World Health Organization, 2012. Global Tuberculosis Report 2012. Available at: http://apps.who.int/iris/bitstream/10665/75938/1/9789241564502_eng.pdf. Accessed November 1, 2012.
Saito M, Bautista CT, Gilman RH, Bowering A, Levy MZ, Evans CA, 2004. The value of counting BCG scars for interpretation of tuberculin skin tests in a tuberculosis hyperendemic shantytown, Peru. Int J Tuberc Lung Dis 8: 842–847.
Millet JP, Moreno A, Fina L, Del Baño L, Orcau A, de Olalla PG, Caylà JA, 2012. Factors that influence current tuberculosis epidemiology [published online ahead of print 8 May 2012]. Eur Spine J. Available at: http://link.springer.com/article/10.1007%2Fs00586-012-2334-8. Accessed May 21, 2012.
World Health Organization, 2012. Tuberculosis. Available at: http://www.who.int/mediacentre/factsheets/fs104/en/index.html. Accessed July 1, 2012.
Suárez PG, Watt CJ, Alarcón E, Portocarrero J, Zavala D, Canales R, Luelmo F, Espinal MA, Dye C, 2001. The dynamics of tuberculosis in response to 10 years of intensive control effort in Peru. J Infect Dis 184: 473–478.
Sobero RA, Peabody JW, 2006. Tuberculosis control in Bolivia, Chile, Colombia and Peru: why does incidence vary so much between neighbors? Int J Tuberc Lung Dis 10: 1292–1295.
Santiago EM, Lawson E, Gillenwater K, Kalangi S, Lescano AG, Du Quella G, Cummings K, Cabrera L, Torres C, Gilman RH, 2003. A prospective study of Bacillus Calmette-Guérin scar formation and tuberculin skin test reactivity in infants in Lima, Peru. Pediatrics 112: e298.
Raharimanga V, Ratovoson R, Ratsitorahina M, Ramarokoto H, Rasolofo V, Talarmin A, Richard V, 2012. Tuberculin reactivity in first-year schoolchildren in Madagascar. Trop Med Int Health 17: 871–876.
Donald PR, 2000. Childhood tuberculosis. Curr Opin Pulm Med 6: 187–192.
Lockman S, Tappero JW, Kenyon TA, Rumisha D, Huebner RE, Binkin NJ, 1999. Tuberculin reactivity in a pediatric population with high BCG vaccination coverage. Int J Tuberc Lung Dis 3: 23–30.
Pelly TF, Santillan CF, Gilman RH, Cabrera LZ, Garcia E, Vidal C, Zimic MJ, Moore DA, Evans CA, 2005. Tuberculosis skin testing, anergy and protein malnutrition in Peru. Int J Tuberc Lung Dis 9: 977–984.
Madico G, Gilman RH, Checkley W, Cabrera L, Kohlstadt I, Kacena K, 1995. Community infection ratio as an indicator for tuberculosis control. Lancet 345: 416–419.
Getchell WS, Davis CE, Gilman J, Urueta G, Ruiz-Huidobro E, Gilman RH, 1992. Basic epidemiology of tuberculosis in Peru: a prevalence study of tuberculin sensitivity in a pueblo joven. Am J Trop Med Hyg 47: 721–729.
Sandhu G, Battaglia F, Ely BK, Athanasakis D, Montoya R, Valencia T, Gilman RH, Evans CA, Friedland JS, Fernandez-Reyes D, Agranoff DD, 2012. Discriminating active from latent tuberculosis in patients presenting to community clinics. PLoS ONE 7: e38080.
Loret de Mola C, Stanojevic S, Ruiz P, Gilman RH, Smeeth L, Miranda JJ, 2011. The effect of rural-to-urban migration on social capital and common mental disorders: PERU MIGRANT study. Soc Psychiatry Psychiatr Epidemiol 47: 967–973.
INEI, 2009. Las Migraciones Internas en el Peru: 1993–2007. Lima, Peru: Instituto Nacional de Estadística e Informática, 1–185.
World Health Organization, 2012. Global Database on Body Mass Index: An Interactive Surveillance Tool for Monitoring Nutrition Transition. Available at: http://apps.who.int/bmi/index.jsp. Accessed April 1, 2012.
Vidmar S, Carlin J, Hesketh K, Cole T, 2004. Standardizing anthropometric measures in children and adolescents with new functions for egen. Stata J 4: 50–55.
