David Cohn, MD
Professor, Medicine-Infectious Disease

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Medical School:
  • MD, University of Illinois College of Medicine (1975)
Undergraduate School:
  • BA, University of Michigan (MI) (1971)
  • University of Wisconsin Hospital and Clinics Program (1976)
  • University of Wisconsin Hospital and Clinics Program, Internal Medicine (1978)
  • University of Colorado (University Hospital) Program, Infectious Disease (1981)
Languages: English
Department: Medicine-Infectious Disease

Professional Titles

  • Attending physician, Denver Pubic Health

Recognition & Awards

  • Senior Level Peer Recognition Award, American Thoracic Society, Pulmonary Infections-Tuberculosis Scientific Assembly (2020)
  • Leading Physicians of the World, Leading Physicians of the World (2016)
  • Patent Safety and Quality Pillar Award, High Risk Infection Team (Ebola preparedness plan), Denver Health (2015)
  • Outstanding Volunteer Award,, Denver Health Medical Staff (2015)


  • Professor (1996)
    School of Medicine, Medicine


  • Sterling TR, Njie G, Zenner D, Cohn DL, Reves R, Ahmed A, Menzies D, Horsburgh CR Jr, Crane CM, Burgos M, LoBue P, Winston CA, Belknap R. Guidelines for the Treatment of Latent Tuberculosis Infection: Recommendations from the National Tuberculosis Controllers Association and CDC, 2020. MMWR Recomm Rep. 2020 Feb 14;69(1):1-11. PubMed PMID: 32053584
  • Lewinsohn DM, Leonard MK, LoBue PA, Cohn DL, Daley CL, Desmond E, Keane J, Lewinsohn DA, Loeffler AM, Mazurek GH, O'Brien RJ, Pai M, Richeldi L, Salfinger M, Shinnick TM, Sterling TR, Warshauer DM, Woods GL. Official American Thoracic Society/Infectious Diseases Society of America/Centers for Disease Control and Prevention Clinical Practice Guidelines: Diagnosis of Tuberculosis in Adults and Children. Clin Infect Dis. 2017 Jan 15;64(2):e1-e33. PubMed PMID: 27932390
  • Gray JM, Cohn DL. Tuberculosis and HIV coinfection. Semin Respir Crit Care Med. 2013 Feb;34(1):32-43. PubMed PMID: 23460004
  • Kestler MH, Gardner EM, Cohn DL. Hepatic non-Hodgkin's lymphoma with lactic acidosis in HIV-infected patients: report of 2 cases. J Int Assoc Physicians AIDS Care (Chic). 2010 Sep-Oct;9(5):301-5. PubMed PMID: 20739590
  • Wilkin T, Lee JY, Lensing SY, Stier EA, Goldstone SE, Berry JM, Jay N, Aboulafia D, Cohn DL, Einstein MH, Saah A, Mitsuyasu RT, Palefsky JM. Safety and immunogenicity of the quadrivalent human papillomavirus vaccine in HIV-1-infected men. J Infect Dis. 2010 Oct 15;202(8):1246-53. PubMed PMID: 20812850
  • Dworkin MS, Buskin SE, Davidson AJ, Cohn DL, Morse A, Inungu J, Adams MR, McCombs SB, Jones JL, Moura H, Visvesvara G, Pieniazek NJ, Navin TR. Prevalence of intestinal microsporidiosis in human immunodeficiency virus-infected patients with diarrhea in major United States cities. Rev Inst Med Trop Sao Paulo. 2007 Nov-Dec;49(6):339-42. PubMed PMID: 18157397
  • Saukkonen JJ, Cohn DL, Jasmer RM, Schenker S, Jereb JA, Nolan CM, Peloquin CA, Gordin FM, Nunes D, Strader DB, Bernardo J, Venkataramanan R, Sterling TR. An official ATS statement: hepatotoxicity of antituberculosis therapy. Am J Respir Crit Care Med. 2006 Oct 15;174(8):935-52. PubMed PMID: 17021358
