Suppurative meningoencephalitis and perineuritis caused by Streptococcus gallolyticus in a Japanese Black calf

Autor:	Kaho Shimada, Ayaka Kamikawa, Tomoyuki Shibahara, Mizuki Nakayama, Daisuke Takamatsu, Mikuya Iwanaga, Masatoshi Okura, Naoto Imai, Daijiro Ueda
Rok vydání:	2022
Předmět:	General Veterinary Meningoencephalitis Amoxicillin Biology medicine.disease Microbiology Mastitis Penicillin Pneumonia Ampicillin medicine Multilocus sequence typing Streptococcus gallolyticus medicine.drug
Zdroj:	Journal of Veterinary Medical Science. 84:53-58
ISSN:	1347-7439 0916-7250
DOI:	10.1292/jvms.21-0518
Popis:	A 179-day-old calf, which was weak and stunted, showed neurological signs and was euthanized. Postmortem examination revealed extensive and severe cloudy area in the meninges, and pleural pneumonia. Gram-positive cocci were isolated from systemic organs. Biochemical and 16S rRNA gene sequence analyses identified the isolate as Streptococcus gallolyticus, and its subspecies was suggested to be gallolyticus (SGG). The isolate was classified as a novel sequence type (ST115) by the multilocus sequence typing scheme for SGG and showed susceptibility to penicillin, ampicillin, amoxicillin, florfenicol, sulfamethoxazole-trimethoprim, and chloramphenicol. Histopathologically, suppurative meningoencephalitis and perineuritis were detected. As SGG has been isolated solely from a cow with mastitis in Japan, this is the first SGG infection in a calf with suppurative meningoencephalitis and perineuritis in this country.
Databáze:	OpenAIRE
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