Answer:
Poverty, lack of prevention and medical care
Step-by-step explanation:
Africa constitutes about 390 million people living in extreme poverty. Scarcity of money leads to unprotected sex and vulnerability to infections. Children can be protected from mother-to-child transmission but inadequate health systems of Africa make it even worse. There are about 650,000 children with AIDS in Africa. There are 1000 infected infants born every day in Africa.
Reasons:
1) Poverty
2) Inadequate medical care
3) Lack of prevention and education
4) Taboo and stigma
5) Prostitution