  • Jenkins TC, Gardner EM, Thrun MW, Cohn DL, Burman WJ. Risk-based human immunodeficiency virus (HIV) testing fails to detect the majority of HIV-infected persons in medical care Settings. Sex Transm Dis. 2006 May;33(5):329-33. PubMed PMID: 16547450
  • Okwera A, Johnson JL, Luzze H, Nsubuga P, Kayanja H, Cohn DL, Nunn P, Ellner JJ, Whalen CC, Mugerwa RD. Comparison of intermittent ethambutol with rifampicin-based regimens in HIV-infected adults with PTB, Kampala. Int J Tuberc Lung Dis. 2006 Jan;10(1):39-44. PubMed PMID: 16466035
  • Cohn DL. Subclinical tuberculosis in HIV-infected patients: another challenge for the diagnosis of tuberculosis in high-burden countries?. Clin Infect Dis. 2005 May 15;40(10):1508-10. PubMed PMID: 15844074
  • Dworkin MS, Adams MR, Cohn DL, Davidson AJ, Buskin S, Horwitch C, Morse A, Sackoff J, Thompson M, Wotring L, McCombs SB, Jones JL. Factors that complicate the treatment of tuberculosis in HIV-infected patients. J Acquir Immune Defic Syndr. 2005 Aug 1;39(4):464-70. PubMed PMID: 16010171
  • Gordin FM, Cohn DL, Matts JP, Chaisson RE, O'Brien RJ. Hepatotoxicity of rifampin and pyrazinamide in the treatment of latent tuberculosis infection in HIV-infected persons: is it different than in HIV-uninfected persons?. Clin Infect Dis. 2004 Aug 15;39(4):561-5. PubMed PMID: 15356822
  • Kaplan JE, Hanson DL, Cohn DL, Karon J, Buskin S, Thompson M, Fleming P, Dworkin MS. When to begin highly active antiretroviral therapy? Evidence supporting initiation of therapy at CD4+ lymphocyte counts <350 cells/microL. Clin Infect Dis. 2003 Oct 1;37(7):951-8. PubMed PMID: 13130408
  • Flaks RC, Burman WJ, Gourley PJ, Rietmeijer CA, Cohn DL. HIV transmission risk behavior and its relation to antiretroviral treatment adherence. Sex Transm Dis. 2003 May;30(5):399-404. PubMed PMID: 12916130
  • Castro KG, Jereb JA, Koppaka VR, Cohn DL. Fatal liver injury associated with rifampin-pyrazinamide treatment of latent tuberculosis infection. Chest. 2003 Mar;123(3):967. PubMed PMID: 12628913
  • Bonds LA, Gaido L, Woods JE, Cohn DL, Wilson ML. Infectious diseases detected at autopsy at an urban public hospital, 1996-2001. Am J Clin Pathol. 2003 Jun;119(6):866-72. PubMed PMID: 12817435
  • Cohn DL. Treatment of latent tuberculosis infection. Semin Respir Infect. 2003 Dec;18(4):249-62. PubMed PMID: 14679474
  • Fisher EJ, Chaloner K, Cohn DL, Grant LB, Alston B, Brosgart CL, Schmetter B, El-Sadr WM, Sampson J. The safety and efficacy of adefovir dipivoxil in patients with advanced HIV disease: a randomized, placebo-controlled trial. AIDS. 2001 Sep 7;15(13):1695-700. PubMed PMID: 11546945
  • Cohn DL. The effect of BCG vaccination on tuberculin skin testing. Does it matter?. Am J Respir Crit Care Med. 2001 Sep 15;164(6):915-6. PubMed PMID: 11587970
  • Hafner R, Bethel J, Standiford HC, Follansbee S, Cohn DL, Polk RE, Mole L, Raasch R, Kumar P, Mushatt D, Drusano G. Tolerance and pharmacokinetic interactions of rifabutin and azithromycin. Antimicrob Agents Chemother. 2001 May;45(5):1572-7. PubMed PMID: 11302832
  • Burman WJ, Reves RR, Cohn DL, Schooley RT. Breaking the camel's back: multicenter clinical trials and local institutional review boards. Ann Intern Med. 2001 Jan 16;134(2):152-7. PubMed PMID: 11177319
  • El-Sadr WM, Perlman DC, Denning E, Matts JP, Cohn DL. A review of efficacy studies of 6-month short-course therapy for tuberculosis among patients infected with human immunodeficiency virus: differences in study outcomes. Clin Infect Dis. 2001 Feb 15;32(4):623-32. PubMed PMID: 11181127
  • O'Brien RJ, Cohn DL. Family practice and the elimination of tuberculosis. Am Fam Physician. 2000 May 1;61(9):2629-30, 2632. PubMed PMID: 10821148
  • Cohn DL. Treatment of latent tuberculosis infection: renewed opportunity for tuberculosis control. Clin Infect Dis. 2000 Jul;31(1):120-4. PubMed PMID: 10913407
  • Kleinschmidt-DeMasters BK, Mazowiecki M, Bonds LA, Cohn DL, Wilson ML. Coccidioidomycosis meningitis with massive dural and cerebral venous thrombosis and tissue arthroconidia. Arch Pathol Lab Med. 2000 Feb;124(2):310-4. PubMed PMID: 10656747
  • Benson CA, Williams PL, Cohn DL, Becker S, Hojczyk P, Nevin T, Korvick JA, Heifets L, Child CC, Lederman MM, Reichman RC, Powderly WG, Notario GF, Wynne BA, Hafner R. Clarithromycin or rifabutin alone or in combination for primary prophylaxis of Mycobacterium avium complex disease in patients with AIDS: A randomized, double-blind, placebo-controlled trial. The AIDS Clinical Trials Group 196/Terry Beirn Community Programs for Clinical Research on AIDS 009 Protocol Team. J Infect Dis. 2000 Apr;181(4):1289-97. PubMed PMID: 10762562
  • Gordin FM, Sullam PM, Shafran SD, Cohn DL, Wynne B, Paxton L, Perry K, Horsburgh CR Jr. A randomized, placebo-controlled study of rifabutin added to a regimen of clarithromycin and ethambutol for treatment of disseminated infection with Mycobacterium avium complex. Clin Infect Dis. 1999 May;28(5):1080-5. PubMed PMID: 10452638
  • Cohn DL, Fisher EJ, Peng GT, Hodges JS, Chesnut J, Child CC, Franchino B, Gibert CL, El-Sadr W, Hafner R, Korvick J, Ropka M, Heifets L, Clotfelter J, Munroe D, Horsburgh CR Jr. A prospective randomized trial of four three-drug regimens in the treatment of disseminated Mycobacterium avium complex disease in AIDS patients: excess mortality associated with high-dose clarithromycin. Terry Beirn Community Programs for Clinical Research on AIDS. Clin Infect Dis. 1999 Jul;29(1):125-33. PubMed PMID: 10433575
  • Shlay JC, Chaloner K, Max MB, Flaws B, Reichelderfer P, Wentworth D, Hillman S, Brizz B, Cohn DL. Acupuncture and amitriptyline for pain due to HIV-related peripheral neuropathy: a randomized controlled trial. Terry Beirn Community Programs for Clinical Research on AIDS. JAMA. 1998 Nov 11;280(18):1590-5. PubMed PMID: 9820261
  • Clark TM, Burman WJ, Cohn DL, Mehler PS. Septic shock from Mycobacterium tuberculosis after therapy for Pneumocystis carinii. Arch Intern Med. 1998 May 11;158(9):1033-5. PubMed PMID: 9588437
  • el-Sadr WM, Perlman DC, Matts JP, Nelson ET, Cohn DL, Salomon N, Olibrice M, Medard F, Chirgwin KD, Mildvan D, Jones BE, Telzak EE, Klein O, Heifets L, Hafner R. Evaluation of an intensive intermittent-induction regimen and duration of short-course treatment for human immunodeficiency virus-related pulmonary tuberculosis. Terry Beirn Community Programs for Clinical Research on AIDS (CPCRA) and the AIDS Clinical Trials Group (ACTG). Clin Infect Dis. 1998 May;26(5):1148-58. PubMed PMID: 9597244
  • Pablos-Méndez A, Raviglione MC, Laszlo A, Binkin N, Rieder HL, Bustreo F, Cohn DL, Lambregts-van Weezenbeek CS, Kim SJ, Chaulet P, Nunn P. Global surveillance for antituberculosis-drug resistance, 1994-1997. World Health Organization-International Union against Tuberculosis and Lung Disease Working Group on Anti-Tuberculosis Drug Resistance Surveillance. N Engl J Med. 1998 Jun 4;338(23):1641-9. PubMed PMID: 9614254
  • Burman WJ, Stone BL, Rietmeijer CA, Maslow J, Cohn DL, Reves RR. Long-term outcomes of treatment of Mycobacterium avium complex bacteremia using a clarithromycin-containing regimen. AIDS. 1998 Jul 30;12(11):1309-15. PubMed PMID: 9708410
  • Burman WJ, Reves RR, Cohn DL. The case for conservative management of early HIV disease. JAMA. 1998 Jul 1;280(1):93-5. PubMed PMID: 9660372
  • Cohn DL, O'Brien RJ. The use of restriction fragment length polymorphism (RFLP) analysis for epidemiological studies of tuberculosis in developing countries. Int J Tuberc Lung Dis. 1998 Jan;2(1):16-26. PubMed PMID: 9562107
  • Davidson AJ, Bertram SL, Lezotte DC, Marine WM, Rietmeijer CA, Hagglund BB, Cohn DL. Comparison of health status, socioeconomic characteristics, and knowledge and use of HIV-related resources between HIV-infected women and men. Med Care. 1998 Dec;36(12):1676-84. PubMed PMID: 9860056
  • Rietmeijer CA, Wolitski RJ, Fishbein M, Corby NH, Cohn DL. Sex hustling, injection drug use, and non-gay identification by men who have sex with men. Associations with high-risk sexual behaviors and condom use. Sex Transm Dis. 1998 Aug;25(7):353-60. PubMed PMID: 9713915
  • Sudre P, Cohn DL. Mycobacterium tuberculosis drug resistance: a call to action. Int J Tuberc Lung Dis. 1998 Aug;2(8):609-11. PubMed PMID: 9712272
  • Gardner LI, Harrison SH, Hendrix CW, Blatt SP, Wagner KF, Chung RC, Harris RW, Cohn DL, Burke DS, Mayers DL. Size and duration of zidovudine benefit in 1003 HIV-infected patients: U.S. Army, Navy, and Air Force natural history data. Military Medical Consortium for Applied Retroviral Research. J Acquir Immune Defic Syndr Hum Retrovirol. 1998 Apr 1;17(4):345-53. PubMed PMID: 9525436
  • Horsburgh CR Jr, Schoenfelder JR, Gordin FM, Cohn DL, Sullam PM, Wynne BA. Geographic and seasonal variation in Mycobacterium avium bacteremia among North American patients with AIDS. Am J Med Sci. 1997 Jun;313(6):341-5. PubMed PMID: 9186148
  • Burman WJ, Dalton CB, Cohn DL, Butler JR, Reves RR. A cost-effectiveness analysis of directly observed therapy vs self-administered therapy for treatment of tuberculosis. Chest. 1997 Jul;112(1):63-70. PubMed PMID: 9228359
  • Burman WJ, Cohn DL, Rietmeijer CA, Judson FN, Sbarbaro JA, Reves RR. Short-term incarceration for the management of noncompliance with tuberculosis treatment. Chest. 1997 Jul;112(1):57-62. PubMed PMID: 9228358
  • Burman WJ, Cohn DL, Rietmeijer CA, Judson FN, Sbarbaro JA, Reves RR. Noncompliance with directly observed therapy for tuberculosis. Epidemiology and effect on the outcome of treatment. Chest. 1997 May;111(5):1168-73. PubMed PMID: 9149565
  • Cohn DL. Use of the bacille Calmette-Guérin vaccination for the prevention of tuberculosis: renewed interest in an old vaccine. Am J Med Sci. 1997 Jun;313(6):372-6. PubMed PMID: 9186153
