There are four categories of conditions that may render a person inadmissible. The four categories are:

• Communicable disease of public health significance such as Chancroid, Gonorrhea, Granuloma Inguinale, Infectious Leprosy, Infectious Stage Syphilis, HIV, Active TB, etc.
• Failure to show proof of required vaccinations
• Mental or physical disorder with associated harmful behavior
• Drug Abuse or Drug Addiction