Hello, In 2018 I went to Mexico and discovered when I got back I was already pregnant. I went to my gp and they did a test but never sent it off to test for zika virus because apparently there was too many false positive results. When I asked the doctor when or how would I know about my baby having zika virus he wasn't overly concerned and said by the 20 week scan. I didn't worry about it and my baby was absolutely fine
hope this puts your mind at rest a little.