Save Little Huzaifa’s Life

Hello there,
My name is Aman Khan and I live in Karachi. I am working in an office part time and studying at the same time. Thanks to God I am happy with my life and I am really thankful to God for everything.
I have a nephew named Huzaifa who live in the same city as mine, I met him 4-5 months ago and he was really healthy and never got any serious illness or problems. A week ago I got to know that he is in hospital and he is in not well. When me and my family got to the hospital we got to know that a unknown virus went in his nose and now is inside his brain and he is in coma, the doctors of that government hospital are not even able to explain what happened to him. According to his mother, he was playing with toys and out of nowhere he went unconscious and was not able to breath and even blink, doctor said when they reached hospital his heart was not working. Nothing weird happened to him in past, he was a complete normal kid.
As my cousin and her husband are from a lower middle class family they can't afford to go to a better hospital for a complete treatment, he is left in a semi ICU in the govt hospital and doctors are telling us to pray for his life.

We went to the best hospital in our city AghaKhan Hospital and explained our issue, and they have advised us to admin Huzaifa ASAP, they have told us it would cost $2000 everyday ICU charges + Treatment expenses.
I am asking for help for this poor kid, who was completely fine and the cutest kid ever and now not even able to blink. he needs your help!