  • Gordin FM, Cohn DL, Sullam PM, Schoenfelder JR, Wynne BA, Horsburgh CR Jr. Early manifestations of disseminated Mycobacterium avium complex disease: a prospective evaluation. J Infect Dis. 1997 Jul;176(1):126-32. PubMed PMID: 9207358
  • Cohn DL, Bustreo F, Raviglione MC. Drug-resistant tuberculosis: review of the worldwide situation and the WHO/IUATLD Global Surveillance Project. International Union Against Tuberculosis and Lung Disease. Clin Infect Dis. 1997 Jan;24 Suppl 1:S121-30. PubMed PMID: 8994791
  • Burman WJ, Reves RR, Rietmeijer CA, Cohn DL. A retrospective comparison of clarithromycin versus rifampin in combination treatment for disseminated Mycobacterium avium complex disease in AIDS: clarithromycin decreases transfusion requirements. Int J Tuberc Lung Dis. 1997 Apr;1(2):163-9. PubMed PMID: 9441082
  • Cohn DL. Prevention strategies for Mycobacterium avium-intracellulare complex (MAC) infection. A review of recent studies in patients with AIDS. Drugs. 1997;54 Suppl 2:8-15; discussion 28-9. PubMed PMID: 9358195
  • Gordin FM, Nelson ET, Matts JP, Cohn DL, Ernst J, Benator D, Besch CL, Crane LR, Sampson JH, Bragg PS, El-Sadr W. The impact of human immunodeficiency virus infection on drug-resistant tuberculosis. Am J Respir Crit Care Med. 1996 Nov;154(5):1478-83. PubMed PMID: 8912768
  • Rietmeijer CA, Kane MS, Simons PZ, Corby NH, Wolitski RJ, Higgins DL, Judson FN, Cohn DL. Increasing the use of bleach and condoms among injecting drug users in Denver: outcomes of a targeted, community-level HIV prevention program. AIDS. 1996 Mar;10(3):291-8. PubMed PMID: 8882669
  • Shlay JC, Blackburn D, O'Keefe K, Raevsky C, Evans M, Cohn DL. Human immunodeficiency virus seroprevalence and risk assessment of a homeless population in Denver. Sex Transm Dis. 1996 Jul-Aug;23(4):304-11. PubMed PMID: 8836025
  • Simons PZ, Rietmeijer CA, Kane MS, Guenther-Grey C, Higgins DL, Cohn DL. Building a peer network for a community level HIV prevention program among injecting drug users in Denver. Public Health Rep. 1996;111 Suppl 1:50-3. PubMed PMID: 8862157
  • Bessesen MT, Miller LA, Cohn DL, Bartlett S, Ellison RT 3rd. Administration of pyrimethamine/sulfadoxine for prevention of Pneumocystis carinii pneumonia in patients with AIDS. Clin Infect Dis. 1995 Mar;20(3):730-1. PubMed PMID: 7756514
  • Burman WJ, Cohn DL, Reves RR, Wilson ML. Multifocal cellulitis and monoarticular arthritis as manifestations of Helicobacter cinaedi bacteremia. Clin Infect Dis. 1995 Mar;20(3):564-70. PubMed PMID: 7756476
  • Cohn DL. Treatment of multidrug-resistant tuberculosis. J Hosp Infect. 1995 Jun;30 Suppl:322-8. PubMed PMID: 7560968
  • Von Roenn JH, Armstrong D, Kotler DP, Cohn DL, Klimas NG, Tchekmedyian NS, Cone L, Brennan PJ, Weitzman SA. Megestrol acetate in patients with AIDS-related cachexia. Ann Intern Med. 1994 Sep 15;121(6):393-9. PubMed PMID: 7794302
  • Stone BL, Cohn DL, Kane MS, Hildred MV, Wilson ML, Reves RR. Utility of paired blood cultures and smears in diagnosis of disseminated Mycobacterium avium complex infections in AIDS patients. J Clin Microbiol. 1994 Mar;32(3):841-2. PubMed PMID: 8195404
  • Cohn DL. Treatment and prevention of tuberculosis in HIV-infected persons. Infect Dis Clin North Am. 1994 Jun;8(2):399-412. PubMed PMID: 8089467
