 By 1986, foreigners intending to stay over a year were required to undergo HIV testing, and HIV-positive people were legally barred from entering China.The "New York Times" reported that police in some cities were instructed to prevent foreigners from coming into sexual contact with Chinese people, including in discothèques, dance halls, and brothels.These early policies of containment, which also included wider crackdowns on drug use and sex work, did little to check the spread of the disease, and possibly hindered initial identification of its domestic reservoirs.