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Trypanosoma cruzi infection, or Chagas disease, was discovered more than 100 years ago by Carlos Chagas. Although the infection kills more than 15,000 people each year, it is still classified as a neglected tropical disease. Today, this disease affects eight million people in 21 Latin American countries and, due to immigration, is also present in non-endemic countries. In recent years, the size of the immigrant population with chronic imported forms of Chagas disease has increased in Spain. In addition, several cases of congenital transmission have been reported. Some patients have severe infection and require specialized treatment such as pacemaker implantation or even heart transplantation, representing a considerable clinical, social and economic burden, particularly in areas with a large immigrant population. Since the 1960s, the only drugs available for the etiological treatment of this infection have been benznidazole and nifurtimox. Although new, more effective and better tolerated compounds are urgently needed, treatment with these trypanocidal drugs is recommended in both the acute and chronic stages of Chagas disease. New strategies for diagnosis and infection control in chronically infected patients have recently been reported, allowing the effectiveness of treatments to be assessed. |
