who is agitated. In some countries, antipsychotics and sedatives can be forcibly administered to those who are committed, using intramuscular depot injection. Those with anorexia nervosa may receive force-feeding. Those with infectious diseases such as tuberculosis can be detained and isolated. Japan requires transgender people to undergo sterilization to have their gender formally recognized. In the Czech Republic, men convicted of sex offenses are in practice given the choice of long-term detention or castration. Brazil, Bulgaria, Costa Rica, Croatia, Czechia, France, Hungary, Indonesia, Italy, Poland, and Russia make certain vaccinations mandatory. Coercion in voluntary mental health treatment Individuals may be forced to undergo mental health treatment legally-speaking "voluntarily" under the threat of involuntary treatment. Many individuals who legally would be viewed as receiving mental health treatment voluntarily believe that they have no choice in the matter. Studies show that 51%, 35% and 29% of mental health patients have experienced some form of informal coercion in the US, England and Switzerland respectively. Once voluntarily within a mental health hospital, rules, process, and information asymmetry (a healthcare providers know more how the hospital functions than a patient) can be used to achieve compliance from a person in voluntary treatment. To prevent someone from leaving voluntarily, staff may use stalling tactics made possible by the fact that all doors are locked. For example, the person may be referred to a member of staff who is rarely on the ward, or made to wait until after lunch or a meeting, behaving as if a person in voluntary treatment does not have the right to leave without permission. When the person is able to talk about leaving, the staff may use vague language to imply that the person is required to stay, relying on the fact that people in voluntary treatment do not understand their legal status. Szmukler and Appelbaum constructed a hierarchy of types of coercion in mental health care, ranging from persuasion to interpersonal leverage, inducements, threats and compulsory treatment. Here persuasion refers to argument through reason. Forms of coercion that do not use legal compulsion are referred to as informal coercion or leverage. Interpersonal leverage may arise from the desire to please health workers with whom a relationship has formed. Threats may revolve around a health worker helping or hindering the receipt of government benefits. Non-voluntary treatment In certain limited circumstance a patient may have capacity but be unable to consent to