In its latest weekly update, the health ministry's epidemiological office yesterday added to the four previously reported deaths from Guillain-Barre syndrome, a rare illness of the nervous system that can cause paralysis.
The U.S. Centers for Disease Control and Prevention says about one in 20 patients die.
Dominican health officials have reported 100 cases of Guillain-Barre in recent months.
Raquel Pimentel, director of the Dominican Republic's Epidemiology Center, said four of the six Guillain-Barre fatalities were people in their 60s. There was also an 83-year-old man and a 42-year-old woman. At least one of the patients was diabetic.
Zika is mainly a threat to unborn children and can cause microcephaly and other severe birth defects.
