Some basic tips for avoiding food-borne illness, like the e-coli in Germany:
- Most importantly: Wash your hands before you eat, and before you handle food. Use soap and water, antibacterial wipes, or hand-sanitizing gel (I personally don't travel anywhere without the gel and wipes).
- Be careful with raw foods. Wash vegetables and fruit thoroughly, or even better: peel them, if you're eating them raw. My kids love fruit and veggies, and it's sometimes a drag to have to be so cautious about this type of food when traveling, but it's better than getting sick.
- Eat only food that has been thoroughly cooked, and eat it as soon as it has been cooked. Food that has been kept warm for extended periods of time, for example in a buffet, can become contaminated.
- Avoid eating dairy products if you're not sure that they've been properly refrigerated.
- Depending on where you're traveling to, it might be worth it to get vaccinated against Hepatitis A and B, two common food-borne illnesses.
- The Public Health Agency of Canada - Offering general advice and a list of recommended vaccinations for travel.
- WHO's page for International Travel and Health - It has up-to-date information about diseases and vaccines, and also a handy interactive map showing where various diseases are common.
- The CDC's page on Travelers' Health and Vaccinations - Lots of information and resources here.
- KidsTravelDoc.com - This site has specific information and tips for vaccinations for infants and children.