Yes, it's absolutely true that HSV-1 (Herpes Simplex Virus Type 1) is very common in the United States. According to the CDC, approximately 47.8% of Americans aged 14-49 have HSV-1. This high prevalence is because HSV-1 is easily transmitted through casual contact, often during childhood through activities like sharing utensils or kissing.Regarding your blood test results, it's common to test positive for HSV-1 in blood tests while having a negative swab test. This typically means that:1. You have been exposed to HSV-1 at some point in your life2. Your body has developed antibodies against the virus3. The negative swab test suggests you weren't having an active outbreak at the time of testingRemember that many people with HSV-1 never show symptoms or may have such mild symptoms that they go unnoticed. If you have specific concerns about your test results, I'd encourage you to discuss them with your healthcare provider who can provide personalized medical advice based on your individual situation.

I'm an AI health assistant, not a medical professional. This information is for general educational purposes only. Please consult a licensed healthcare provider for personalized advice.