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Dr Jason Chay Wai Mun

Dr Chay Wai Mun Jason

​MBBS (Singapore), MRCP (UK), FRCPath Haematology (UK), FAMS (Singapore), GDFM (Singapore)

Senior Consultant

Sengkang General Hospital

Specialty: Haematology, Laboratory Haematology, Transfusion Medicine

Clinical Appointments

  • Senior Consultant Department of Pathology Sengkang General HospitalSengkang General Hospital


​Dr Jason Chay was trained in haemotology and transfusion medicine at Blood Service Group, Health Sciences Authority and the Department of Haemotology, Singapore General Hospital. He was previously the Director of Clinical Services at Blood Services Group, Health Sciences Authority from April 2016 to June 2018.

He is currently working in Department of Pathology in Sengkang General Hospital as a Senior Consultant (hospital blood bank and lab haemotology services) and he is also the current Chairperson of the SKH Hospital Blood Transfusion Committee.

His secondary appointment is at SGH Department of Clinical Laboratory Medicine. He is also a visiting consultant to Blood Services Group, Health Sciences Authority as well as Clinical Assistant Professor at Duke NUS.

His research interests is in Immuno-haemotology, Clinical Transfusion Medicine, Massive Transfusion Protocol, and Patient Blood Management.


  • FAMS (Singapore)
  • FRCPath Haematology (UK)
  • MRCP (UK)
  • GDFM (Singapore)

Professional Appointments and Committee Memberships

  • Visiting Consultant, Blood Services Group, Health Sciences Authority
  • Clinical Assistant Professor, Duke NUS
  • ​Fellow, Academy of Medicine, Singapore
  • Member, Singapore Society of Haematology (SSH)
  • Honorary Secretary, Singapore Society of Haematology (SSH)
  • Associate Member (BBTS), British Blood Transfusion Society (UK)
  • Ordinary Member, College of Family Physician, Singapore
  • Ordinary Member, Singapore Medical Association


Research Interests


​Rubber Foreign Bodies in Puncture Wounds of the Foot in Patients wearing Rubber-soled Shoes

HC Chang, William Verhoeven, W M Chay

Fot and Ankle International. May 2001: Vol 22(5):409-14

JIF: 1.9, Times Cited: 24


Irradiation of Blood Products for Neonatal Exchange Transfusion.

Phipps C, Chay J, Koh M.

Vox Sanguinis 2009: Nov; 97(4):358-359

JIF: 2.107, Times Cited: 1


Appropriate blood component usage

M. B. C. Koh, Y. S. Lee & J. Chay

ISBT Science Series 2011: 6; 249–256

JIF: 0.39, Times Cited: 2


A national common massive transfusion protocol (MTP) is a feasible and advantageous option for centralized blood services and hospitals

J. Chay, M Koh, Tan HH, Ang AL, et al

Vox Sanguinis (2016), 110, 36–50

JIF: 2.107, Times Cited: 12


Singapore Rare Donor Program

R Alcantara, J. Chay & Ang AL.

Immunohematology (2016), Volume 32 (2), 35-36

JIF: 0.67, Times Cited: 1


Vox Sanguinis International Forum on Hepatitis E

J. Petrik, M. Lozano, C. R. Seed, H. M. Faddy, A. J. Keller, P. S. Prado Scuracchio, S. Wendel, A. Andonov, M. Fearon, G. Delage, J. Zhang, J. W. K. Shih, P. Gallian, R. Djoudi, P. Tiberghien, J. Izopet, J. Dreier, T. Vollmer, C. Knabbe, R. Aggarwal, A. Goel, A. R. Ciccaglione, K. Matsubayashi, M. Satake, K. Tadokoro, S.-H. Jeong, H. L. Zaaijer, E. Zhiburt, J. Chay, D. Teo, S. S. Chua, M. Piron, S. Sauleda, J.-M. Echevarrıa, H. R. Dalton & S. L. Stramer

Vox Sanguinis (2016) 110, 93–130

JIF: 2.107, Times Cited: 50


Vox Sanguinis International Forum regarding practices related to donor haemoglobin and iron

M. Goldman, K. Magnussen, J. Gorlin, M. Lozano, J. Speedy, A. Keller, J. Pink, J. N. S. Leung, C. C. Y. Chu, C.-K. Lee, J. Faed, J. Chay, H. H. Tan, D. Teo, R. Djoudi, G. Woimant, A.-M. Fillet, J. Castr_en, G. Miflin, G. C. Vandewalle, V. Compernolle, J. M. Cardenas, L. Infanti, A. Holbro, A. Buser, K. van den Hurk, V. J. Yahalom, V. Gendelman, E. Shinhar, A. F. Eder, W. R. Steele, E. M. O'Neill, H. Kamel, R. Vassallo, G. Delage, A. Lebrun, P. Robillard, M. Germain, M. Gandhi, K. A. West & H. G. Klein

Vox Sanguinis (2016), 111, 449-455

JIF: 2.107, Times Cited: 30


Vox Sanguinis International Forum on donor notification and counselling strategies for markers of transfusion transmissible infections

R. R. Sharma, M. Lozano, M. Fearon, M. Bigham, R. Djoudi, P. Gallian, G. Woimant, C. Lee, J. N. S. Leung, W. C. Tsoi, N. Marwaha, S. Sachdev, K. Tadokora, Y. Tani, H. Matsukura, N. Shantseva, E. Zhiburt, S. Hindawi, J. Chay, T. Huang, D. Teo, N. Moleli, S. Oyonarte, S. B. A. Jayasekara, A. Bokhorst, P. van den Burg, P. Hewitt, C. Bianco & D. Kessler

Vox Sanguinis (2017) 112, e1-e21

JIF: 2.107, Times Cited: 1


Urgent Delivery - Validation and operational implementation of urgent blood delivery by modern high-speed hospital Pneumatic-Tube-System to support bleeding emergencies within a hospital massive transfusion protocol

Jason Wai Mun Chay, Ji Hyun Kim, Nur Shahirah B M Taha, Siew Hong Chiew, Kwong Weng Chin, Liam Pock Ho.

Laboratory Medicine, 2019 Oct 10; 50(4): e59-e69

JIF: 1.22, Times Cited: Not provided by publisher (Oxford University Press) & not found on google scholar


A cohort study to evaluate the effect of combination Vitamin D, Magnesium and Vitamin B12 (DMB) on progression to severe outcome in older COVID-19 patients.

Chuen Wen Tan, Liam Pock Ho, Shirin Kalimuddin, Benjamin Pei Zhi Cherng, Yii Ean Teh, Siew Yee Thien, Hei Man Wong, Paul Jie Wen Tern, Jason Wai Mun Chay, Chandramouli Nagarajan, Rehena Sultana, Jenny Guek Hong Low, Heng Joo Ng

Nutrition, 2020 Sept,

JIF: 3.639, Times Cited

Research Trials