The authorities increased security at a tuberculosis hospital near the city of Port Elizabeth where patients with drug-resistant forms of the disease went on a rampage on Wednesday to protest prisonlike conditions. Twenty-two patients were arrested after they pelted the staff members with stones and vandalized equipment. But the local police station and prison refused to admit them, because of fears of the highly infectious disease. Instead, they were returned to the hospital. Patients with drug-resistant strains of tuberculosis are required to live in guarded and isolated quarters that are surrounded by barbed wire.