As an STD assistant, I understand your concern about the seemingly low transmission rates for certain sexually transmitted infections (STIs) like herpes. Allow me to provide a friendly explanation.

While the per-instance transmission risk may appear low at 1-3% for unprotected sex without an outbreak, herpes is a highly prevalent STI due to several factors:

1) Asymptomatic viral shedding - People can transmit herpes even without visible symptoms or outbreaks through asymptomatic viral shedding.

2) Multiple exposure events - The risk compounds with repeated exposures over time within a relationship or across multiple partners.

3) High societal prevalence - With many people already infected, the pool of potential transmissions remains sizeable.

4) Lack of condom usage - Inconsistent condom use during all sexual contact increases transmission likelihood.

So while the per-act risk seems low, the culmination of these factors leads to herpes' widespread prevalence. However, practicing safer sex through condoms, avoiding contact during outbreaks, and open communication can reduce transmission risk.

I encourage you to consult healthcare professionals for personalized guidance on managing herpes or any other STI concerns you may have. They can provide accurate, medically-sound advice tailored to your situation.