Valid and accepted novel bacterial taxa isolated from domestic companion and agricultural animals described in 2024.

Abstract

Recognizing and updating bacterial names is key to communication between the veterinary clinical microbiology laboratory, veterinarians, and clients. Moraxella oculi sp. nov., distinct from Moraxella bovis and Moraxella bovoculi, was isolated from a cow with infectious bovine keratoconjunctivitis. Several respiratory pathogens were recognized, including Neisseria leonii sp. nov. described from rabbits, Mannheimia indoligenes sp. nov. described from cattle in Europe, and Moraxella haemolytica sp. nov. described from a goat in China. Stenotrophomonas forensis sp. nov. is a novel designation within the Stenotrophomonas maltophilia complex associated with isolates derived from horses. New additions to the Campylobacter genus included Campylobacter californiensis sp. nov., recovered from bovine feces during a raw milk-associated outbreak of campylobacteriosis in humans. Taxonomic revisions were most notable in Gram-positive organisms. A species within genus Jeotgalicoccus has been renamed, and the subspecies designation Kocuria rosea subsp. polaris comb. nov. has been created. Streptococcus suis was revised to Streptococcus suis subsp. suis subsp. nov. in recognition of the initial description of Streptococcus suis subsp. hashimotonensis subsp. nov., which was isolated from people in Japan with bite wounds from boars. Chlamydophila caviae, which causes respiratory disease and abortion in guinea pigs and is zoonotic, has been revised to Chlamydia caviae comb. nov.