What percent of deadly diseases are incurable?

It is difficult to determine the exact percentage of deadly diseases that are incurable as it depends on various factors such as the definition of "incurable," the timeframe considered, and ongoing advancements in medical research. However, according to the World Health Organization (WHO), there are several diseases known as "Neglected Tropical Diseases" (NTDs) that disproportionately affect people in poverty and are considered incurable.