Population Screening and Treatment of LTBI in TB Control in the US

TB Prevention and Control in the United States

Slide 3

Therapy for Latent Tuberculosis Infection

Slide 5

Slide 6

Slide 7

Slide 8

Slide 9

Slide 10

Slide 11

Slide 12

Newest Terminology

Slide 14

Slide 15

Reported TB Cases per 100,000 Population
United States, 1953 – 2000

Slide 17

Factors Affecting the Impact of TTTLTBI

TB Prevention Effectiveness

The Tuberculin Skin Test (TST)

Slide 21

Slide 22

Prevalence rate of LTBI

Positive Predictive Value of a Tuberculin Test
Am J Respir Crit Care Med; 2000, Vol 161, p 1389

Slide 25

Skin Test Reactions to Mycobacterium tuberculosis Purified Protein Derivative and Mycobacterium avium Sensitin Among Health Care Workers and Medical Students in the United States

Slide 27

Tuberculosis Screening in Private Physicians' Offices, Pennsylvania, 1996

QuantiFERON®-TB (QFT)

QFT        vs.       TST

Learning Objective
(QuantiFERON)

Factors Affecting the Impact TTTLTBI

TB Prevention Effectiveness

Slide 34

Risk of Progression to TB

Risk of TB Disease by Time of M. tb Infection

Slide 37

Slide 38

Slide 39

Slide 40

Factors Affecting the Impact of TTTLTBI

TB Prevention Effectiveness

Issues Associated With Completion of TLTBI

Acceptability of Short-Course Rifampin and Pyrazinamide Treatment of Latent Tuberculosis Infection Among Jail Inmates

A Tuberculin Screening and Isoniazid Preventive Therapy Program in an Inner-city Population

Optimal Duration of INH Therapy for the TLTBI, MMWR 2000;49(No.6)

Effect of the Duration of INH Therapy on the Prevention of Active TB


How Much Isoniazid Is Needed for the Prevention of Tuberculosis?

Percentage of Infected Contacts
 Age 15 - 34
Completing Treatment for LTBI

TB Prevention Effectiveness

Slide 51

Isoniazid Preventive Therapy
HIV Infection - TST Positive

Short-Course Regimens
HIV Infection - TST Positive

Problems Associated with TLTBI

USPHS Study 26:  Highly intermittent short-course treatment of LTBI

Factors Affecting the Impact of TTTLTBI

Toxicity of Isoniazid in Persons Without HIV Infection

Reports of Severe Liver Injury Associated
with RZ Treatment of LTBI
October 2000 – May 23, 2002

Slide 59

Essential TB Infection Control Activities

Slide 61

Slide 62

Slide 63

Slide 64

Slide 65

Slide 66

Slide 67

Slide 68

Slide 69