What is Pasteurella Pneumotropica?
Pasteurella pneumotropica is an opportunist Gram negative bacterium responsible for rodent pasteurellosis that affects upper respiratory, reproductive and digestive tracts of mammals.
How do you identify Pasteurella?
The Pasteurella species are spherical, ovoid or rod-shaped cells 0.3-1.0µm in diameter and 1.0-2.0µm in length. Cells are Gram negative, and occur singly, or in pairs or short chains. Bipolar staining may be seen and capsules may be present. All species are non-motile, and are facultatively anaerobic.
What does Pasteurella multocida cause?
Respiratory disease caused by Pasteurella multocida follows a relatively nonspecific course, with cough fever, shortness of breath, and chest pain being common complaints. Pneumonia is the most common type of infection, although tracheobronchitis, empyema, and lung abscesses may also occur.
What type of organism is Pasteurella?
Pasteurella is a genus of Gram-negative, facultatively anaerobic bacteria. Pasteurella species are nonmotile and pleomorphic, and often exhibit bipolar staining (“safety pin” appearance). Most species are catalase- and oxidase-positive.
Can rats get Pasteurella?
Pasteurella pneumotropica is an opportunistic pathogen that is found in many research and commercial rodent colonies. This gram-negative coccobacillus infects a variety of rodents, including mice, rats, kangaroo rats, guinea pigs, hamsters, and gerbils.
What is the gram morphology of Pasteurella?
Pasteurella multocida is a small, gram-negative, nonmotile, non–spore-forming coccobacillus with bipolar staining features. The bacteria typically appear as single bacilli on Gram stain; however, pairs and short chains can also be seen.
What does Pasteurella multocida look like?
Is Pasteurella a bacillus?
The first was Pasteurella pestis (the plague bacillus), which was isolated and described almost simultaneously by Kitasato and by Yersin in 1894. This organism is primarily a pathogen of the rat (one of a select group of acute bacterial pathogens for this host).
Is mycoplasma in rats contagious?
Mycoplasma spp. is highly contagious. Institute medical therapy as soon as possible in rats with respiratory disease. Multi-drug therapy is often used and may include tetracyclines, fluoroquinolones, and sulfa drugs. The primary antibiotic of choice is doxycycline.
Is Pasteurella multocida a gram?
Pasteurella multocida is a facultative anaerobic, fermentative Gram-negative coccobacillus found in the oropharynx of healthy animals, particularly cats, dogs, and pigs, as well as various wild animals.
What shape is Pasteurella multocida?
Pasteurella spp. are very small, nonmotile, nonspore-forming Gram-negative bacteria that are coccoid, oval or rod-shaped. They often exhibit bipolar staining. They are aerobic and facultatively anaerobic.
Which is the new genus for Pasteurella pneumotropica?
The species [Pasteurella] pneumotropica has been reclassified into the new genus Rodentibacter, within the family Pasteurellaceae. Along with the type species (Rodentibacter pneumotropicus) of the new genus, seven new species have been named. These organisms were formerly mainly known as the [P.] pn …
How big is the average size of a Pasteurella?
Pasteurella pneumotropica is a short, gram negative rod or coccobacillus with a size of 0.5 by 1.2 micrometers on average.
Which is the most important species of Pasteurella?
Along with the type species (Rodentibacter pneumotropicus) of the new genus, seven new species have been named. These organisms were formerly mainly known as the [P.] pneumotropica complex and [P.] pneumotropica was considered as the most important Pasteurellaceae species colonizing laboratory rodents.
What are the symptoms of a Pasteurella infection?
Symptoms of a Pasteurella infection vary on which body organ is involved and how long the disease is present. One of the most common symptoms is during respiratory infection and manifests as a nasal discharge. Others include sneezing, congestion, conjunctivitis, and clogged tear ducts.