Bhutan is generally a very safe country with incredibly friendly people. However, it is always wise to take precautions for your own personal safety when travelling, both in term of physical dangers as well as your health.
The World Health Organization (WHO) does recommend that visitors to Bhutan have the following vaccines:
• Adult diptheria and tetanus
• Hepatitus A
• Hepatitus B
• Japanese B Encephalitis
All people entering Bhutan who have visited a country infected with Yellow Fever in the past six days are also required to be vaccinated against that disease.
Eating local food is one of the greatest health risks for travelers in the form of traveler’s diarrhea. Try to stick to freshly cooked food and avoid buffet food that looks as though it has been sat there for a while.
Bhutan is very popular with trekkers and this activity entails its own risks. Make sure you are aware of the risks of altitude sickness. If you will be reaching altitudes of more than 3000m make sure you are fully aware of how to prevent, recognize and treat Acute Mountain Sickness (AMS).
Take precautions against mosquitoes during the day and at night as Dengue fever is present, although cases of it are rare.