https://www.ehrtschnappingerlabs.org/home-old daily 0.75 2016-09-02 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556132431598-VQE7RQIXX5J6P1PVSZ1T/DSC_7165+%281%29.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556132565483-CMQP14FTRTRJ9LYT04MA/DSC_6536+%281%29.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556132615440-II9QZOSCO6L8T8XLGHSG/helene+bacteria.png Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556133140292-ILR3EL76T741WBZHTUGM/F4.large.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556133296251-O7HP4H9JFHNEV40EGCT0/DSC_6615.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556133685355-LVO41I3TBOGXXAUMTQCQ/25182092_10155744844265569_2309760408007045960_o.jpg Home https://www.ehrtschnappingerlabs.org/collaborators daily 0.75 2026-01-30 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1558580730989-X1U06F9HHCHHRYZFCIJM/Map.png Tri-I TB Research Group https://www.ehrtschnappingerlabs.org/connect daily 0.75 2026-07-15 https://www.ehrtschnappingerlabs.org/news-fun daily 0.75 2026-04-07 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556134076390-KVLBL84M4L9SADXZDOTI/Trivia+night+2019_closeup.jpg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409345060-WET27CVCKI2DCCGSVRQT/IMG_4456.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409344805-FYSPUFSX5JI3OVKKPTAE/IMG_4457.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409444713-QUULD7SVUFRO197RMPPB/PXL_20210723_140134392.jpg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409708447-84KSYU5H931ADVUHOCE6/IMG_4438.jpeg News - Covid restrictions lifted for vaccinated individuals In reserach spaces. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627410073510-9Z94AGYAWUNTQKW5AYMA/IMG_4267.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409790010-ZF6QMUFH5YJ2RGNJ4UJQ/IMG_4256.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409797609-PU82JQ9AYMC713XFRDRA/IMG_4265.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627410073614-KXXQ3FXWI1Y2HAO1EQWQ/IMG_4266.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1602785225592-3PJPE9PKANMC4VHFJHVJ/farewellsophie.jpg News Farewell Sophie (and Charlotte))! https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1602784283245-1VSHBJN53LMFAD8KZX95/farewellAnishaheadshot.jpg News First in-person farewell for Anisha after pandemic (after two virtual farewells for Hongwei and Claire. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1602785182474-VVP8CPWBKUT05UIF35D3/IMG_20200724_164847_1.jpg News Paint Night. First in-person hangout after lockdown! https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1602785167378-06AT7Q3T5XL9YEHNYC7T/image-asset.jpeg News Dr. Meredith defended her thesis https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1602785151256-ENR7KTHH8N9OXD1XYKG6/IMG_20200221_183711_1.jpg News Sophie’s baby shower! https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1581966964939-JC2MRFSB6ZZM1VXOGLLX/IMG_20200121_151814.jpg News Sabine Ehrt named the Chair of the Immunology and Microbial Pathogenesis program. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1581966712947-RDYNJSX3ZEA63874GTJS/IMG_20200124_165002.jpg News Jia’s Farewell Party https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1581966545806-ZO053X0HX2S2VP2LGG8K/HSB_4116.JPG News Annual Holiday Party of 2019 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1581966516010-Q6N5TRVMQEQ20T9RFUW1/image-asset.jpeg News Immunology and Microbial Pathogenesis program retreat at the Mohonk Mountain House. We are joined by people from the Nathan Lab. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1563896108401-ZY0F8OGORZMBOO9NQOZ7/IMG_5637.JPG News Last week we welcomed our newest students, Thais Klevorn and Frances Marks, with a trip to The Sweet Shop (best ice cream in the neighborhood)! Here’s hoping the rest of their PhD training is just as sweet. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560810777140-HZ6L79CYTCU01FW4P0WG/IMG_5262_01.jpg News Lunch with Rock Lab at Rockefeller University https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560810335541-HBG2DK01VSDUK94F10FI/IMG_20190521_131657.jpg News The RHEHRTUNEROCKRUBETTINGER Retreat @Interlaken Inn A day long talks-packed meeting with the labs of Eric Rubin, Sarah Fortune, Chris Sassetti, Jeremy Rock, Kyu Rhee and Chris Sassetti at picturesque Interlaken Inn. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560809371259-GQ0HQEGCXCFAPTRLFDYZ/IMG_4803.jpg News Newly minted Dr. Wang! In March 2019, student Ruojun Wang successfully defended her thesis work and now has her PhD! After her fantastic presentation, the lab celebrated with lots of food and an adorable squirrel drawn by rotation student Thais Klevorn. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560809404386-AFMHBXT1BD2K4XVDBZGC/Trivia+night+2019_closeup.jpg News Lab Trivia night! The lab gathered for a friendly trivia competition and potluck. The winners took home ‘Top Banana’ trophies and lots of bragging rights. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560809430688-DIPNT70I4PMS63CEY67Z/DSC_6621.jpg News Students at farewell party, Nov. 2018 In November 2018, we bid farewell to some fabulous coworkers who were all moving to new cities. We celebrated our time with them with a NYC-themed photobooth. Wishing them all well in their labs! https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560809696486-AEDORS71VIHX40ZAVRBL/IMG_20181012_171747.jpg News Lab Paint Night! (October 2018) Sometime we gather together to decompress in a relaxed coffee-table music vibe paint night. First of its kind and because of popularity, many more to come. https://www.ehrtschnappingerlabs.org/people-1 daily 0.75 2026-07-16 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1769800101709-B0HZ5NFSDAXXGB8M223Q/USE+ME+Lab+group+photo+used+for+website.jpg People https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1728413729439-8Y7TV2UQNUMNCFRDHA2A/2021_groupshot_cr16%3B9_small_size.jpg People https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1625259073042-39UWMK3676JXYPK2J6F0/FINAL_MG_7641.jpg People https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1625259052991-HFJGOMVH41V5YG6FPVP9/Groupshot_MG_9556.jpg People https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557349098223-SDXIO334JSJK1Q6V1DBO/FINAL_EhrtSchnappingerLab_groupshot_05_25_17_MG_7986.jpg People - 2017 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557349071104-YNHZ0OR2S91554UUQ1PS/_MG_5428.jpg People - 2014 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/db1ec808-befe-47bd-ab33-78f8219812ea/sally.jpg People - Xiaoxian An (Sally) Research Associate Sally grew up in Dalian, China, and completed her PhD studies at the University of Cincinnati in Pharmaceutical Sciences. Sally’s previous research experience was mainly in neuroscience, including developing biomaterials for peripheral nerve repair and discovering rapid-acting antidepressants. She was introduced to immunology when working as a research associate on B cell lymphoma at Weill Cornell before joining the Schnappinger lab in April 2024. Even though from a different background, Sally is still fascinated by the intricate disease mechanisms and the challenges in developing new therapies. Sally also really enjoys working on a project on the molecular and genetic levels, besides her familiarity with animal behaviors. Outside the lab, she likes to walk dogs in the park, explore new coffee shops, and practice yoga. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1558575422469-7XDVHQVHRJYHMAH1F31L/Arka_lab+photo.jpg People - Arka Banerjee Instructor Arka is originally from Kolkata, India. After completing his MSc from the Department of Biotechnology, University of Calcutta, Kolkata, Arka obtained his Ph.D from the Indian Institute of Science (IISc), Bangalore, under the guidance of Professor Sandhya S. Visweswariah. He joined the Schnappinger laboratory as a Postdoctoral Associate in 2018. His current research interests focus on developing directed regulatory switches in mycobacteria and use them to better understand their cellular physiology. In his free time, Arka enjoys cooking and reading about popular science and current affairs. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/e30edcc9-b414-4d70-bc06-e7ec902a6cad/headshot+1.jpg People - Lauren Carpenter Administrative Coordinator After completing a Bachelor of Biomedical Science (2018), Lauren developed an interest in science education, earning a Bachelor of Science (Hons I) (2020) and a Ph.D. in Science Education (2025) from The University of Queensland, Australia. Her research focused on how universities can better support science graduates in pursuing and succeeding in diverse career pathways beyond research and medicine. Lauren joined the lab in 2025 as an Administrative Coordinator, supporting Dr. Ehrt in her role as Chair, and contributing to the broader administrative operations of the Department of Microbiology & Immunology. Passionate about problem-solving, building relationships and supporting academic research, Lauren enjoys helping her colleagues navigate challenges to achieve their goals. Outside of work, she enjoys reading, attending concerts, and spending time with her husband and friends. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1620744797306-BQT915UQX49UTS34F1SH/anthony_castro_portrait.jpg People - Anthony Castro Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/f8aecf1e-b420-4f2f-8c4c-12fe3444c5d6/Graduation_Headshot.png People - Kathryn Eckartt Postdoctoral Associate Kathryn grew up on Long Island, New York and earned her undergraduate degree in biochemistry from Stony Brook University. She then joined the lab of Jeremy Rock at The Rockefeller University for her PhD. There she studied mechanisms causing and compensating for the growth defect of Mycobacterium tuberculosis resistant to the front-line antibiotic Rifampicin. She joined the Schnappinger lab in February 2025, where she is exploring host-pathogen interactions and strengthening her computational skills. In her free time, she enjoys running, knitting, and horror movies. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557778475783-EXYOV4E721R41E5YH82U/alexandre_cr.jpg People - Alexandre Gouzy Assistant Professor Alexandre Gouzy obtained his Ph.D. in Microbiology from the University of Toulouse, France. During his Ph.D., he studied the mechanisms by which Mycobacterium tuberculosis exploits nitrogen during infection in Dr. Olivier Neyrolle’s laboratory at the Institute of Pharmacology and Structural Biology (IPBS). Alex first joined the Ehrt laboratory in 2014 as a postdoctoral associate, where he investigates the contribution of bacterial nutrition and metabolism in the resistance against immunity and anti-tuberculosis drugs. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/e85efe3c-3a74-4fbc-9c00-a0582034a4ce/Moritz_small.jpg People - Moritz Kayser Postdoctoral Associate Moritz grew up in Wiesbaden, Germany and studied medicine at the Hannover Medical School in Hannover, Germany. He completed his M.D. thesis in the lab of Prof. Ulrich Kalinke at Twincore Center for Clinical and Experimental Infection Research, Hannover, investigating the efficacy of a novel, liposome-based targeted therapy of M.bovis BCG-infected alveolar macrophages and dendritic cells in a murine TB model. After graduating, Moritz joined the residency program at the Department of Respiratory Medicine and Infectious Disease of Hannover Medical School, where he worked on clinical research projects on immunological therapy for severe asthma and infectious disease in lung transplant recipients while training as a physician. He joined the Ehrt lab in 2024 as a Postdoctoral Research Fellow, exploring the role of the mycobacterial proteasome in acid adaptation. In his free time, Moritz enjoys reading, running, bouldering and exploring the playgrounds of New York with his wife and young daughter. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1567090248992-YN7U8W8SG9L03NR19F2Q/heatherkim.jpg People - Heather Kim Research Coordinator Heather joined the Ehrt-Schnappinger Labs in July of 2019. She received her B.S. in biology at SUNY New Paltz, and her M.A in biology concentrating in biotechnology at Hunter College. Previously, she worked in the clinical genetic diagnostic department at the University of Pennsylvania analyzing blood and tissue samples to identify hereditary disease markers; and in the mucosal immunology department at SUNY-University at Albany examining the interactions of fungi and beta-glucan particles with murine Peyer’s Patches. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/f5633e72-0e38-48d8-95fa-2afc8011d238/Eonmin+Headshot.JPG People - Eonmin Ko Postdoctoral Associate Eonmin Ko grew up in Busan, South Korea. She received her Ph.D. in Microbiology from Pusan National University. Before joining the Ehrt-Schnappinger Lab as a Postdoctoral Associate in 2024, she was a postdoctoral fellow at the Korea National Institute of Health, where she studied bacterial persistence in Staphylococcus aureus and Mycobacterium tuberculosis. Her current research focuses on the genetics, metabolism, and pathogenesis of Mycobacterium tuberculosis. Outside the lab, she enjoys knitting and caring for houseplants. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557778544398-4FNXE1HGTXN9939N4M9P/Ha-Na+Lee+photo_cr.jpg People - Hana Lee Research Associate Hana received her Ph.D. degree with the major of microbiology from Pusan National University in South Korea in Feb 2018. During her Ph.D., she studied the regulation of peroxide stress responses in Mycobacterium smegmatis. She joined the laboratory of Dr. Dirk Schnappinger in April 2018 and now is working on a project for identification and characterization of genes involved in the utilization of biotin in Mycobacterium tuberculosis. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557778592338-XAD7JXHKQCSCTOO249BC/Sae+Woong_cr.jpg People - Sae-Woong Park Assistant Professor Sae Woong Park is from Seoul, Korea. He received his M.S. and Ph.D. degree in Microbiology from Yonsei University and has been working at Weill Cornell Medicine since 2008. His research focus is biotin biosynthesis in Mycobacterium tuberculosis and the interaction of Mtb with microbiota. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557778607393-56TKXRAW91V0Z2KFV4IJ/Di+Qu_cr.jpg People - Di Qu Research Associate Di Qu obtained her Ph.D. at the Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai. During her Ph.D., she mainly focused on the molecular mechanisms of HIV-1 replication and latency in Dr. Jianhua Wang’s laboratory. She joined Dr. Dirk Schnappinger’s laboratory at Department of Microbiology and Immunology, Weill Cornell Medicine in November 2017. At present, she is working on the metabolism of Mycobacterium tuberculosis, specifically biotin synthesis, in attempt to validate new drug targets for tuberculosis treatment. