A new review of research on European wood mice and yellow-necked mice, known as Apodemus species, confirms that these rodents are important hosts for certain tick-borne germs. The review looked at dozens of studies to understand how these mice contribute to the spread of diseases like Lyme disease and Neoehrlichiosis.
The findings show that Apodemus mice are confirmed reservoirs for some Borrelia bacteria and for Neoehrlichia mikurensis. However, their role in spreading other tick-borne pathogens is not straightforward. It depends on the local environment, including the type of landscape, how many other animals are around, and the climate.
Key factors that predict higher tick-borne disease risk include forest cover, temperature, and landscape structure. The review highlights that simply finding the germ in a mouse does not mean the mouse is a good spreader. Other factors, such as the mouse's population density and the presence of other hosts, matter a lot.
This review is a summary of existing studies, not a new experiment. The authors caution that the role of these mice varies greatly across different pathogens and regions. The main takeaway is that controlling tick-borne diseases requires looking at the whole picture: the mice, the ticks, the environment, and human activity.
