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United States of America
This page contains the main health risks for travellers and general recommendations. Travel conditions are different for everyone and each patient's health condition varies. Discuss your trip during a travel consultation with your doctor or in a travel clinic, preferably six to eight weeks before departure.
Important health risks
Insect-borne diseases
Insects can transmit diseases such as dengue, chikungunya (in the South and South-Eastern states and Hawaii) and West Nile virus disease.
Protect yourself against insects.
Tick-borne diseases
Ticks can transmit diseases such as Lyme disease.
Altitude sickness
You may experience altitude sickness in areas above 2500 metres.
Other frequent health risks while travelling
Read these tips before you leave.
Vaccinations
Update of basic vaccinations
Recommended
Other vaccinations
Recommended for some travelers
Discuss with your doctor whether one of the following vaccinations is recommended for you:
Travelers with additional considerations
Additional preventive tips may be useful for you:
