These conditions are neither new nor uncommon in Africa, Asia or India.
Peter Duesberg is a fine scientist, I have read his book and examined some of the scientific papers upon which it is based.
Certain events such as the cambrian explosion are such things.
His credentials are impeccable:
His opinion was that people were dying of lots of things, but not noticeably more than was ever the case.
He knew form the beginning that the world was going to be full of people who chose not to believe in him.