Shape and Size

coccobacillus shaped

Genome Information

Yersinia pseudotuberculosis IP 31758, circular DNA, RefSeq NC_009708.1, Size 4.72 Mb, GC% 47.5, Protein 3,995, rRNA 22, tRNA 82, Other RNA 26, Gene 4,230, Pseudogene 97 https://www.ncbi.nlm.nih.gov/genome/510?genome_assembly_id=167327

Food Source

Pathological Factor

The organism possesses high virulence due to the secretion of the superantigenic exotocin YPM. YPM preferably stimulates the proliferation of CD4 T cells but some expression of CD8 does occur. Along with proliferation, YPM stimulates the overproduction of interleukin-8, increasing the inflammatory response in the host.

Disease

Gastroenteritis, mesenteric lymphadenitis

Symptoms

abdominal pain and fever, complications in the kidneys, gastrointestinal tract, and severe skin rashes, arthritis

Affected Body Organs

intestinal tract, liver, spleen, and lymph nodes and causes these tissues to become inflammed. Typical symptoms of a Y. pseudotuberculosis infection include joint or back pain, abdominal cramps, and diarrhea. The O:3 strain of Y. pseudotuberculosis can cause reactive arthritis.