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3. Which of the following statements are true concerning contact investigations?
Select all that apply

  • a) Contacts of TB patients have a higher risk of becoming infected with TB

  • b) Many times an index case lives with a child who has been diagnosed with TB

  • c) Contact investigation for TB disease should only be carried out when there are HIV-infected individuals in the home

  • d) Interview all household contacts of TB patients for signs and symptoms of TB

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