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  • David Dowdy Lab

    The David Dowdy Lab conducts research in the field of infectious disease epidemiology. We use an interdisciplinary approach that involves infectious disease modeling, health economics, classical epidemiology, and operational and implementation science. Much of our work explores the diagnosis and treatment of tuberculosis. We also have a longstanding interest in “translational epidemiology,” with a goal of developing methods to help medical professionals who use epidemiological data make decisions that are in the best interest of patients and public health.

    Principal Investigator

    David Wesley Dowdy, M.D., Ph.D., M.Sc., Sc.M.

    Department

    Medicine

  • Karakousis Lab

    The Karakousis Lab is primarily focused on understanding the molecular basis of Mycobacterium tuberculosis persistence and antibiotic tolerance. A systems biology-based approach, including the use of several novel in vitro and animal models, in combination with transcriptional, proteomic, genetic, imaging, and computational techniques, is being used to identify host cytokine networks responsible for immunological control of M. tuberculosis growth, as well as M. tuberculosis regulatory and metabolic pathways required for bacillary growth restriction and reactivation. In particular, we are actively investigating the regulatory cascade involved in the mycobacterial stringent response. Another major focus of the lab is the development of host-directed therapies for TB, with the goal of shortening treatment and improving long-term lung function. Additional research interests include the development of novel molecular assays for the rapid diagnosis of latent TB infection and active TB disease, and for the detection of drug resistance.
    Lab Website

    Principal Investigator

    Petros Constantine Karakousis, M.D.

    Department

    Medicine

  • Lamichhane Lab

    Our research focuses on the biology of the peptidoglycan of Mycobacterium tuberculosis, the organism that causes tuberculosis, and Mycobacteroides abscessus, a related bacterium that causes opportunistic infections. We study basic mechanisms associated with peptidoglycan physiology but with an intent to leverage our findings to develop tools that will be useful in the clinic to treat mycobacterial infections. Peptidoglycan is the exoskeleton of bacteria that not only provides structural rigidity and cell shape but also several vital physiological functions. Breaching this structure is often lethal to bacteria. We are exploring fundamental mechanisms by which bacteria synthesize and preserve their peptidoglycan. Although our lab uses genetic, biochemical and biophysical approaches to study the peptidoglycan, we pursue questions irrespective of the expertise required to answer those questions. It is through these studies that we identified synergy between two beta-lactam antibiotics against select mycobacteria.
    Lab Website

    Principal Investigator

    Gyanu Lamichhane, Ph.D.

    Department

    Medicine

  • IndoUS Clinical Research

    Our IndoUS team, based both in Baltimore and in India, specializes in international clinical research (cohort studies and clinical trials), public health implementation science and education in infectious diseases, HIV/AIDS, tuberculosis (TB), vaccine preventable illnesses, antimicrobial resistant infections, and more recently COVID. Since 2003, our work has been focused primarily on India, where we are engaged in several Indo-JHU and international research collaborations. We partner with several leading medical and research institutions in India (e.g. BJGMC, DY Patil, Hinduja Hospital, KEM, Bharati Vidyapeeth, NIRT, JIPMER, CMC, Medanta, IISER, YRG, IIT), as well as others in sub-Saharan Africa, US and Brazil. We are actively involved in the following consortia: 1) Indo-US Vaccine Action Program sponsored RePORT India TB research consortium, which is funded by the US National Institutes of Health (NIH) and the government of India, Department of Biotechnology. 2) RePORT International TB Research Consortium, a multilateral global consortia for TB research, 3) US NIH funded multi-country HIV and TB trials consortia of the AIDS Clinical Trials Group (ACTG) and the International Maternal Pediatric Adolescent AIDS Trials Network (IMPAACT) Network, 4) NIH and AmFAR funded IeDea HIV/TB Working Group and the Treat Asia-IeDEA HIV and TB epidemiology databases, and 5) CDC SHEPHERD AMR studies. Our group has been awarded research grants from the US NIH, US CDC, UNITAID, Indian government, and several philanthropic foundations to investigate infectious diseases of importance to India and beyond.

    Principal Investigator

    Amita Gupta, M.D., M.H.S.

    Department

    Medicine

  • Jonathan Golub Lab

    Research in the Jonathan Golub Lab focuses primarily on the epidemiology of tuberculosis (TB), specifically in patients infected with HIV. We work with the CDC to explore potential delays in TB diagnoses as well as the risk factors that contribute to death from TB in the United States. Our research also includes ongoing studies of HIV and TB patients in Brazil and South Africa.

    Principal Investigator

    Jonathan E. Golub, Ph.D., M.P.H.

    Department

    Medicine

  • Amita Gupta Lab

    The Amita Gupta Lab focuses on drug trials to prevent and treat HIV, tuberculosis (TB) and other co-morbidities in adults, including pregnant women and children who reside in low-income settings. We also conduct cohort studies assessing HIV, inflammation and nutrition in international settings; TB in pregnancy; and risk factors for TB in India (CTRIUMPH). We collaborate with several faculty in the Center for TB Research, Division of Infectious Diseases and the School of Public Health.

    Principal Investigator

    Amita Gupta, M.D., M.H.S.

    Department

    Medicine

  • Natasha Chida Lab

    The Natasha Chida Lab investigates methods for using education and curriculum development to improve patient outcomes worldwide, primarily by optimizing education of physicians-in-training. Most recently, our team has worked to develop and evaluate an assessment tool for evaluating internal medicine residents’ understanding of tuberculosis diagnostics. Previous research includes a retrospective cohort study on the high proportion of extrapulmonary TB in a low-prevalence setting as well as an analysis of ways to define clinical excellence in adult infectious disease practice.

    Principal Investigator

    Natasha Mubeen Chida, M.D., M.S.P.H.

    Department

    Medicine

  • Maunank Shah Lab

    Work in the Maunank Shah Lab focuses on infectious disease modeling and health economics, and seeks to investigate new strategies for diagnosing HIV and tuberculosis (TB) in areas with limited resources, both domestically and abroad. Our primary focus is TB diagnostics, with studies examining the diagnostic test accuracy, cost-effectiveness and programmatic impact of emerging diagnostics. We have developed mobile health initiatives to incorporate video-based therapy for TB treatment, and we have a longstanding interest in interventions that help to reduce or prevent HIV transmission.
    Lab Website

    Principal Investigator

    Maunank R Shah, M.D.

    Department

    Medicine

  • William Bishai Laboratory

    The William Bishai Laboratory studies the molecular pathogenesis of tuberculosis. The overall goal of our laboratory is to better understand tuberculosis pathogenesis and then to employ this understanding toward improved drugs, vaccines and diagnostics. Since Mycobacterium tuberculosis senses and adapts to a wide array of conditions during the disease process, it is clear that the regulation of expression of virulence factors plays an important role in pathogenesis. As a result, a theme of our research is to assess mycobacterial genes important in gene regulation. We are also interested in cell division in mycobacteria and the pathogenesis of caseation and cavitation.
    Lab Website

    Principal Investigator

    William Ramses Bishai, M.D., Ph.D.

    Department

    Medicine

  • Richard Chaisson Lab

    Research in the Richard Chaisson Lab primarily examines tuberculosis and HIV infection, with specific focus on global epidemiology, clinical trials, diagnostics and public health interventions. Our recent research has involved evaluating a molecular diagnostic test for tuberculosis in HIV patients; observing TB responses during treatment of pulmonary tuberculosis; and examining antiretroviral therapy adherence, virologic and immunologic outcomes in adolescents compared with adults in Southern Africa.

    Principal Investigator

    Richard Ernest Chaisson, M.D.

    Department

    Medicine