HIV testing needs to be a part of the annual physical check up, just like blood sugar testing for diabetes. Hep A/B/C testing should be as well. If I was forced to be infected with HIV or HepC, I would take HIV over HepC. C is some nasty shiat and there is no vaccine unlike the A and B varieties.

Yes, it is, and obviously this makes it difficult to prevent it from spreading. It can be asymptomatic for months to years.