Having a disease or medical condition may affect your eligibility for a B-1 Visa. The U.S. embassy or consulate will consider the nature and seriousness of the condition, the likelihood of it requiring medical treatment in the United States, and any potential impact on public health when evaluating your visa application. If you have a disease or medical condition, it is advisable to consult with an immigration attorney or a U.S. embassy or consulate to determine your eligibility for a B-1 Visa. You may also be required to provide additional documentation, such as a medical evaluation, to support your visa application.