduction, H2S, and oxidase where Pasteurella multocida is positive. (1) Pasteruella multocida is urea negative and does not ferment lactose, maltose, salicin, adonitol. (1) Due to technological advances in many labs these test are only utilised only in rare complicated situations instead many labs utilize a machine called Viteck. (1) The Vitek uses Mass Spectrometry (MS) and Matrix Assisted Laser Desorption Ionisation Time of Flight (MALDI-TOF) to create charged molecules from the bacterias’ protein. These charged molecules are then separated based on mass to charge ratio and is detected and then compared to a data

Related Documents