The CDC provides travel health notices for travelers regarding possible health issues at their destination site. Health issues at any destination can be created by severe weather (floods, hurricanes, etc.), no power resources available, no potable (drinkable) water, insect or animals, outbreaks of diseases or wars. The CDC provides a travelers health page, as well as the US Department of State on their Travel Alerts and Warnings page. For weather conditions, visit the NOAA International Weather Selector page.
4 Types of Notices
Watch A (Level 1) notice encourages travelers to practice usual precautions, such as, vaccinations, hand washing, and avoiding mosquitoes.
Alert (Level 2) notices encourage travelers to practice enhanced precautions, such as, additional vaccinations, and monitoring for local disease outbreaks.
Warning (Level 3) notices encourage travelers to avoid non-essential travel because they are at risk for exposure, such as, a large scale outbreak, war.
Avoid (Level 4) notices instruct travelers to avoid all travel due to dangerous situations that can put their life at risk.
Animal safety, such as, exposure to bites, scratches, saliva, and fecal/urine from cats, dogs, bats, rats, and insects, can result in long term or permanent illness or death. Rabies is still a very common infection around the world. Insect bites from fleas, flies, mosquitoes, ticks, and bed bugs can cause a host of infections from mild to serious.
Hypothermia and frostbite can be acquired from destinations with cold weather.
Sun or heat exposure from hot weather destinations and UV rays can cause sunburns, and heat stroke.
High altitudes can cause altitude sickness which can then result in flu like symptoms, carbon monoxide poisoning, pulmonary and cerebral edema. High altitudes have a low pressure of oxygen that affects humans more than animals.
Natural disasters can cause injury by blunt trauma, drowning, and crush related deaths.
Food and water safety is crucial to the traveler. Fresh cold pasteurized milk, alcohol, and steaming hot drinks and food should be safe. Heat kills germs. Bottled and canned water and drinks are safe if the traveler opens them. Buffets can lose heat and get contaminated. Dry or packaged foods are usually safe as long as it is not handled by others. Avoid raw food, street food, and bush meat as Ebola and SARS can be spread to the traveler. Tap water is risky for drinking, showering, and brushing teeth. Fountain drinks and ice are also risky. Fresh juice is safe if washed in safe water and squeezed by you.