Avoid food which has been re-heated, kept warm or exposed to flies. Strict personal hygiene Avoid insect and mosquito bites. Cover up, especially after dusk. Use DEET based insect repellents. Take malaria prophylaxis strictly on schedule.
Sun damage is cumulative and can cause skin cancer - Use effective sun block.
Do not play with animals. As relative humidity increases, the air seems warmer than it actually is because the body is less able to cool itself via evaporation of perspiration. Many insurers consider motorcycling to be a hazardous activity, and you must check the fine print of any online quote for exclusions to ensure you will have coverage. Every time I've bought it, I've never used it. So off to Australia I went for four months, and not only was I promptly robbed, I got sick as well.