Salmon-Challis National Forest, Idaho. It is the second largest National Forest in the continental United States. In 1876, the US Congress created an office to evaluate the conditions of forests in the US. In 1891, President Theodore Roosevelt assigned the control of the newly named, national forests to the US Forest Service.
Cold sores are caused by certain strains of the herpes simplex virus (HSV). HSV-1 usually causes cold sores.
Cold sores are caused by 2 types of herpes simplex viruses. Cold sores are common. In most cases, people contract the virus as young children. You may get the virus from: Contact with the fluid from a cold sore of another person, or genital herpes sores.