@nadiakat17 I totally agree with you! I watched something on the news last night about this exact same thing! Brazil is NOT a country with a great healthcare record to begin with, and with it being such a highly catholic country, birth control is not regularly practised so there is a high birth rate as well.
But the news report stated that the investigation has begun as regards the microcephaly and that it hasn't yet been determined that all of the "reported" cases have been caused by the Zika virus. I completely agree that the media have really seized hold of this virus reporting and jumped all over it. I know the WHO has issued a statement as well and I know there is some concern about the increase in cases over a short period of time. But for the MAJORITY of people, the virus is of no concern, and there are people that don't even know they've had it! Yes - the biggest concern seems to be for women that are pregnant or trying to become pregnant. But Mexico has only 1 or 2 reported cases and they were in Mexico City, not in the Yucatan or in the are of Cabo. I read that there were 2 cases in Vancouver of people that came home with the virus I believe they had been in the DR but don't quote me on that. I would have to look up the article. But there was someone on tv from the Canadian CDC and he said the breed of mosquitos here cannot support the Zika virus, that it is a breed typical to climates like that in Brazil so there is no concern of the virus being transmitted here by mosquitos.
We've been to Mexico about 6 times now and have never once received a mosquito bite. We were in Cuba a number of years ago and took bug spray with us and it never was taken out of the suitcase! We ended up horribly sick from something else, as did about 8 other people on the resort. I would be more concerned going to the DR than I would about going to Mexico, particularly given that the Chikungunya virus also seems to be very prevalent in the DR. They seem to get it all there!! The fact remains that you're going to countries where the level of "protection" isn't what you're used to at home so naturally you should take precautions. If there are recommended vaccines for a specific country, it only makes sense to get the vaccines.
I'm going to say again what I said earlier - BE AN INFORMED BRIDE. It's that easy. Obviously your guests are going to make their own decisions in the end, and what is best for them. But if you have someone that seems to be spreading panic, try talking to them and discourage them from making comments that might upset other guests, and back it up with information! Forewarned is forearmed! And again - countries like Mexico that rely heavily on tourism aren't going to risk something like this that could cause a mass panic and bring down the levels of tourism. Mexico has proven that they are becoming very proactive in dealing with situations that they can deal with to keep the tourists coming!