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/ecea74e6-e63e-42b3-8d3d-f6a44f6288a5/Kaushik+Raman.jpg People - Kaushik Raman Bioinformatics Analyst Kaushik, originally from Chennai, India. Kaushik obtained my bachelor's in biotechnology from Anna University, Chennai, during which he worked at IISc, studying the causal effect of STRs in dementia. Kaushik received his master's in Biology with a specialization in Bioinformatics from New York University. For his master's research, Kaushik created an R package that takes annotation data for orthologous species and creates a database to better understand organisms and their genes. In his free time, Kaushik enjoys cooking, playing badminton and going on walks across the city. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/6789cb8d-fa35-4be0-8efa-3e21e19b4efa/Miljan+Headshot.jpeg People - Miljan Stupar Postdoctoral Associate Miljan Stupar obtained his bachelors degree and doctorate in Microbiology and Immunology from The University of Queensland, Australia. His doctoral research focused on understanding the adaptive mechanisms of Mycobacterium tuberculosis during acid stress. In late 2023 he joined the Ehrt lab as a postdoctoral associate, where he studies the genetic foundations of paucibacillary infection and the mechanisms underpinning effective multi-drug regimens for tuberculosis. In his free time, he enjoys cycling, running and reading. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1620655194685-723P77VE01RTXL38SG40/Prajna_cropped.jpg People - Prajna Tripathi Postdoctoral Associate Prajna is originally from India. She pursued her Masters in Biotechnology from the School of Biotechnology, BHU (Banaras Hindu University) and later obtained her Ph.D. from National Institute of Immunology, New Delhi, India in 2019. In her Ph.D., Prajna investigated the mechanisms by which ClpB - a refoldase chaperones of Mycobacterium tuberculosis, aids in its stress management. She joined the Ehrt-Schnappinger labs as a Postdoctoral Associate in January 2021. In her free time, Prajna enjoys cooking, walking in parks, reading, and talking to family and friends. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1620745049246-IYJSIJRCXDEU40MLTUH0/photo-Yuanyuan+Xu_cr.jpg People - Yuanyuan Xu Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557778643178-2JWUN38JMINSW040OPAU/caro_cr.jpg People - Carolina Trujillo Senior Research Associate Carolina grew up in Medellín, Colombia and received her Ph.D. in Microbiology from Boston University in 2009. She joined Dr. Sabine Ehrt’s Lab as a Postdoctoral Associate initially exploring the nutritional requirements of Mycobacterium tuberculosis (Mtb) essential for establishing and maintaining a chronic infection. Since then, she has been contributing to multiple projects in the lab, including efforts to characterize mechanisms important for Mtb virulence, validation of new drug targets for tuberculosis, and identifying molecular processes that Mtb requires for paucibacillary persistence. Besides her research, she likes to keep the lab running and organized. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1582301164367-5HDR9YXG1O2DUBEMWHYQ/ScientistEmoji_male.jpg People - Josh Wallach Senior Research Scientist Josh graduated from the University School of Milwaukee and New York University. He came to Weill Cornell in 2006. Josh is one of the original members of the Schnappinger lab. *Webmaster note: Josh is incredibly helpful when you need to troubleshoot cloning, and has been on every winning trivia team our lab has had. https://www.ehrtschnappingerlabs.org/ehrt-lab daily 0.75 2021-08-25 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557780533548-8F701OU1E11JSIN8Y5W4/women_in_science.jpg Ehrt lab https://www.ehrtschnappingerlabs.org/home daily 1.0 2026-07-15 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1728413552670-V31L4JCG1W07Q2ERBRHS/final+Lab+picture.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560273086558-1Q43OTK3CGCR98IVXVWF/SE_2_June+2019.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560291283126-Y10MSLPRA04131TIZ39O/Dirk+-+pic+for+website.jpg Home https://www.ehrtschnappingerlabs.org/new-page daily 0.75 2019-05-08 https://www.ehrtschnappingerlabs.org/schnappinger-lab daily 0.75 2021-08-25 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560399113220-2CWUQVNMZCWPOXZXRHY5/DSC_8495.jpg Schnappinger Lab https://www.ehrtschnappingerlabs.org/schnappinger-lab-publications daily 0.75 2019-05-08 https://www.ehrtschnappingerlabs.org/ehrtpubs daily 0.75 2025-05-20 https://www.ehrtschnappingerlabs.org/schnappingerpubs daily 0.75 2025-05-20