  • Nightingale SD, Cameron DW, Gordin FM, Sullam PM, Cohn DL, Chaisson RE, Eron LJ, Sparti PD, Bihari B, Kaufman DL. Two controlled trials of rifabutin prophylaxis against Mycobacterium avium complex infection in AIDS. N Engl J Med. 1993 Sep 16;329(12):828-33. PubMed PMID: 8179648
  • Bessesen MT, Shlay J, Stone-Venohr B, Cohn DL, Reves RR. Disseminated Mycobacterium genavense infection: clinical and microbiological features and response to therapy. AIDS. 1993 Oct;7(10):1357-61. PubMed PMID: 8267909
  • Blum RN, Polish LB, Tapy JM, Catlin BJ, Cohn DL. Results of screening for tuberculosis in foreign-born persons applying for adjustment of immigration status. Chest. 1993 Jun;103(6):1670-4. PubMed PMID: 8404083
  • Rietmeijer CA, Davidson AJ, Foster CT, Cohn DL. Cost of care for patients with human immunodeficiency virus infection. Patterns of utilization and charges in a public health care system. Arch Intern Med. 1993 Jan 25;153(2):219-25. PubMed PMID: 8422209
  • Iseman MD, Cohn DL, Sbarbaro JA. Directly observed treatment of tuberculosis. We can't afford not to try it. N Engl J Med. 1993 Feb 25;328(8):576-8. PubMed PMID: 8426627
  • Cohn DL, Dobkin JF. Treatment and prevention of tuberculosis in HIV infection. AIDS. 1993;7 Suppl 1:S195-202. PubMed PMID: 8363785
  • Cohn DL, Iseman MD. Treatment and prevention of multidrug-resistant tuberculosis. Res Microbiol. 1993 Feb;144(2):150-3. PubMed PMID: 8337473
  • Crowle AJ, Ross ER, Cohn DL, Gilden J, May MH. Comparison of the abilities of Mycobacterium avium and Mycobacterium intracellulare to infect and multiply in cultured human macrophages from normal and human immunodeficiency virus-infected subjects. Infect Immun. 1992 Sep;60(9):3697-703. PubMed PMID: 1500179
  • Cohn DL, Miller LA, Yamaguchi KJ, Douglas JM. Denver's increase in HIV counseling after Magic Johnson's HIV disclosure. Am J Public Health. 1992 Dec;82(12):1692. PubMed PMID: 1456353
  • Schnell DJ, Higgins DL, Wilson RM, Goldbaum G, Cohn DL, Wolitski RJ. Men's disclosure of HIV test results to male primary sex partners. Am J Public Health. 1992 Dec;82(12):1675-6. PubMed PMID: 1456347
  • Farizo KM, Buehler JW, Chamberland ME, Whyte BM, Froelicher ES, Hopkins SG, Reed CM, Mokotoff ED, Cohn DL, Troxler S. Spectrum of disease in persons with human immunodeficiency virus infection in the United States. JAMA. 1992 Apr 1;267(13):1798-805. PubMed PMID: 1347573
  • Blum RN, Miller LA, Gaggini LC, Cohn DL. Comparative trial of dapsone versus trimethoprim/sulfamethoxazole for primary prophylaxis of Pneumocystis carinii pneumonia. J Acquir Immune Defic Syndr (1988). 1992;5(4):341-7. PubMed PMID: 1548570
  • Cohn DL. Bacterial pneumonia in the HIV-infected patient. Infect Dis Clin North Am. 1991 Sep;5(3):485-507. PubMed PMID: 1955696
  • McClellan MD, Miller SB, Parsons PE, Cohn DL. Pneumothorax with Pneumocystis carinii pneumonia in AIDS. Incidence and clinical characteristics. Chest. 1991 Nov;100(5):1224-8. PubMed PMID: 1935275
  • Lee BY, Chatterjee D, Bozic CM, Brennan PJ, Cohn DL, Bales JD, Harrison SM, Andron LA, Orme IM. Prevalence of serum antibody to the type-specific glycopeptidolipid antigens of Mycobacterium avium in human immunodeficiency virus-positive and -negative individuals. J Clin Microbiol. 1991 May;29(5):1026-9. PubMed PMID: 2056037
