Those at the bottom of a socially stratified world are vulnerable to economic shocks, impoverishing effects of illness and co-morbidity—with one underlying condition (., malnutrition or HIV/AIDS) making the development of another more likely (., diarrhea or TB). Increasingly, child morbidity and mortality is seen as a function of co-morbidity, with malnutrition coinciding with other conditions such as measles, acute respiratory infection (ARI) and diarrhea. In the realm of maternal health, co-morbidities naturally exist as well, though the programmatic implications are different for maternal mortality than for child mortality. Some evidence points.
