Bacterial infections and noninfectious inflammatory conditions also may cause encephalitis. An infection may result in one of two conditions affecting the brain: 1  Primary encephalitis occurs when a virus or other infectious agent directly infects the brain. 2  The infection may be concentrated in one area or widespread. There are two types of herpes simplex virus (HSV). 2  Either type can cause encephalitis. 3  HSV type 1 (HSV-1) is usually responsible for cold sores or fever blisters around your mouth, and HSV type 2 (HSV-2) commonly causes genital herpes.
The wolf spider is often mistaken for a tarantula because it is similar in appearance. Wolf spiders are also mistaken for nursery web spiders, but wolf spiders do not spin webs and their bodies are more robust than nursery web spiders, which are generally thin with pointed rear ends.
Burrows in the Ground. Wolf spiders do not spin webs and reside instead within burrows. These burrows may be open or sealed with silken doors. In rainy seasons, wolf spiders plug their burrows with pebbles and build turrets to deflect floodwater.Twigs may also be placed at the top of the burrow.urrows in the Ground. Wolf spiders do not spin webs and reside instead within burrows. These burrows may be open or sealed with silken doors. In rainy seasons, wolf spiders plug their burrows with pebbles and build turrets to deflect floodwater.