Bouros D, Maltezakis G, Tzanakis N, Tzortzaki E, Siafakas N, 1992. The role of inexperience in measuring tuberculin skin reaction (Mantoux test) by the pen or palpation technique. Respir Med 86: 219–223.
Caviedes L, Moore DA, 2007. Introducing MODS: a low-cost, low-tech tool for high-performance detection of tuberculosis and multidrug resistant tuberculosis. Indian J Med Microbiol 25: 87–88.
Oberhelman RA, Soto-Castellares G, Gilman RH, Caviedes L, Castillo ME, Kolevic L, Del Pino T, Saito M, Salazar-Lindo E, Negron E, Montenegro S, Laguna-Torres VA, Moore DA, Evans CA, 2010. Diagnostic approaches for pediatric tuberculosis by use of different specimen types, culture methods, and PCR: a prospective case-control study. Lancet Infect Dis 10: 612–620.
Moore DA, Evans CA, Gilman RH, Caviedes L, Coronel J, Vivar A, Sanchez E, Piñedo Y, Saravia JC, Salazar C, Oberhelman R, Hollm-Delgado MG, LaChira D, Escombe AR, Friedland JS, 2006. Microscopic-observation drug-susceptibility assay for the diagnosis of TB. N Engl J Med 355: 1539–1550.
Caviedes L, Lee TS, Gilman RH, Sheen P, Spellman E, Lee EH, Berg DE, Montengro-James S, 2000. Rapid, efficient detection and drug susceptibility testing of Mycobacterium tuberculosis in sputum by microscopic observation of broth cultures. The Tuberculosis Working Group in Peru. J Clin Microbiol 38: 1203–1208.
Centers for Disease Control, 2012. Tuberculosis. Available at: http://www.cdc.gov/tb/topic/basics/risk.htm. Accessed April 1, 2012.
Hosmer DW, Lemeshow S, 2000. Applied Logistic Regression. Second edition. New York: John Wiley & Sons, 143–200.
Arnadottir T, Rieder HL, Trebucq A, Waaler HT, 1996. Guidelines for conducting tuberculin skin test surveys in high prevalence countries. Tuber Lung Dis 77 (Suppl): 1–20.
Rieder HL, 1995. Methodological issues in the estimation of the tuberculosis problem from tuberculin surveys. Tuber Lung Dis 76: 114–121.
Rockhill B, Newman B, Weinberg C, 1998. Use and misuse of population attributable fractions. Am J Public Health 88: 15–19.
Zhang J, Yu KF, 1998. What's the relative risk? A method of correcting the odds ratio in cohort studies of common outcomes. JAMA 280: 1690–1691.
Mori T, Leung CC, 2010. Tuberculosis in the global aging population. Infect Dis Clin North Am 24: 751–768.
Schaaf HS, Collins A, Bekker A, Davies PD, 2010. Tuberculosis at extremes of age. Respirology 15: 747–763.
Chan-Yeung M, Dai DL, Cheung AH, Chan FH, Kam KM, Tam CM, Leung CC, 2007. Tuberculin skin test reaction and body mass index in old age home residents in Hong Kong. J Am Geriatr Soc 55: 1592–1597.
Dolin PJ, Raviglione MC, Kochi A, 1994. Global tuberculosis incidence and mortality during 1990–2000. Bull World Health Organ 72: 213–220.
Cruz-Hervert LP, García-García L, Ferreyra-Reyes L, Bobadilla-Del-Valle M, Cano-Arellano B, Canizales-Quintero S, Ferreira-Guerrero E, Báez-Saldaña R, Téllez-Vazquez N, Nava-Mercado A, Juárez-Sandino L, Delgado-Sánchez G, Fuentes-Leyra CA, Montero-Campos R, Martínez-Gamboa RA, Small PM, Sifuentes-Osornio J, Ponce-de-León A, 2012. Tuberculosis in ageing: high rates, complex diagnosis and poor clinical outcomes. Age Ageing 41: 488–495.
Peruvian Ministry of Health, 2006. Estrategia Sanitaria Nacional de Inmunizaciones. Norma tecnica de Inmunizaciones. Lima, Peru: Direccion General de Salud de las Personas, 1–17.
World Health Organization, 2009. Global Health Observatory. Available at: http://www.who.int/gho/en/. Accessed June 18, 2012.
Menzies R, Vissandjee B, 1992. Effect of Bacille Calmette-Guérin vaccination on tuberculin reactivity. Am Rev Respir Dis 145: 621–625.
