Scientists are getting closer to a Chagas disease vaccine, something many believed impossible only 10 years ago. Research from the Sealy Center for Vaccine Development at UTMB has resulted in a safe vaccine candidate that is simple to produce and shows a greater than 90 percent protection rate against chronic infection in mice. “This signals a scientific breakthrough — unprecedented vaccine efficacy for a common parasitic disease with no cure for chronic sufferers,” said lead author Nisha Garg.