Dr. Scott Halstead (extreme right), a US expert on tropical diseases, appears at the resumption of the Senate inquiry on the Dengvaxia controversy on Tuesday, March 13, 2018. He said he warned Dengvaxia manufacturer, Sanofi Pasteur Inc., and World Health Organization (WHO) about the risks of the vaccine when administered to patients who have not been stricken with Dengue. PHOTO BY MIA MACATIAG
AN American expert on tropical disease appeared before the Senate on Tuesday at the resumption of its inquiry into the controversy involving the use of a controversial anti-dengue vaccine in the government’s mass immunization program.