Burl S, Adetifa UJ, Cox M, Touray E, Whittle H, McShane H, Rowland-Jones SL, Flanagan KL, 2010. The tuberculin skin test (TST) is affected by recent BCG vaccination but not by exposure to non-tuberculosis mycobacteria (NTM) during early life. PLoS ONE 5: e12287.
Colditz GA, Brewer TF, Berkey CS, Wilson ME, Buradick E, Fineberg HV, Mosteller F, 1994. Efficacy of BCG vaccine in the prevention of tuberculosis. Meta-analysis of the published literature. JAMA 271: 698–702.
Menzies D, Pai M, Comstock G, 2007. Meta-analysis: new tests for the diagnosis of latent tuberculosis infection: areas of uncertainty and recommendations for research. Ann Intern Med 146: 340–354.
Pai M, Zwerling A, Menzies D, 2008. Systematic review: T-cell-based assays for the diagnosis of latent tuberculosis infection: an update. Ann Intern Med 149: 177–184.
Centers for Disease Control, 2010. Vital signs: state-specific obesity prevalence among adults—United States, 2009. MMWR Morb Mortal Wkly Rep 59: 951–955.
Trowbridge FL, Marks JS, Lopez de Romana G, Madrid S, Bouton TW, Klein PD, 1987. Body composition of Peruvian children with short stature and high weight-for-height. II. implications for the interpretation for weight-for-height as an indicator of nutritional status. Am J Clin Nutr 46: 411–418.
Madico G, Salazar G, McDonald J, Checkley W, Calderon M, Verastegui M, Gilman RH, 1996. Rates of tetanus protection and transplacental tetanus antibody transfer in pregnant women from different socioeconomic groups in Peru. Clin Diagn Lab Immunol 3: 753–755.
Villarino ME, Brennan MJ, Nolan CM, Catanzaro A, Lundergan LL, Bock NN, Jones CL, Wang YC, Burman WJ, 2000. Comparison testing of current (PPD-S1) and proposed (PPD-S2) reference tuberculin standards. Am J Respir Crit Care Med 161: 1167–1171.
Tat D, Polenakovik H, Herchline T, 2005. Comparing interferon-gamma release assay with tuberculin skin test readings at 48–72 hours and 144–168 hours with use of 2 commercial reagents. Clin Infect Dis 40: 246–250.
Mehta SR, MacGruder C, Looney D, Johns S, Smith DM, 2009. Differences in tuberculin reactivity as determined in a veterans administration employee health screening program. Clin Vaccine Immunol 16: 541–543.
Gillenwater KA, Sapp SC, Pearce K, Siberry GK, 2006. Increase in tuberculin skin test converters among health care workers after a change from Tubersol to Aplisol. Am J Infect Control 34: 651–654.
Past two years | Past Year | Past 30 Days | |
---|---|---|---|
Abstract Views | 27 | 27 | 14 |
Full Text Views | 395 | 123 | 1 |
PDF Downloads | 100 | 16 | 1 |
A cross-sectional, community-based study was performed in 2012 with 428 residents of periurban shantytowns in Lima, Peru to study risk factors for and changes in latent tuberculosis infection in age-stratified groups compared with our data from the same region in 1990 (N = 219) and 2005 (N = 103). Tuberculin skin test positivity in these communities was highly prevalent at 52% overall, increased with age (P < 0.01) and was similar to 2005 (53%) and 1990 (48%). From 1990 to 2012, the prevalence of tuberculin positivity decreased in 5–14 and 15–24 year old groups (to 17% and 34%, respectively, both P < 0.05). However, this may be explained by cessation of Bacille Calmette-Guérin revaccination during this period, because Bacille Calmette-Guérin revaccination doubled tuberculin positivity. Over the same 22-year period, tuberculin positivity in the ≥ 25 year old group remained high (71%, P = 0.3), suggesting that prevalent latent tuberculosis infection persists in the adult population despite improving medical care and socioeconomic development in this region.
Financial support: LM and GC were supported through the Tulane-Xavier Minority Health International Research Training (MHIRT) Program, funded by a training grant from the National Institutes of Health (T37 MD001424). CAE, TFP, and the 2005 study were supported by IFHAD: Innovation For Health And Development and The Wellcome Trust. This study was funded in part by the anonymous RG–ER fund and NIH RO1 HD059005.
