The resulting information and our initial review of the hivtravel.org database revealed that there are no entry restrictions for PLHIV in 51 countries (see Table S1 , Additional file 1 and Figure 1 ). In Uzbekistan, however, the law mandates that visitors carry a certificate attesting that they are not infected with HIV. Foreigners from countries requiring visas to enter or stay in Uzbekistan will not be issued a visa to enter the country if they are found to be HIV positive. In Georgia, the situation for PLHIV wishing to enter the country is uncertain due to unclear information. In 36 countries, there are also no HIV-related restrictions for long-term visits (see Figure 2 ). In Georgia, the policy on long-term visits is unclear. In eight countries (Belarus, Moldova, Poland, the Russian Federation, Tajikistan, Turkmenistan, Ukraine and Uzbekistan), an HIV test is required for all foreigners wishing to stay for more than three months. In three of these countries (Republic of Moldova, the Russian Federation and Turkmenistan), this requirement also applies to students and employees. In the Russian Federation, an HIV test is not required for citizens of countries in the Commonwealth of Independent States, who do not need visas for longterm stays.