Pasteurellales

Pasteurellales is an order of Gram-negative bacteria. Most members of this order are true pathogens, and can cause various diseases in mammals, including humans. The order includes two families, Pasteurellaceae and Alcaligenaceae, and has been subject to numerous taxonomic changes over the years.

Taxonomy

The order Pasteurellales is part of the class Gammaproteobacteria of the phylum Proteobacteria. It includes two families:

• Pasteurellaceae: This family includes several genera, such as Pasteurella, Haemophilus, and Actinobacillus. Many species in this family are pathogenic in humans and other mammals.

• Alcaligenaceae: This family includes the genera Alcaligenes and Bordetella. Some species in this family are pathogenic, while others are free-living.

Pathogenicity

Many species in the Pasteurellales order are pathogenic, causing diseases in humans and other mammals. For example, Haemophilus influenzae can cause meningitis, pneumonia, and other serious infections. Pasteurella multocida is a common cause of wound infections, particularly in people who have been bitten by a dog or cat.

Treatment

Treatment of infections caused by Pasteurellales bacteria typically involves antibiotics. The choice of antibiotic depends on the specific bacterium involved and its antibiotic resistance profile. In some cases, vaccination may be available to prevent infection.

See also

• List of bacterial orders
• Bacterial taxonomy
• Bacterial pathogenesis

Pasteurellales Resources
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