Mohammadi, A. Nassor, Z.S. Behlim, T. Mohammadi, E. Govindarajan, R. Al Maniri, A. Smego, Jr R.A. 2008 We conducted an epidemiological and cost analysis for all 13 patients diagnosed with multaidrug resistant tuberculosis 11 pulmonary, 2 extrapulmonary in Oman from January 2000 to October 2005. The disease was secondary, or acquired, in 12 of 13 patients. A total of 140 contacts were screened mean 10.8 persons per patient , but contact tracing revealed no secondary cases. The mean number of drugs that TB isolates were resistant to was 2.8 range 2 5 . A mean of 4.7 drugs were given to patients, the mean length of therapy was 8 months and all ...