While the colder months are more known as the time when contagious illnesses like the flu and norovirus are widespread, summer travel can lead to sickness if you’re not careful! Thousands of people visit rest stops or take planes or trains for vacation – it takes just one infected person to turn these spots into breeding zones for pathogens (disease-causing germs). So what do you need to know about summer illnesses?

According to the U.S. Centers for Disease Control and Prevention (CDC), 22-64% of travelers to developing countries report travel-related health problems. Thankfully most illnesses are mild- but many of the infections travelers report only become apparent after their return home. Whether you get sick at the beginning or end of a trip, or sometime in between, illness can put a damper on the entire experience.