tests..But what are the Bars in the Lyme one..And what was the standerd window period for the HIV test in 2003..In January of 2003.In 7 month relationship and still going..Took the HIV test Negative. While I was in my first tri..Baby born test Negative..In 2007 tested for Lyme>positive. I know sometime the tests get changed to perform more better. Thank you for reading..