Denmark has been officially recognised as having eliminated mother-to-child transmission of HIV and Syphilis according to a press release issued by the World Health Organization on 27 February 2026. In doing so it becomes the first member of the European Union and the third European country to achieve this status (behind Moldova and Belarus, both of which were confirmed as having ended mother-to-child transmission of both diseases in 2016).
The World Health Organization is aiming for all countries to achieve the triple elimination of mother-to-child transmission of three critical diseases, HIV, Syphilis, and Hepatitis B, although to date only a single country has passed this milestone, the Maldives in October 2025. Denmark's progress makes it one of 23 countries to have ended mother-to-child transmission of at least one of these diseases, alongside Anguilla, Antigua and Barbuda, Armenia, Belarus, Belize, Bermuda, Brazil, Botswana, Cayman Islands, Cuba, Dominica, Jamaica, Malaysia, Maldives, Montserrat, Namibia, Oman, Republic of Moldova, Saint Vincent and the Grenadines, Sri Lanka, St. Kitts and Nevis, and Thailand.
The confirmation of Denmark's status comes following assessments by the World Health Organization's Regional Validation Committee for Europe, and Global Validation Advisory Committee in 2025. In order to be confirmed, it was necessary to demonstrate that 95% of all pregnant women in Denmark were tested for the diseases, and that new infant infections were below 50 in 100 0000 births. Denmark currently has 5950 people living with HIV, with less than 0.1% of pregnant women affected. It is possible to completely suppress the disease with antiretroviral treatments, preventing development of symptoms and all forms of transmission, including mother-to-child. In 2024, Denmark reported 626 cases of Syphilis, 524 in men and 102 in women; infections with this disease can be eliminated with antibiotics. Denmark is still working towards ending mother-to-child transmission of Hepatitis B.
Human Immunodeficiency Virus, or HIV, is a form of Lentivirus which causes infections in Humans, spread through sexual intercourse or exchange of blood. Notably, the Virus infects the cells of the Human immune system, where it is hard for that immune system to attack, and eventually leads to a breakdown of the immune system known as AIDS (Acquired Immune Deficiency Syndrome), during which the body becomes vulnerable to a wide range of infections, including many by micro-organisms which are not usually pathogenic.
Untreated, HIV invariably leads to AIDS, and AIDS is invariably fatal, but, as with Syphilis, HIV infections can go through long phases of dormancy, leaving infected people unaware that they have the disease. Neither an effective vaccine nor a cure for HIV has yet been developed, however, it is possible to suppress the infection with a combination of anti-viral drugs, allowing patients to lead relatively normal lives, as long as their supply of antivirals is not interrupted. Children born to mothers with HIV are not automatically infected, as the Virus is usually unable to cross the placenta, but there is a high chance of infection during birth if the mother is not receiving treatment.
Syphilis is a sexually transmitted disease caused by the Spirochaete Bacterium Treponema pallidum. The symptoms of Syphilis can be variable, and it can go through long periods of dormancy, making the disease difficult to diagnose without modern testing methods. Syphilis infection in pregnant women leads to a raised risk of miscarriage, and infants born with the disease are prone to physical deformities, damage to the liver and spleen, and neurological problems. Syphilis can be treated with a range of antibiotics, including penicillin, although the development of a vaccine has proved difficult.
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