Hands are the biggest source of germs, so you must pay attention to the cleanliness of your hands when traveling abroad. Generally speaking, wash your hands with hand sanitizer before touching your eyes, mouth and nose, after sneezing and coughing, after going to the toilet, after touching public goods and telephones, and after coming back from the outside.
2. Pay attention to food hygiene
Diseases are transmitted through the mouth. Pay attention to food hygiene. It is best to follow the principle of "heating, cooking and peeling" and avoid eating food contaminated by bacteria and toxins. It's best not to eat uncooked seafood, fish or meat, but also carefully eat salads, uncooked vegetables, cold cuts, raw fruits that can't be peeled, ice cream and all unsterilized dairy products.
3. Prevention of infectious diseases
Almost all countries and places have infectious diseases that you don't understand. One of the best ways to avoid infectious diseases when traveling abroad is to inject vaccines to avoid contact with animals or being bitten by mosquitoes. For example, yellow fever, dengue fever, rabies, malaria and Japanese encephalitis are all caused by animal infections and mosquito bites.
4. Healthy sex life
Going on vacation and traveling abroad gives people the opportunity to have sex with strangers. And unclean sex may bring hepatitis B, syphilis, gonorrhea and even AIDS. Therefore, we should avoid sexually transmitted diseases when traveling, such as avoiding promiscuity, not sharing syringes with others, and not using razors and toothbrushes.