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.
How do you catch a cold sore? A cold sore is caused by the Herpes Simplex Virus type I. Most adults have been exposed to the virus, with initial infection usually occurring in childhood, probably after sharing a drink or being kissed by a person with the infection.