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Gregory Gray

Professor, Medicine, Environmental Health and Global Health

(919) 684-1032

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Greg Gray


Gregory C. Gray MD, MPH, FIDSA is a Professor at Duke University with 3 affiliations: the Division of Infectious Diseases in Duke University's School of Medicine, Duke Global Health Institute, and Duke Nicholas School of the Environment. He also serves part-time as a Professor in the Program in Emerging Infectious Diseases at Duke-NUS Medical School, Singapore and as a Professor of Global Health at Duke Kunshan University in China. He has visiting professorship positions in six other academic institutions in China, Romania, Australia, and the USA. His medical boards are in Preventive Medicine and Public Health. Dr. Gray has conducted diverse epidemiological studies of infectious diseases for 25 years in 5 continents. Much of his work has involved identifying risk factors for occupational diseases, particularly for infectious diseases. He has studied numerous occupational groups including farmers, animal breeders, veterinarians, military personnel, turkey workers, poultry workers, horse workers, hunters, and pig workers. A strong supporter for the One Health approach, he has won multiple One Health research and training grants, established two centers of One Health (USA & Romania) and developed 4 graduate programs in One Health (PhD, MHS, Certificate and Program). He has mentored more than 50 graduate students, postdocs, and international scholars in research and often guides their work to peer-reviewed publication. He has served on numerous national expert advisory committees including those associated with the US Armed Forces Epidemiological Board, the Infectious Disease Society of America, and the Institute of Medicine. He has authored more than 260 scientific reports and book chapters in the peer-reviewed medical literature. Currently, he serves on the Editorial Board for the journals Influenza and Other Respiratory Viruses and Tropical Diseases,Travel Medicine and Vaccines.


Recent Publications

Vegosen L, Breysse PN, Agnew J, Gray GC, Nachamkin I, Sheikh K, Kamel F, Silbergeld E. Occupational Exposure to Swine, Poultry, and Cattle and Antibody Biomarkers of Campylobacter jejuni Exposure and Autoimmune Peripheral Neuropathy. PLOS One 2015;in press.

XX, Cheng W, Ya HW, Li XL, Yi HM, X WD, Jian JF, Gray GC, Fan LQ, Chen EF, Cao WC. Nosocomial Transmission of Avian Influenza A (H7N9) Virus in China: An Epidemiological Investigation. BMJ. 2015 Nov 19;351:h5765. doi: 10.1136/bmj.h5765.

Gray GC, Anderson BD, LaBeaud D, Heraud JM, Fevre EM, Andriamandimby SF, Cook EA, Dahir S, deGlanville WA, Heil GL, Khan SU, Muiruri S, Olive MM, Thomas LF, Merrill HR, Merrill MM, Richt JA. Seroepidemiological study of Interepidemic Rift Valley fever virus infection among persons with intense ruminant exposure, Madagascar and Kenya. Amer J Trop Med Hyg; 2015 Oct 12. pii: 15-0383. [Epub ahead of print]

Fang LQ, Liu K; Li XL, Liang S, Yang Y, Yao HW, Sun RX, Sun Y, Chen WJ, Zuo SQ, Ma MJ, Li H, Jiang JF, Liu W, Yang XF, Gray GC, Krause PJ. Emerging tick-borne infections in mainland China: an increasing public health threat Lancet ID 2015 Published online October 7, 2015

Su S, Bi Y, Bi Y, Wong G, Gray GC, Gao GF, Li S. The epidemiology, evolution and recent outbreaks of avian influenza virus in China: A Review. J Virology 2015; 89:8671-76.

Khuntirat B, Love CS, Buddari D, Heil GL, Gibbons RV, Rothman AL, Gray GC, Yoon, IK. Absence of neutralizing antibodies against influenza A/H5N1 virus among children in Kamphaeng Phet, Thailand. J Clin Virology 2015;69:78-80.

