Undoubtedly his most outstanding contribution is the pivotal and lead role he played in the control of AIDS by establishing the National STD/AIDS Control Programme in Sri Lanka in 1985.

As Director he worked closely with other national programmes in the health sector dealing with blood transfusion, health of the mother and child, media and communication, tuberculosis and medical research and UN agencies.

Many categories of health professionals in different medical disciplines have benefited from his expertise ranging from medical undergraduates, public health inspectors, nursing officers, to private sector health personnel. Further he has been responsible for the training of postgraduate students in Community Medicine and Venereology. He has served as an external faculty member of the Faculty of Medicine of the University of Colombo.

He played a major role in the establishment of the College of Venereologists in 1998 to advance the speciality, which led to the establishment of the Board of Study in Venereology at the Postgraduate Institute of Medicine (PGIM), University of Colombo. This not only ensured that the Ministry of Health would have adequate numbers of specialists to deal with the emerging HIV /AIDS epidemic but further opened up a new path for professional advancement for young doctors. Today, the Board of Study in Venereology conducts courses conferring a Diploma and the degree of of Doctor of Medicine (MD) in the specialty. He has served as the Chairperson of, the Board of Study in Venereology and has served as an examiner as well.

In 2003 Dr. Jayakuru was elected a Fellow of the Sri Lanka College of Venereologists in recognition of his outstanding contribution to the speciality.

His expertise in the sphere of STI/HIV /AIDS has been recognized both regionally and internationally. He has served as a WHO Temporary Advisor and a WHO short term technical advisor on STI/HIV /AIDS to the South East Asian region. He has represented the country at many regional consultative meetings related to the control and prevention of STI/HIV AIDS.

A committed professional, he was also active in many professional bodies both locally and internationally.

On this sad occasion, we share our sorrow and grief with Mrs. Wimal Jayakuru and family. May he attain the supreme bliss of Nibbana.