Flowerteacher55....Wow!! Just wow!! what an amazing detailed answer you gave, thank you soo much for all that clarity!! And yes the transmission rates were listed as a percentage per year, so it begs the question of "how many sex acts per year, as an averaged, were used too calculate the annual transmission rate"...so I u are able to find this detail, then you will have floored me again with your research ability. (but if not don't sweat it, u still done GREAT!!). Thank you sooo much!!