@poised.aries, Zika? As far as I have read that’s more about if your becoming pregnant or are pregnant. Heat stroke I’m sure could happen. But just like anywhere you are where it’s hot mexico or Canada you take precautions and keep in the shade. I’m not necessarily saying I’m wanting to bring a newborn but maybe 8 months or so.
We didn’t travel internationally with our kids till 12 months, and that included even flying home to Scotland not just a holiday but that was just what we felt comfortable with lol I think it all depends where your going etc and what you feel comfortable with. Generally when we go to all inclusive resorts for a holiday they are adult only but that’s just because its our “Darrell and Heather” time lol I’d suggest though if your going to be flying with a young child make sure you get a good medical coverage just in case!