The use of papaya tree leaves

There's a papaya tree miraculously grew outside my house..before this we had a rambutan tree (chopped) and suddenly a papaya tree appeared..my mom said she's going to chop it down if it's not gonna bear any fruits..but her friend told her that papaya tree leaves can actually cure dengue fever..how amazing..the other day, there was a Malay man asking my mom whether he can get some of the leaves and it's for his mom dengue fever..wow..now we know it is such a precious =)