I had no idea that Zika was discovered in 1947 and that there was an outbreak in 2007. As far as I knew, it was only the very recent outbreak that Zika was discovered. How wrong I was. It was actually really heartening to read this, because I want to start a family in the next few years and I was practically twitching with anxiety. I tend to get bitten by a ton of mosquitoes every summer no matter what I do while my husband doesn't get bit at all. And what about global climate change pushing things like this further north? It is good to know that it comes in and out of viral "fashion" and that there is a herd immunity aspect to it. Maybe I can put down the mosquito shotgun for now and aim for a slightly stronger spray for my clothing.