Isolation of Listeria monocytogenes from peridomestic birds and captive wild animals

Listeria monocytogenes is an important foodborne pathogen responsible for septicaemia, meningitis and abortions. There are several animal reservoirs; however, the role of wild animals and peridomestic birds remains underestimated. We have screened 270 faecal samples of wild animals in captivity (18 species) and peridomestic birds (12 species). Listeria species were isolated from seven (6.66%) mammals and two (1.21%) birds. L. monocytogenes was isolated from barking deer, porcupine, pigeon and crow. Isolated L. monocytogenes were virulent strains of 4b serogroup. There is a need to explore the role of such nonconventional sources in the spread of L. monocytogenes in nature.