ABSTRACT
What is already known about this topic?: S.1,4,[5],12:i:- and S. Rissen are emerging serotypes of Salmonella that require close monitoring for antimicrobial resistance and containment of their spread. What is added by this report?: The study aimed to identify antimicrobial resistance genes (ARGs) in S.1,4,[5],12:i:- and S. Rissen strains isolated from environmental sewage in Guangzhou City, Guangdong Province, China. A phylogenetic tree was constructed using single nucleotide polymorphism data to assess genetic relatedness among strains, offering insights for Salmonella infection outbreak investigations in the future. What are the implications for public health practice?: It is crucial to implement strategies, such as integrating different networks, to control the spread of drug-resistant Salmonella. Novel technologies must be utilized to disinfect sewage and eliminate ARGs. Ensuring food safety and proper sewage disinfection are essential to curb the dissemination of Salmonella.