Authors' addresses: Leonardo Martinez and Richard Oberhelman, Global Community Health and Behavioral Sciences, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, E-mails: lmartin7@tulane.edu and oberhel@tulane.edu. Alyssa Arman and Nathan Haveman, California State University, Fullerton, San Diego, CA, E-mails: lyssiejoy@gmail.com and n.eight.h@gmail.com. Ashley Lundgren, Weill Cornell Medical College, New York, NY, E-mail: ashley.diana@gmail.com. Lilia Cabrera, Asociación Benefica PRISMA, Lima, Peru, E-mail: lilia_deviaje@yahoo.com. Carlton A. Evans, Wellcome Trust Centre for Clinical Tropical Medicine, Department of Infectious Diseases and Immunity, Imperial College London Hammersmith Hospital Campus, London, UK, E-mail: carlton.evans@ifhad.org. Tom F. Pelly, IFHAD - Innovation For Health And Development, Universidad Peruana Cayetano Heredia LID#218, Lima, Peru, E-mail: tompelly@doctors.org.uk. Mayuko Saito, University of California, San Diego, San Diego, CA, E-mail: msaitop@gmail.com. David Callacondo, Molecular and Clinical Hematology Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, E-mail: david.callacondo@upch.pe. Gisela Collazo, Tulane University, New Orleans, LA, E-mail: gcollazo@tulane.edu. Andrés M. Carnero, Postgraduate School, Universidad Peruana Cayetano Heredia, Lima, Peru, E-mail: andrescarnero@gmail.com. Robert H. Gilman, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, E-mail: rgilman@jhsph.edu.
World Health Organization, 2012. Global Tuberculosis Report 2012. Available at: http://apps.who.int/iris/bitstream/10665/75938/1/9789241564502_eng.pdf. Accessed November 1, 2012.
Saito M, Bautista CT, Gilman RH, Bowering A, Levy MZ, Evans CA, 2004. The value of counting BCG scars for interpretation of tuberculin skin tests in a tuberculosis hyperendemic shantytown, Peru. Int J Tuberc Lung Dis 8: 842–847.
Millet JP, Moreno A, Fina L, Del Baño L, Orcau A, de Olalla PG, Caylà JA, 2012. Factors that influence current tuberculosis epidemiology [published online ahead of print 8 May 2012]. Eur Spine J. Available at: http://link.springer.com/article/10.1007%2Fs00586-012-2334-8. Accessed May 21, 2012.
World Health Organization, 2012. Tuberculosis. Available at: http://www.who.int/mediacentre/factsheets/fs104/en/index.html. Accessed July 1, 2012.
Suárez PG, Watt CJ, Alarcón E, Portocarrero J, Zavala D, Canales R, Luelmo F, Espinal MA, Dye C, 2001. The dynamics of tuberculosis in response to 10 years of intensive control effort in Peru. J Infect Dis 184: 473–478.
Sobero RA, Peabody JW, 2006. Tuberculosis control in Bolivia, Chile, Colombia and Peru: why does incidence vary so much between neighbors? Int J Tuberc Lung Dis 10: 1292–1295.
Santiago EM, Lawson E, Gillenwater K, Kalangi S, Lescano AG, Du Quella G, Cummings K, Cabrera L, Torres C, Gilman RH, 2003. A prospective study of Bacillus Calmette-Guérin scar formation and tuberculin skin test reactivity in infants in Lima, Peru. Pediatrics 112: e298.
Raharimanga V, Ratovoson R, Ratsitorahina M, Ramarokoto H, Rasolofo V, Talarmin A, Richard V, 2012. Tuberculin reactivity in first-year schoolchildren in Madagascar. Trop Med Int Health 17: 871–876.
Donald PR, 2000. Childhood tuberculosis. Curr Opin Pulm Med 6: 187–192.
Lockman S, Tappero JW, Kenyon TA, Rumisha D, Huebner RE, Binkin NJ, 1999. Tuberculin reactivity in a pediatric population with high BCG vaccination coverage. Int J Tuberc Lung Dis 3: 23–30.
Pelly TF, Santillan CF, Gilman RH, Cabrera LZ, Garcia E, Vidal C, Zimic MJ, Moore DA, Evans CA, 2005. Tuberculosis skin testing, anergy and protein malnutrition in Peru. Int J Tuberc Lung Dis 9: 977–984.
Madico G, Gilman RH, Checkley W, Cabrera L, Kohlstadt I, Kacena K, 1995. Community infection ratio as an indicator for tuberculosis control. Lancet 345: 416–419.
