Once I saw a child in my practice in Kenya.  Father told me that the child was lethargic, off his food etc.  The child was malnourished, had a large abdomen, and some fever.  He was given a drink of Piperazine, an antiworm medicine.  Next day, the proud father saw me, and told me the good news.  The child had passed 236 roundworms, he had counted them personally!
In our world, we do not even know the suffering of the children in poor countries.