Recent virus developments that are impacting people around the globe are forcing us to recognize just how fast a viral infection can spread. As with any virus, doing what it takes to strengthen your immune system can have a positive impact. Loading up on Vitamin C is a sure way to boost your immune system. You can get Vitamin C by eating foods like oranges, kale, papaya, cauliflower, broccoli, and bell peppers. Fortunately, antiviral herbs could also help to strengthen your immunity, even yielding better results.