Well that is what this foreign English teacher in Korea thinks:

With a Masters in Education, Andrea Vandom went to Korea to teach university-level English. Since early 2006 she created textbooks and curriculum, taught English to university and adult students, and invented a class where her students learned English by playing sports. She loved her students and co-workers enough to renew her two-year contract in 2008. Needless to say, not someone Korea would do well to threaten with expulsion.

But that’s precisely what happened, because Andrea, who had been in Korea for three years without such a requirement, refused to take an HIV test in order to continue working there. She was subsequently threatened with deportation.

As of December 2007 (when the Korean Ministry of Justice established the policy in a memo), foreign workers are required to take HIV tests within three months of arriving in Korea, and if they are found positive, are deported. Foreigners who acquire HIV while in Korea, if found out, will be deported, usually within a week. Hospital policy is to submit testing results to immigration offices to expedite the expulsion of HIV-positive expats. Foreigners with HIV have no options for seeking out medical treatment; the best they can do is get tested at the one anonymous testing center and fly to places like Thailand in search of medicine.

“My visa renewal came up in March 2008,” writes Andrea. “I heard of the new regulations through the grapevine. I thought surely they wouldn’t be targeted towards me – I’d been living and working there for 2 years. I cleared immigration the first time, had good standing with my university, and my job in no way was related to the transmission of AIDS.

“Given how long I was in the country already, it was illogical to require me to submit these documents. I was being pinpointed as a disease carrier simply because I am not of Korean blood. Suddenly they saw me as morally suspect and a threat to the community because I was a foreigner. These rules attach a stigma to HIV carriers, discourage voluntary testing, and spread the disease.”

Immigration would contact Andrea or her employer in some way about once a week. They threatened deportation several times if paperwork was not submitted by a certain date. “They had invited me here, allowed me to work and live,” Andrea writes. “Then the next day, I am an AIDS risk and a criminal. Really?  [Huffington Post]

This is one of those few times I’ll say this, but go ahead and read the rest of the Huffington Post article.  According to the article the South Korean government has signed treaties that is supposed to make them comply with allowing entry of people with th HIV virus.  I would like to read more information on these treaties before drawing any firm conclusions, but if the Korean government is not violating signed treaties and wants foreigners to be tested for HIV and makes it a requirement for employment then so be it.