Ma Mengmeng, Anderson BD, Wang Tao, Chen Yingan, Zhang Dingmei, Gray GC, Lu Jiahai. Serological Evidence and Risk Factors for Swine Influenza Infections among Chinese Swine Workers. PLOS One. May 27;10(5):e0128479. doi: 10.1371/journal.pone.0128479. eCollection 2015.

Wang A. Gray GC, Lu J. One Health: An Effective Approach to Food Safety Issues. Chinese journal of Food Hygiene. 2015;27:155-158

Coman A, Chereches RM, Ungureanu MI, Vasarhelyi EO, Valentine MA, Sabo-Attwood T, Gray GC. An Assessment of the Occupational and Environmental Health Needs in Seven Southeastern European and West-Central Asian Countries. Journal of Epidemiology and Global Health. 2015;May 8. pii: S2210-6006(15)00054-4. doi: 10.1016/j.jegh.2015.04.004. [Epub ahead of print]

Leedom Larson KR, Heil GL, Chambers TM, Capuano A, White SK, and Gray GC. Serological Evidence of Equine Influenza Infections among Persons with Horse Exposure in Iowa, 2005. J Clin Virology 2015:67:78-83.

Cao WC, Liu K, Zhou H, Sun RX, Yao HW, Yu Li, Wang L, Mu D, Li XL, Yang Y, Gray GC, Yin W, Fang LQ, Yu H, and Cui N. A National Assessment of the Epidemiology of Severe Fever with Thrombocytopenia Syndrome, China. Sci Reports. 2015; Apr 23;5:9679. doi: 10.1038/srep09679.

Khan SUK, Anderson BD, Heil GL, Liang S, Gray GC. A Systematic Review and Meta-Analysis to Measure Seroprevalence of Influenza A (H9N2) Virus Infection in Humans of Influenza A (H9N2) Virus Infection in Humans. J Infect Dis 2015 Feb 23. pii: jiv109. [Epub ahead of print]

Memish ZA, Masri MA, Anderson BD, Heil GL, Merrill HR, Khan SU, Alsahly A, and Gray GC. Elevated Antibodies against Rift Valley Fever Virus among Adult Males with Exposure to Ruminants in Saudi Arabia. Am J Trop Med Hyg 2014, in press.

Valentine MA, Perdue C, Gray GC. Evaluation of the Certificate in Emerging Infectious Disease Research and Certificate in One Health Training Programs. Journal of Epidemiology and Global Health. 2014; in press

Qi W, Su S, Xiao C, Li H, He S, Ke C, Wu J, Gray GC, Zhang G, Liao M. Antibodies Against H10N8 Avian Influenza Viruses Among Animal Workers in China before 2013.BMC Medicine 2014; in press.

Anderson BA, Gray GC. Emerging and Reemerging Infectious Diseases in Reference Module, in press.

Zheng X, Lu J, White SK, Sabo-Attwood T, Gray GC. Adopting and Implementing a One Health Approach for Solving Complex Health Issues in China. J Prev Med (China). 2014; in press

Anderson BD, Ma MJ, Lu JH, Ma MM, Gray GC. Emerging Adenovirus Threats: Should China Develop a Vaccine-Oriented Prevention Strategy? J Prev Med (China). 2014; in press.

Memish ZA, Alsahly A, AlMasri M, Heil GL, Anderson BD, Peiris M, Khan SU, Gray GC. Sparse Evidence of MERS-CoV Infection among Animal Workers Living in Southern Saudi Arabia During 2012. Influenza Other Respir Viruses 2014; in press.

Memish ZA, Almasri M, Assirri A, Al-Shingiti AM, Gray GC, Lednicky, JA, Yezli S. Environmental Sampling for Respiratory Pathogens in Jeddah Airport During The 2013 Hajj Season. Amer J Infect Control 2014; in press.

