This is just my opinion, so please make your decisions yourself, but please make sure they are informed decisions and not based on info obtained over the internet or on any forum. People like to help out, but posting something that "they heard" or "someone once told me" doesn't help in making an informed decision. If you are concerned about coming to Jamaica please talk to a doctor or Health Care professional. Don't talk to your neighbor how once heard that a guy shook hands with someone from Narinia (had to come up with a made up country name so I don't offend anybody) and they ended up getting ebola.

So, that facts; 1) Zika is a virus that is a legitimate concern. 2) Zika is present in the Caribbean.

Now the opinion; I wouldn't cancel my trip because Zika is something that can be controlled. It can't be prevented totally, but it can be controlled to a low and acceptable risk. Melanoma is also a legitimate concern, but we have been able to reduce the risk by smattering ourselves with sunscreen. Zika can be controlled to an acceptable risk by using mosquito repellant and using it often. Even indoors and especially at night or after a rain.