A review of salmonellosis on poultry farms: Public health importance

Salmonella spp. is a bacterial causative agent that can cause salmonellosis in humans and animals. Salmonellosis is categorized as an important zoonotic disease in public health. Infection can be acquired by direct contact and indirect contact with animals. Indirect transmission can occur through contact with the environment around animals or with contaminated objects around poultry farms. Salmonella in humans, which is an infectious disease, has three types of infections, namely typhoid fever, paratyphoid fever, and non-typhoid Salmonella (NTS). Typhoid fever and paratyphoid fever are caused by S. typhi and S. enterica serovar Paratyphi (S. paratyphi), in contrast, S. typhimurium, S. enteritidis, Salmonella enterica serovar newport (S. newport), and Salmonella enterica serovar heidelberg (S. heildeberg) causes non-typhoid Salmonella infection. The distribution of Salmonella is very widespread and persistent in dry environments but can persist in water for up to several months. In poultry, Salmonella can cause clinical disease or subclinical infection in asymptomatic animals which are often referred to as carriers. Infectious disease control in poultry farms always uses antibiotics. High antibiotic use can lead to increased antibiotic resistance. Raising awareness is critical to limiting the inappropriate use of antibiotics.