The best way to prevent a viral infection is by keeping your immune system healthy. Since there's no real treatment for viruses—aside from supportive care for symptoms—a lot of you are looking for natural ways to boost your immune system. The good news is that there are several things you can do. Many of them are free, and some involve in investment in healthy foods and/or supplements. Of course, this post is meant for information purposes only. Check in with your doctor befo