Travelers to the United States who have been afflicted with a disease of public health significance, a mental disorder which is associated with a display of harmful behavior, or are a drug abuser or addict may be ineligible to receive a visa. If found ineligible, they will require a waiver of ineligibility in order to travel.
At the time you apply for a nonimmigrant visa you are required to furnish from a doctor, specialist and/or other professional person familiar with your case a letter that addresses the following:
- diagnosis and relevant medical history of the your condition;
- current state of health;
- the likelihood of a need for care or hospitalization during your stay in the United States;
- whether you, in the opinion of the doctor, are likely to remain in a stable condition during the trip, and are likely to cope with a strange environment; and
- details of any history of harmful behavior you have shown towards yourself, others, or property.