  • Payne TH, Cohn DL, Davidson AJ, Henry TD, Schaefer JW, Gabow PA. Marked elevations of serum alkaline phosphatase in patients with AIDS. J Acquir Immune Defic Syndr (1988). 1991;4(3):238-43. PubMed PMID: 1992101
  • Cohn DL, Catlin BJ, Peterson KL, Judson FN, Sbarbaro JA. A 62-dose, 6-month therapy for pulmonary and extrapulmonary tuberculosis. A twice-weekly, directly observed, and cost-effective regimen. Ann Intern Med. 1990 Mar 15;112(6):407-15. PubMed PMID: 2106816
  • O'Brien RF, Cohn DL. Serum angiotensin converting enzyme levels in AIDS. Chest. 1990 Apr;97(4):1021-2. PubMed PMID: 2157586
  • O'Brien RF, Cohn DL. Serosanguineous pleural effusions in AIDS-associated Kaposi's sarcoma. Chest. 1989 Sep;96(3):460-6. PubMed PMID: 2766805
  • Perez-Perez GI, Cohn DL, Guerrant RL, Patton CM, Reller LB, Blaser MJ. Clinical and immunologic significance of cholera-like toxin and cytotoxin production by Campylobacter species in patients with acute inflammatory diarrhea in the USA. J Infect Dis. 1989 Sep;160(3):460-8. PubMed PMID: 2760498
  • Tatum ET, Sun PC, Cohn DL. Cytomegalovirus vasculitis and colon perforation in a patient with the acquired immunodeficiency syndrome. Pathology. 1989 Oct;21(4):235-8. PubMed PMID: 2561192
  • Crowle AJ, Cohn DL, Poche P. Defects in sera from acquired immunodeficiency syndrome (AIDS) patients and from non-AIDS patients with Mycobacterium avium infection which decrease macrophage resistance to M. avium. Infect Immun. 1989 May;57(5):1445-51. PubMed PMID: 2496029
  • O'Brien RF, Quinn JL, Miyahara BT, Lepoff RB, Cohn DL. Diagnosis of Pneumocystis carinii pneumonia by induced sputum in a city with moderate incidence of AIDS. Chest. 1989 Jan;95(1):136-8. PubMed PMID: 2783305
  • Polish LB, Cohn DL, Ryder JW, Myers AM, O'Brien RF. Pulmonary non-Hodgkin's lymphoma in AIDS. Chest. 1989 Dec;96(6):1321-6. PubMed PMID: 2582839
  • Rietmeijer CA, Penley KA, Cohn DL, Davidson AJ, Horsburgh CR Jr, Judson FN. Factors influencing the risk of infection with human immunodeficiency virus in homosexual men, Denver 1982-1985. Sex Transm Dis. 1989 Apr-Jun;16(2):95-102. PubMed PMID: 2787059
  • Hoffman RE, Valway SE, Wolf FC, Raevsky C, Cohn DL, Penley KA, Vernon TM. Comparison of AIDS and HIV antibody surveillance data in Colorado. J Acquir Immune Defic Syndr (1988). 1989;2(2):194-200. PubMed PMID: 2703957
  • Cohn DL, Stover DE, O'Brien RF, Shelhamer JH, Raffin TA, Hopewell PC. Pulmonary complications of AIDS: advances in diagnosis and treatment. Am Rev Respir Dis. 1988 Oct;138(4):1051-2. PubMed PMID: 3059879
  • Janoff EN, Douglas JM Jr, Gabriel M, Blaser MJ, Davidson AJ, Cohn DL, Judson FN. Class-specific antibody response to pneumococcal capsular polysaccharides in men infected with human immunodeficiency virus type 1. J Infect Dis. 1988 Nov;158(5):983-90. PubMed PMID: 3183430
  • Ward JW, Holmberg SD, Allen JR, Cohn DL, Critchley SE, Kleinman SH, Lenes BA, Ravenholt O, Davis JR, Quinn MG. Transmission of human immunodeficiency virus (HIV) by blood transfusions screened as negative for HIV antibody. N Engl J Med. 1988 Feb 25;318(8):473-8. PubMed PMID: 3422337
  • Rietmeijer CA, Cohn DL. Severe allergic contact dermatitis from dinitrochlorobenzene in a patient with human immunodeficiency virus infection. Arch Dermatol. 1988 Apr;124(4):490-1. PubMed PMID: 3355191
