Tuberculosis Screening and Treatment Technical Instructions(TB TIs) using Cultures and Directly Observed Therapy (DOT) Implementation

View a map showing the populations being screened

The following table displays applicants for U.S. immigration being screened according to the Technical Instructions for Tuberculosis Screening and Treatment using Cultures and Directly Observed Therapy (DOT) by country, population, and start date. Note: All other applicants for U.S. immigration are being screened according to the 1991 Tuberculosis Technical Instructions.

Country	Population	Start date
Bangladesh	All applicants	June 15, 2011
Botswana	All applicants	March 3, 2008
Burundi	All applicants	April 1, 2009
Cambodia	All applicants	February 1, 2010
Cameroon	All applicants	December 12, 2011
Canada	All applicants	April 1, 2012
Central African Republic	All applicants	December 12, 2011
Chad	All applicants	December 12, 2011
China	All applicants	July 1, 2009
Colombia	All applicants	August 15, 2011
Comoros Islands	All applicants	April 1, 2009
Dominican Republic	All applicants	February 2, 2009
Egypt	All applicants	November 15, 2009
El Salvador	All applicants	January 1, 2012
Eritrea	All applicants	April 1, 2009
Ethiopia	Refugees (Eritreans)	March 10, 2009
	All applicants	April 1, 2009
Equatorial Guinea	All applicants	December 12, 2011
Georgia	All applicants	January 1, 2011
Ghana	All applicants	October 1, 2010
Guatemala	All applicants	May 2, 2011
Haiti	All applicants	September 26, 2009
Hong Kong SAR	All applicants	November 3, 2008
India	All applicants	October 1, 2010
Japan	All applicants	June 1, 2009
Jordan	All applicants	April 5, 2009
Kenya	Refugees (includes Ethiopians, Somalis, and Sudanese)	January 1, 2008
	All applicants	April 1, 2009
Lesotho	All applicants	March 3, 2008
Macau SAR	All applicants	November 3, 2008
Malaysia	Refugees (Burmese)	January 1, 2009
	All applicants	November 1, 2011
Mauritius	All applicants	April 1, 2009
Mexico	All applicants	October 1, 2007
Mozambique	All applicants	March 3, 2008
Namibia	All applicants	March 3, 2008
Nepal	Refugees (Bhutanese)	December 13, 2007
	All applicants	August 2, 2010
Nigeria	All applicants	October 1, 2010
Philippines	All applicants	October 1, 2007
Rwanda	All applicants	April 1, 2009
Seychelles	All applicants	April 1, 2009
Singapore	All applicants	November 1, 2011
Somalia	All applicants	April 1, 2009
South Africa	All applicants	March 3, 2008
South Korea	All applicants	May 2, 2011
South Sudan	All applicants	July 9, 2011
Swaziland	All applicants	March 3, 2008
Taiwan	All applicants	April 1, 2009
Tanzania	Refugees (Burundian)	January 1, 2008
	All applicants	June 5, 2008
Thailand	Refugees (includes Burmese and Hmong refugees)	April 9, 2007
	All applicants	April 25, 2011
Turkey	All applicants	February 4, 2008
Uganda	All applicants	March 2, 2009
United Kingdom	All applicants	April 1, 2012
Vietnam	All applicants	February 1, 2008