Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Prevalence of Listeria (spp.) in wild rats captured in the Kanto area of Japan.

Abstract

In the Kanto area total of 245 wild rats were captured. All rats captured in Ikebukuro (110 rats) and 9 out of 41 rats in Yokohama were Rattus rattus, and all other 126 rats were Rattus norvegicus. In Kashima and Ikebukuro, Listeria was isolated from 28 rats (77.8%) and 27 rats (24.5%), respectively, but in the other 4 areas Listeria was isolated from 0-7% rats. Listeria monocytogenes was isolated from 12 rats (10.9%) captured in Ikebukuro and 2 rats in Kashima and Numazu. Rats are thought to be reservoirs of L. monocytogenes.