Getchell WS, Davis CE, Gilman J, Urueta G, Ruiz-Huidobro E, Gilman RH, 1992. Basic epidemiology of tuberculosis in Peru: a prevalence study of tuberculin sensitivity in a pueblo joven. Am J Trop Med Hyg 47: 721–729.
Sandhu G, Battaglia F, Ely BK, Athanasakis D, Montoya R, Valencia T, Gilman RH, Evans CA, Friedland JS, Fernandez-Reyes D, Agranoff DD, 2012. Discriminating active from latent tuberculosis in patients presenting to community clinics. PLoS ONE 7: e38080.
Loret de Mola C, Stanojevic S, Ruiz P, Gilman RH, Smeeth L, Miranda JJ, 2011. The effect of rural-to-urban migration on social capital and common mental disorders: PERU MIGRANT study. Soc Psychiatry Psychiatr Epidemiol 47: 967–973.
INEI, 2009. Las Migraciones Internas en el Peru: 1993–2007. Lima, Peru: Instituto Nacional de Estadística e Informática, 1–185.
World Health Organization, 2012. Global Database on Body Mass Index: An Interactive Surveillance Tool for Monitoring Nutrition Transition. Available at: http://apps.who.int/bmi/index.jsp. Accessed April 1, 2012.
Vidmar S, Carlin J, Hesketh K, Cole T, 2004. Standardizing anthropometric measures in children and adolescents with new functions for egen. Stata J 4: 50–55.
Bouros D, Maltezakis G, Tzanakis N, Tzortzaki E, Siafakas N, 1992. The role of inexperience in measuring tuberculin skin reaction (Mantoux test) by the pen or palpation technique. Respir Med 86: 219–223.
Caviedes L, Moore DA, 2007. Introducing MODS: a low-cost, low-tech tool for high-performance detection of tuberculosis and multidrug resistant tuberculosis. Indian J Med Microbiol 25: 87–88.
Oberhelman RA, Soto-Castellares G, Gilman RH, Caviedes L, Castillo ME, Kolevic L, Del Pino T, Saito M, Salazar-Lindo E, Negron E, Montenegro S, Laguna-Torres VA, Moore DA, Evans CA, 2010. Diagnostic approaches for pediatric tuberculosis by use of different specimen types, culture methods, and PCR: a prospective case-control study. Lancet Infect Dis 10: 612–620.
Moore DA, Evans CA, Gilman RH, Caviedes L, Coronel J, Vivar A, Sanchez E, Piñedo Y, Saravia JC, Salazar C, Oberhelman R, Hollm-Delgado MG, LaChira D, Escombe AR, Friedland JS, 2006. Microscopic-observation drug-susceptibility assay for the diagnosis of TB. N Engl J Med 355: 1539–1550.
Caviedes L, Lee TS, Gilman RH, Sheen P, Spellman E, Lee EH, Berg DE, Montengro-James S, 2000. Rapid, efficient detection and drug susceptibility testing of Mycobacterium tuberculosis in sputum by microscopic observation of broth cultures. The Tuberculosis Working Group in Peru. J Clin Microbiol 38: 1203–1208.
Centers for Disease Control, 2012. Tuberculosis. Available at: http://www.cdc.gov/tb/topic/basics/risk.htm. Accessed April 1, 2012.
Hosmer DW, Lemeshow S, 2000. Applied Logistic Regression. Second edition. New York: John Wiley & Sons, 143–200.
Arnadottir T, Rieder HL, Trebucq A, Waaler HT, 1996. Guidelines for conducting tuberculin skin test surveys in high prevalence countries. Tuber Lung Dis 77 (Suppl): 1–20.
Rieder HL, 1995. Methodological issues in the estimation of the tuberculosis problem from tuberculin surveys. Tuber Lung Dis 76: 114–121.
Rockhill B, Newman B, Weinberg C, 1998. Use and misuse of population attributable fractions. Am J Public Health 88: 15–19.
Zhang J, Yu KF, 1998. What's the relative risk? A method of correcting the odds ratio in cohort studies of common outcomes. JAMA 280: 1690–1691.
Mori T, Leung CC, 2010. Tuberculosis in the global aging population. Infect Dis Clin North Am 24: 751–768.
Schaaf HS, Collins A, Bekker A, Davies PD, 2010. Tuberculosis at extremes of age. Respirology 15: 747–763.