Su S, Wang L, Fu X, He S, Hong M, Zhou P, Gray GC, Lai A, Li S. Infection and Transmission of H3N8 Equine Influenza Virus in Cats. Emerg Infect Dis 2014; in press

Zumla A, Al-Tawfiq JA, Enne VI, Kidd M, Drosten C, Breuer J, Muller MA, Hui D, Maeurer M, Bates M, Mwaba P, Al-Hakeem R, Gray GC, Gautret P, Al-Rabeeah AA, Memish AZ, Gant V. Rapid Point of Care Diagnostic Tests for Respiratory Tract Infections 2013 needs, advances and future prospects. Lancet Infect Dis 2014. Sep 1. pii: S1473-3099(14)70827-8. doi: 10.1016/S1473-3099(14)70827-8. [Epub ahead of print]

Al-Tawfiq JA, Zumla A, Gautret P, Gray GC, AlZamkhshary, Hui DS, Al-Rabeeah AA, Memish ZA. Emerging Respiratory Viruses Surveillance. Lancet Infect Dis 2014 Sep 1. pii: S1473-3099(14)70840-0. doi: 10.1016/S1473-3099(14)70840-0. [Epub ahead of print] Review.

Gautret P, Gray GC, Charrel RN, Odezulu NG, Al-Tawfiq JA, Zumla AI, Memish ZA. Emerging respiratory tract infections - Environment Risk Factors and Transmission. Lancet Infect Dis, 2014. Sep 1. pii: S1473-3099(14)70831-X. doi: 10.1016/S1473-3099(14)70831-X. [Epub ahead of print] Review

Su S, Gray GC, Lu JH, Liao M, Zhang G, Li S. New One Health Strategies Needed for Emerging Pathogens Detection and Control at Cantonese Live Animal Markets, Southern China. Clin Infect Dis 2014; in press.

El Badry M, Merrill MM, Ma MM, Ma MJ, Lu J, Cao WC, Gray GC. China's Great Wall, Israel's Bar Lev Line, and Passive Infectious Disease Surveillance Military Medicine Research 2014; in press.

Wang A, Gray GC, Lu J. One Health - An Effective Approach to Food Safety Issues. Chinese Journal of Food Hygiene. 2014; In press

Radin JM, Hawksworth AW, Blair PJ, Faix DJ, Rman R, Russell KL, Gray GC. Dramatic Decline of Respiratory Illness among US Military Recruits after the Renewed Use of Adenovirus Vaccines. Clin Infect Dis 2014 Jul 2. pii: ciu507. [Epub ahead of print]

Yondon M, Zayat B, Nelson ML, Heil GL, Anderson BD, Lin Xudong, Halpin RA, McKenzie PP, White SK, Wentworth DE, Gray GC. Equine Influenza A(H3N8) Virus Isolated from a Bactrian Camel, Mongolia. Emerg Infect Dis 2014;20;2144-7.

Coman A, Maftei DN, Krueger WS, Heil GL, Chereches, RM, %u0218irlincan E, Bria P, Dragnea C, Kasler I, Valentine MA, Gray GC. A Prospective Study of Romanian Agriculture Workers for Zoonotic Influenza Infections PLoS One. 2014; e98248. doi:10.1371/journal.pone.0098248

Su S, Zhou P,Qi W,Jia K, Ke C, Wu J, Zhang G, Gray GC, Liao M, Li S. First Evidence of H10N8 Avian Influenza Virus infections among Feral Dogs in Live Poultry Markets in Guangdong Province, China. Clin Infect Dis 2014; May;52(5):1762-5. doi: 10.1128/JCM.03522-13. Epub 2014 Mar 5.

Lu QB, Tong YG, Wo Y, Wang HY, Liu EM, Gray GC, Liu W, Cao WC. Epidemiology of Human Adenovirus and Molecular Characterization of Human Adenovirus 55 in China, 2009-2012. Influenza Other Respir Viruses. 2014 May;8(3):302-8. doi: 10.1111/irv.12232. Epub

Khurelbaatar N, Krueger WS, Heil GL, Darmaa B, Ulziimaa D, Tserennorov D, Baterdene A, Anderson BD, and Gray GC Little Evidence of Avian or Equine Influenza Virus Infection among A Cohort of Mongolian Adults with Animal Exposures PLOS One, 2014;Jan 21;9(1):e85616. doi: 10.1371/journal.pone.0085616

Messenger AM, Barnes AN, Gray GC. Reverse Zoonotic Disease Transmission (Zooanthroponosis): A Systematic Review of Seldom-Documented Human Biological Threats to Animals. PLoS One. 2014 Feb 28;9(2):e89055. doi: 10.1371/journal.pone.0089055.

