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Unformatted text preview: Electron Microsope Causative agent: Salmonella enteritidis (enterica) Category: Bacteria Kingdom: Bacteria Phyllum: Proteobacteria Class: Gamma Proteobacteria Order: Enterobacteriales Family: Enterobacteriaceae Genus: Salmonella Species: enteritidis All species are potentially pathogenic. Common inhabitants of intestinal tracts of many animals. Can contaminate food under unsanitary conditions. The nomenclature of the genus is unusual in that instead of multiple species, members of the genus that are infectious to warm-blooded animals can be considered for practical purposes to be a single species, Salmonella enterica. A serovar is not a species and should be more properly written as Salmonella enterica enteritidis. Disease: Salmonella bacteria enter host cells by causing the host's cytoskeleton to borm a basket around the bacterial cells. Can be transferred from animals to humans in meat or milk. The use of antibiotics in animal feed preferentially allows the growth of strains of bacteria that are resistant to drugs commonly used to treat human infections. Pet reptiles are also a source of Salmonella infection. Their bacteria that are resistant to drugs commonly used to treat human infections....
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