Union leaders refuse to back vaccination drive Health Minister Terrence Deyalsingh - Ministry of Health Minister of Health Terrence Deyalsingh's call to trade union leaders to back the national vaccination drive has fallen on deaf ears. Speaking at the launch of the mass vaccination site at the National Academy for Performing Arts, Port of Spain, on Friday, Deyalsingh said the country’s hope of achieving herd immunity will require much more than a government-public partnership. He reminded religious, community and union leaders of the important role they play in seeking the best interest of the working class. “The clarion call is for leadership. Leadership because people look up to you for guidance, whether you are union leader, councillor, MP – people look to you for guidance, and the guidance you must give is that vaccines are safe, effective and they would save your lives. There must be a collective sense of vision and unity of purpose that we can do this."