Q&A: How often should a celibate person get tested for HIV or STDs?

Q:How often should a celibate person get tested for HIV or STDs? I’ve been celibate for 5 1/2 years. Since 2006. My last test was 2009; negative. Is it a waste of time and money to get tested yearly if you are not active? Before I become active again we will get tested together. ~ April Freeman