For 30 years, World AIDS Day aims to promote awareness and combat discrimination related to the disease.
Although HIV treatment has made tremendous progress since reaching epidemic proportions in the early 1980s, attitudes towards this disease vary from country to country.
Here is a guide to countries that currently restrict travel for people with HIV.
Bhutan
Any visitor staying for 14 days is free to do so, but those staying longer on vacation will be tested for HIV in the last six months. Refusal of entry or expulsion is possible without this.
Brunei
Although there is no mandatory testing system in place, those who are known to be HIV-positive are at risk of expulsion. A test is required for anyone looking for a work or study visa.
Equatorial Guinea
Travelers are required to check that they have received a yellow fever vaccine. A negative HIV test may also be required and a refusal of entry or deportation is possible without testing.
Iran
Although Tehran does not impose restrictions on visitors up to three months, South African travelers may be invited for an HIV test and are advised to contact their embassy before departure. The country may refuse visas to HIV-positive travelers and those seeking a work or residence visa require an HIV-negative test.
Iraq
Baghdad requires that anyone who stays longer than 10 days pass a test in a state laboratory. He could refuse entry or expel anyone, even diplomats.
jordan
HIV-positive people may be refused entry at the border. The presence of antiretrovirals among their possessions can be used to confirm the carrier status.
Krygystan
People staying more than 30 days must provide documents proving their HIV-negative status.
Papua New Guinea
Medical documentation may be required, including an HIV test, for all travelers 16 years of age and older. The same applies to those seeking residence.
Qatar
Travelers staying longer than one month must pass an HIV test in a laboratory in the State of Qatar. Sufferers can be refused or deported.
Russia
Moscow does not require proof of HIV for stays of less than three months, but people who apply for a work visa or student visa must have a document attesting to their negative status.
Singapore
No HIV test is required for tourists staying 30 days. Foreign certificates attesting HIV-negative conditions are accepted, but the import of antiretrovirals must be approved by the country's Health Science Authority. HIV-positive people may be deported, but not if they are married to a Singaporean citizen.
Solomon Islands
Visitors and residents are free to stay for 90 days without a test, but are required to provide documentation for a clear HIV test for longer.
Sudan
A negative HIV test may be necessary to prove entry and will be necessary for those wishing to stay longer than 90 days.
suriname
People from Africa, Asia and Eastern Europe need a medical certificate stating that they are not infected with HIV and that they can import antiretrovirals for personal use if they have a prescription from their doctor. Those who are later HIV positive may be deported.
Taiwan
Visitors are free to stay for three months without being tested and to provide antiretrovirals for their personal use. However, HIV-positive people may be denied entry and subsequently recognized residence visa holders may be ordered to leave with three months' notice.
Tunisia
People staying more than 30 days may need to try HIV after arrival. Antiretroviral drugs are allowed for personal use. A test is required for anyone seeking a work or study visa.
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Turks and Caicos Islands
People staying more than 30 days must be tested for HIV after arrival. A test is also required for anyone seeking a work or study visa.
United Arab EmiratesA flawless stay
No HIV test is required for tourists, but those seeking a work or residence visa must be tested upon arrival. Foreign documentation is invalid and the importation of antiretrovirals is not allowed.