Genetic studies to re-affiliate Edwardsiella tarda fish isolates to Edwardsiella piscicida and Edwardsiella anguillarum species

Pathologic changes in cultured Nile tilapia (Oreochromis niloticus) associated with an outbreak of Edwardsiella anguillarum

“…in China (Shao et al, ). Since then, several isolates once identified as E. tarda or E. piscicida have been reassigned to E. anguillarum (Buján et al, ; Dubey et al, ; Shao et al, ). Its presence in the United States has been demonstrated among archived isolates from striped bass ( Morone saxatilis ) dating back to 1994 (Reichley et al, ).…”

“…species, blue striped grunt ( Haemulon sciurus ) and tilapia ( Oreochromis sp.) (Buján et al, ; Griffin et al, , ; Oguro et al, ; Reichley et al, ; Ucko, Colorni, Dubytska, & Thune, ) with high mortality reported in other fish species following experimental challenge (Griffin et al, ).…”

Immunogenicity of a bivalent protein as a vaccine against Edwardsiella anguillarum and Vibrio vulnificus in Japanese eel (Anguilla japonica)

“…Some strains of E. piscicida pathogenic to fish, previously identified as E. tarda , was described in 2013 (Abayneh, Colquhoun, & Sørum, ), and a new species named E. anguillarum , also previously identified as E. tarda , was isolated from diseased eel (Reichley et al, ). Until 2016, 13 strains of E. anguillarum isolated from diseased eels in our study were first identified as E. tarda (Duan, ; Hu, ), and then all 13 strains were identified as E. anguillarum according to the method of Buján et al ().…”

“…The occurrence of bacterial diseases is the common factor that affects Japanese eel production in China. Edwardsiella anguillarum , identified as Edwardsiella tarda before 2015 (Buján et al, ; Shao et al, ) and Vibrio vulnificus (Esteve‐Gassent, Nielsen, & Amaro, ; Haenen et al, ; Reichley et al, ) are two important bacterial pathogens in eels farming, and cause serious disease and high levels of mortality in cultured eels resulting in considerable economic losses in Chinese aquaculture (Guo, ; Guo et al, ; ). These two pathogens are also recognized as causing serious diseases in a variety of fish species globally (Griffin et al, ; Jheng et al, ; Lee et al, ; Shao et al, ; Tsao et al, ).…”

Recovery and confirmation of Edwardsiella piscicida from a black crappie Pomoxis nigromaculatus (Lesueur, 1829)

“…Contemporary investigations identified multiple distinct taxa within organisms previously classified as E. tarda , each with varying pathogenicity in different hosts (Abayneh, Colquhoun, & Sørum, ; Griffin et al, ; Matsuyama, Kamaishi, Ooseko, Kurohara, & Iida, ; Wang et al, ; Yamada & Wakabayashi, ; Yang et al, ). This led to the erection of Edwardsiella piscicida (Abayneh, Colquhoun, & Sørum, ) and Edwardsiella anguillarum (Shao et al, ), which represent strains formerly categorized as typical and atypical fish pathogenic E. tarda , respectively (Buján et al, ; Reichley et al, ; Sakai, Yuasa, Sano, & Iida, ).…”