Genotypic and Phenotypic Features of Eye-Origin Streptococcus canis Isolates from Dogs in 2021: Relatedness with Clonal Complex 46 and Antimicrobial Resistance.

The eye (including the cornea) and ear canal are the major sources of Streptococcus canis in companion animal practice. In this study, we aimed to clarify the genotypic and phenotypic features of eye-origin isolates collected in 2021 compared to ear-origin isolates collected in 2021 and eye-origin isolates collected in 2017. Of the 102 isolates in 2021, 9 eye-origin isolates were enrolled.

Draft Genome Sequence of Blood-Origin Pasteurella canis Strain PA42, Isolated from a Dog in Japan.

We report the draft genome sequence of Pasteurella canis strain PA42, which was isolated from the blood of a diseased dog in Japan in 2021. The 2.151-Mbp genome has a G+C content of 36.

Reduced rates of antimicrobial resistance in Staphylococcus intermedius group and Escherichia coli isolated from diseased companion animals in an animal hospital after restriction of antimicrobial use.

The 2016 National Action Plan aims for reduction in antimicrobial resistance (AMR) to tetracyclines, third-generation cephalosporins, and fluoroquinolones in Escherichia coli isolates from livestock: to lower the tetracycline resistance of E. coli to 33% or less; to maintain the third-generation cephalosporin resistance of E. coli at the same level as in the other G7 countries as of 2020; and to maintain the fluoroquinolone resistance of E.

Bacteria isolated from companion animals in Japan (2014-2016) by blood culture.

We aimed to identify microorganisms isolated by blood culture (BC) from companion animals and to determine antimicrobial resistance of these isolates during 2014-2016 at veterinary laboratory, in comparison with those during 2010-2013, in Japan. Clinical data (animal species, visiting animals/hospitalized animals, and others except for disease type and clinical course including history of antimicrobial agent use) on ill animals at veterinary clinics or hospitals were obtained. We retrospectively analyzed animal-origin BC results extracted from the database in 2014-2016 and those obtained in 2010-2013.

Identification of Group G Streptococcal Isolates from Companion Animals in Japan and Their Antimicrobial Resistance Patterns.

In this study, we conducted a species-level identification of group G streptococcal (GGS) isolates from companion animals in Japan and analyzed antimicrobial resistance (AMR) patterns. Strains were isolated from sterile and non-sterile specimens collected from 72 animals with clinical signs or symptoms in April-May, 2015. We identified the strain by 16S rRNA sequencing, mass spectrometry (MS), and an automated method based on their biochemical properties.

A study on Borna disease virus infection in domestic cats in Japan.

Borna disease virus (BDV) infection causes neurological disease in cats. Here, we report BDV infection in 199 hospitalized domestic cats in the Tokyo area. BDV infection was evaluated by detection of plasma antibodies against BDV-p24 or -p40.

Large-scale survey of adverse reactions to canine non-rabies combined vaccines in Japan.

Canine non-rabies combined vaccines are widely used to protect animals from infectious agents, and also play an important role in public health. We performed a large-scale survey to investigate vaccine-associated adverse events (VAAEs), including anaphylaxis, in Japan by distributing questionnaires on VAAEs to veterinary hospitals from April 1, 2006 through May 31, 2007. Valid responses were obtained for 57,300 vaccinated dogs at 573 animal hospitals; we obtained VAAEs information for last 100 vaccinated dogs in each veterinary hospital.