Adjusting to your new surroundings, taking your medications regularly and staying away from harmful foods are important. But while you may think you're taking every precaution to prevent an infection, you should still be wary of other outside factors.
For instance, tuberculosis, or "TB," is very common worldwide. Coming into contact with TB can be very harmful and severe in people with HIV. While you're traveling, stay away from hospitals and clinics where TB patients - specifically patients who are coughing - are being treated. If you find yourself in such a place, see your doctor and get tested for TB when you return to the United States.
Animals also pose a risk for infection. In many foreign countries, animals roam more freely then they do in the United States. If you see animals roaming the streets or beaches be sure to wear shoes to protect yourself from coming into contact with their droppings. You should also wear protective clothing and sit on a towel to avoid direct contact with contaminated sand or soil.
Be careful where you swim and never swallow the water because it can cause you to become sick. Be aware of your surroundings as well. Don't swim in shallow water because it may contain small amounts of sewage or animal droppings that can be harmful to your health. Other bodies of water such as rivers, lakes, streams and even pools that have been improperly chlorinated can also cause infection. Swimming may be fun but your vacation can be ruined if you don't take the proper precautions.