Okoye J, Eze D, Krueger WS, Heil GL, White SK, Merrill HR, and Gray GC. Evidence for Subclinical H5N1 Avian Influenza Infections among Nigerian Agricultural Workers. J Med Virol 2014; Mar 28. doi: 10.1002/jmv.23909. [Epub ahead of print]

Krueger WS, Lucero N, Brower A, Heil GL, Gray GC. Evidence for Unapparent Brucella canis Infections among Adults with Occupational Exposure to Dogs. Zoonoses Public Health, 2014;Feb 6. doi: 10.1111/zph.12102. [Epub ahead of print]

Coman A, Maftei DN, Chereches, RM, %u0218irlincan E, Bria P, Dragnea C, McKenzie PP, Valentine MA, Gray GC. Avian influenza Surveillance in the Danube Delta using Sentinel Geese and Ducks. Influenza Research & Treatment 2014:965749. doi: 10.1155/2014/965749. Epub 2014 Mar 25

Liu K, Cui N, Fang LQ, Wang BJ, Peng W, Li H, Wang LY, Liang S, Wang HY, Zhang YY, Zhuang L, Yang H, Gray GC, de Vlas SJ, Cao WC. Epidemiologic Features and Environmental Risk Factors of Severe Fever with Thrombocytopenia Syndrome, Xinyang, China. PLoS Negl Trop 2014: Dis 8(5): e2820. doi:10.1371/journal.pntd.0002820.

Gray GC, Krueger WS, Chum C, Putnam SD, Wierzba TF, Heil GL, Anderson BD, Yasuda CY, Williams M, Kasper MR, Saphonn V, Blair PJ. Little Evidence of Subclinical Avian Influenza Virus Infections among Rural Villagers in Cambodia PLoS ONE 2014;9(5):e97097. doi:10.1371/journal.pone.0097097

Meliopoulos VA, Kayali G, Burnham A, DuBois R, Oshansky CM, Thomas PG, Gray GC, and Schultz-Cherry S. Evidence for zoonosis of astrovirus: Adults occupationally exposed to turkeys have antibodies against turkey astrovirus. PLoS ONE 2014; 9:e96934. doi:10.1371/journal.pone.0096934

Khan SU, Atanasova KR, Krueger WS, Ramierez A, Gray GC. Epidemiology, Geographical Distribution, and Consequences of Swine Zoonoses: A Narrative Review Emerging Microbes and Infection, 2014; May;52(5):1762-5. doi: 10.1128/JCM.03522-13. Epub 2014 Mar 5.

Su S, Zhou P, Jia K, Khan SU, He S, Fu X, Hong M, Sun L, Qi W, Gray GC, Li S. Evidence for Subclinical Influenza A(H1N1)pdm09 Virus Infection among Dogs, Guangdong Province, China. J Clin Microbiol 2014; 52:1762-5.

Su S, Chen J, Zhou P, Khan SU, Sun L, Gu H, Lu G, Jia K, Qi W, Gray GC, Li S. Virological and Epidemiological Evidence of Avian Influenza Virus infections among Feral Dogs in Live Poultry Markets, China. A Threat to Human Health? Clin Infect Dis 2014; 58:1644-1646.

Ma MJ, Yang XX, Xia X, Anderson BD, Heil GL, Gray GC, Cao WC. Comparison of Commercial Influenza A Virus Assays in Detecting Avian Influenza H7N9 among Poultry Cloacal Swabs, China. J Clin Virology 2014:59:242-245.

Su S, Wang L, Fu X, He S, Hong M, Zhou P, Gray GC, Lai A, Li S. Infection and Transmission of H3N8 Equine Influenza Virus in Cats. Emerg Infect Dis 2014; 20:2096-9.