Every year around 11,000 new Tuberculosis (TB) patients are discovered and 2,000 of them are from Colombo.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/over-11000-tuberculosis-patients-annually
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/daily-news-sri-lanka
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sri-lanka
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tuberculosis
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/colombo