There are no particular health risks in Germany.
STDs and AIDS are still present in Germany, as in all European countries.
There is no risk from food and water in Germany. Most travelers do not need to take special food or water precautions beyond what they normally do at home. However, travelers visiting rural or remote areas that are served by unregulated water sources such as private wells should take extra precautions to ensure the safety of their drinking water.
Some vaccines are recommended or required for Germany. The World Health Organization recommends the following vaccinations for Germany: hepatitis A, hepatitis B, rabies, meningitis, polio, measles, mumps and rubella (MMR), Tdap (tetanus, diphtheria and pertussis), chickenpox, shingles, pneumonia and influenza.
Be especially careful during summer months and at high elevation. Because sunlight reflects off snow, sand, and water, sun exposure may be increased during activities like skiing, swimming, and sailing.
Very cold temperatures can be dangerous. Dress in layers and cover heads, hands, and feet properly if you are visiting a cold location.