Permanent quarantine was imposed on people with contagious deadly diseases in some countries, for example, AIDS victims in Cuba, during the 1980's and early 1990's. The quarantined people suffer from social isolation and the loss of their freedom to circulate normally in society. This creates a quarantined community that exists only to wait for death.
In Cuba, blood tests are required for pregnant women, blood donors, people with sexually transmitted diseases, and Cubans who have lived abroad. More than 17 million blood tests have been conducted, and quarantine is initially mandatory for those with AIDS. Since 1994, some AIDS victims have been permitted to return home.