  • Perlman DM, Ampel NM, Schifman RB, Cohn DL, Patton CM, Aguirre ML, Wang WL, Blaser MJ. Persistent Campylobacter jejuni infections in patients infected with the human immunodeficiency virus (HIV). Ann Intern Med. 1988 Apr;108(4):540-6. PubMed PMID: 3348562
  • Rector WG Jr, Govindarajan S, Horsburgh CR Jr, Penley KA, Cohn DL, Judson FN. Hepatic inflammation, hepatitis B replication, and cellular immune function in homosexual males with chronic hepatitis B and antibody to human immunodeficiency virus. Am J Gastroenterol. 1988 Mar;83(3):262-6. PubMed PMID: 3344728
  • Wolinsky E, Horsburgh CR, Cohn DL, Roberts RB, Masur H, Miller R, Tsang AY, Iseman MD. Mycobacterium avium-M. intracellulare and Acquired Immunodeficiency Syndrome. Antimicrob Agents Chemother. 1987 Jun;31(6):969. PubMed PMID: 16557676
  • Borek E, Sharma OK, Buschman FL, Cohn DL, Penley KA, Judson FN, Dobozin BS, Horsburgh CR Jr, Kirkpatrick CH. Altered excretion of modified nucleosides and beta-aminoisobutyric acid in subjects with acquired immunodeficiency syndrome or at risk for acquired immunodeficiency syndrome. Cancer Res. 1986 May;46(5):2557-61. PubMed PMID: 3008993
  • Blaser MJ, Cohn DL, Cody HJ, Penley KA, Judson FN, Saxinger WC, Weiss SH. Counterimmunoelectrophoresis for detection of human serum antibody to HTLV-III. J Immunol Methods. 1986 Jul 24;91(2):181-6. PubMed PMID: 3016097
  • Horsburgh CR Jr, Cohn DL, Roberts RB, Masur H, Miller RA, Tsang AY, Iseman MD. Mycobacterium avium-M. intracellulare isolates from patients with or without acquired immunodeficiency syndrome. Antimicrob Agents Chemother. 1986 Dec;30(6):955-7. PubMed PMID: 3813519
  • Horsburgh CR Jr, Cohn DL. Mycobacterium avium complex and the acquired immunodeficiency syndrome. Ann Intern Med. 1986 Dec;105(6):968-9. PubMed PMID: 3777722
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Professional Memberships

  • Infectious Diseases Society of America, Fellow
  • American Thoracic Society, Fellow
  • International AIDS Society, Member
  • Colorado Chapter, IDSA, Member
  • American College of Physicians, Fellow

Practice Locations

Denver Health
777 Bannock St
Denver, CO 80204

Hospital Affiliation
  • Denver Health Medical Center

Specialty Information

  • Infectious Disease, Board Certification (1982)
Clinical Interests
HIV/AIDS, Mycobacterial infections (TB & NTM), STDs, International Health

Personal Interests
Downhill skiing. jogging, hiking, photography, traveling

Public Speaking
HIV/AIDS Tuberculosis Ebola Virus Disease

General Information

Medical Schools:
  • MD, University of Illinois College of Medicine (1975)
Undergraduate Schools:
  • BA, University of Michigan (MI) (1971)
  • University of Wisconsin Hospital and Clinics Program (1976)
Residency Programs:
  • University of Wisconsin Hospital and Clinics Program, Internal Medicine (1978)
  • University of Colorado (University Hospital) Program, Infectious Disease (1981)
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Languages: English
Department: Medicine-Infectious Disease
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Campus Box C290
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