This fact sheet gives general information about what a TB contact investigation is and why it is important. Also available in Amharic, Arabic, Bosnian/Croatian/Serbian, Hmong, Khmer, Laotian ,Oromo, Russian, Somali, Spanish, Tibetan, Vietnamese URLs http://www.health.state.mn.us/divs/idepc/diseases/tb/factsheets/contactinvest.html