Isolate QH was identified phenotypically using the API 32GN system as recommended by Altwegg and Zollinger-Iten (1987).
Briefly, the isolate was grown on NA plates (Sinopharm Chemical Reagent Co., Ltd.) at 28 ± 1 C for 24 h, and a bacterial suspension was then used to inoculate the API ID32GN strip (Bio-Merieux, SA) according to the manufacturer’s instructions. The strip was incubated at 28 ± 1 C and observed after 48 h to check against