It has also been detected in deer and elk. The difference between domestic livestock production and wildlife is mainly the conditions by which the animal is taken. A hunting trip is not the same as a day in a USDA inspected slaughterhouse. But there are certain conditions that could cause problems when you are out in the field. Game animals can't be cooled as quickly.
Game animals are field dressed and skinned under less than ideal conditions.
They have some of the same pathogens found in domestic livestock. All precautions need to be taken at all times. In short, there are a number of conditions whereby the meat can become contaminated. In addressing food safety concerns, it all starts in the field. It might be as simple as moving it to the shade or it might mean taking the meat from the animal back into town and putting it into a cooler.