Second what Peterbj7 said. We went to Roatan in August and got Tetanus, hep a/b, typhoid and malaria meds. Tetanus and hepatitis are good to have anywhere. Most people probably don't get typhoid but it's recommended by CDC for Honduras. Malaria I am iffy about. We took the pills (one a week for 4 weeks) but I got really sunburned and found out the aloe vera with litocane I was using makes Chloroquine ineffective (the litocane part only). At that point I cared more about the pain relief than if I would develop malaria symptoms. You will get bit but wear longer clothing when not heading out to dive and always apply repellent and it shouldn't be horrible. Knowing and being prepared in advance is the key! It's worth the trip.