title: Acute septicemia caused by Streptococcus gallolyticus subsp. pasteurianus in turkey poults.
abstract: Streptococcus gallolyticus, previously known as Streptococcus bovis biotypes I and II/2, is a well-known cause of sepsis and meningitis in humans and birds. The present case report describes an outbreak of fatal septicemia associated with S. gallolyticus subsp. pasteurianus (S. bovis biotype II/2) in 11 turkey flocks in Pennsylvania between 2010 and 2013. Affected poults were 2-3 wk of age. Major clinical observation was sudden increase in mortality among turkey poults without any premonitory clinical signs. Postmortem examination findings revealed acute septicemia with lesions such as fibrinous pericarditis, meningitis, splenic multifocal fibrinoid necrosis, hepatitis, osteochondritis, myositis, and airsacculitis. Gram-positive cocci were isolated from several organs by routine bacterial culture. Biotyping identified bacteria as streptococci, whereas 16S ribosomal RNA gene sequencing identified them as S. gallolyticus subsp. pasteurianus. Antibiotic susceptibility profiles revealed that all the strains isolated were sensitive to penicillin and erythromycin with different sensitivity profiles for other antibacterial agents tested. The present study reports the first confirmed case of acute septicemia in turkey poults caused by S. gallolyticus subsp. pasteurianus.
authors: Dona
authors: D
authors: Saumya
authors: S
authors: S
authors: Wijetunge
authors: Patricia
authors: P
authors: Dunn
authors: Eva
authors: E
authors: Wallner-Pendleton
authors: Valerie
authors: V
authors: Lintner
authors: Tammy
authors: T
authors: Matthews
authors: Traci
authors: T
authors: Pierre
authors: Subhashinie
authors: S
authors: Kariyawasam
mesh_terms: D000818:Animals; D004269:DNA, Bacterial / Q000235:genetics / Q000378:metabolism; D017809:Fatal Outcome; D008826:Microbial Sensitivity Tests / Q000662:veterinary; D008969:Molecular Sequence Data; D010414:Pennsylvania; D011201:Poultry Diseases / Q000382:microbiology / Q000473:pathology*; D012336:RNA, Ribosomal, 16S / Q000235:genetics / Q000378:metabolism; D018805:Sepsis / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D017422:Sequence Analysis, DNA / Q000662:veterinary; D013290:Streptococcal Infections / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D013291:Streptococcus / Q000145:classification / Q000187:drug effects / Q000235:genetics* / Q000302:isolation & purification*; D014422:Turkeys
chemical_list: D004269:DNA, Bacterial; D012336:RNA, Ribosomal, 16S