Chan-Yeung M, Dai DL, Cheung AH, Chan FH, Kam KM, Tam CM, Leung CC, 2007. Tuberculin skin test reaction and body mass index in old age home residents in Hong Kong. J Am Geriatr Soc 55: 1592–1597.
Dolin PJ, Raviglione MC, Kochi A, 1994. Global tuberculosis incidence and mortality during 1990–2000. Bull World Health Organ 72: 213–220.
Cruz-Hervert LP, García-García L, Ferreyra-Reyes L, Bobadilla-Del-Valle M, Cano-Arellano B, Canizales-Quintero S, Ferreira-Guerrero E, Báez-Saldaña R, Téllez-Vazquez N, Nava-Mercado A, Juárez-Sandino L, Delgado-Sánchez G, Fuentes-Leyra CA, Montero-Campos R, Martínez-Gamboa RA, Small PM, Sifuentes-Osornio J, Ponce-de-León A, 2012. Tuberculosis in ageing: high rates, complex diagnosis and poor clinical outcomes. Age Ageing 41: 488–495.
Peruvian Ministry of Health, 2006. Estrategia Sanitaria Nacional de Inmunizaciones. Norma tecnica de Inmunizaciones. Lima, Peru: Direccion General de Salud de las Personas, 1–17.
World Health Organization, 2009. Global Health Observatory. Available at: http://www.who.int/gho/en/. Accessed June 18, 2012.
Menzies R, Vissandjee B, 1992. Effect of Bacille Calmette-Guérin vaccination on tuberculin reactivity. Am Rev Respir Dis 145: 621–625.
Burl S, Adetifa UJ, Cox M, Touray E, Whittle H, McShane H, Rowland-Jones SL, Flanagan KL, 2010. The tuberculin skin test (TST) is affected by recent BCG vaccination but not by exposure to non-tuberculosis mycobacteria (NTM) during early life. PLoS ONE 5: e12287.
Colditz GA, Brewer TF, Berkey CS, Wilson ME, Buradick E, Fineberg HV, Mosteller F, 1994. Efficacy of BCG vaccine in the prevention of tuberculosis. Meta-analysis of the published literature. JAMA 271: 698–702.
Menzies D, Pai M, Comstock G, 2007. Meta-analysis: new tests for the diagnosis of latent tuberculosis infection: areas of uncertainty and recommendations for research. Ann Intern Med 146: 340–354.
Pai M, Zwerling A, Menzies D, 2008. Systematic review: T-cell-based assays for the diagnosis of latent tuberculosis infection: an update. Ann Intern Med 149: 177–184.
Centers for Disease Control, 2010. Vital signs: state-specific obesity prevalence among adults—United States, 2009. MMWR Morb Mortal Wkly Rep 59: 951–955.
Trowbridge FL, Marks JS, Lopez de Romana G, Madrid S, Bouton TW, Klein PD, 1987. Body composition of Peruvian children with short stature and high weight-for-height. II. implications for the interpretation for weight-for-height as an indicator of nutritional status. Am J Clin Nutr 46: 411–418.
Madico G, Salazar G, McDonald J, Checkley W, Calderon M, Verastegui M, Gilman RH, 1996. Rates of tetanus protection and transplacental tetanus antibody transfer in pregnant women from different socioeconomic groups in Peru. Clin Diagn Lab Immunol 3: 753–755.
Villarino ME, Brennan MJ, Nolan CM, Catanzaro A, Lundergan LL, Bock NN, Jones CL, Wang YC, Burman WJ, 2000. Comparison testing of current (PPD-S1) and proposed (PPD-S2) reference tuberculin standards. Am J Respir Crit Care Med 161: 1167–1171.
Tat D, Polenakovik H, Herchline T, 2005. Comparing interferon-gamma release assay with tuberculin skin test readings at 48–72 hours and 144–168 hours with use of 2 commercial reagents. Clin Infect Dis 40: 246–250.
Mehta SR, MacGruder C, Looney D, Johns S, Smith DM, 2009. Differences in tuberculin reactivity as determined in a veterans administration employee health screening program. Clin Vaccine Immunol 16: 541–543.
Gillenwater KA, Sapp SC, Pearce K, Siberry GK, 2006. Increase in tuberculin skin test converters among health care workers after a change from Tubersol to Aplisol. Am J Infect Control 34: 651–654.
Past two years | Past Year | Past 30 Days | |
---|---|---|---|
Abstract Views | 27 | 27 | 14 |
Full Text Views | 395 | 123 | 1 |
PDF Downloads | 100 | 16 | 1 |