Microbiology / Principal Component Analysis / Medical Microbiology / Malaria / Ghana / Developing Countries / Infectious Diseases / Linear models / Diarrhea / Cities / Humans / Environmental public health / Risk factors / Conditional probability / Environmental quality / Public health systems and services research / Analysis of Variance / Risk Factors / Environment / ENVIRONMENTAL SCIENCE AND MANAGEMENT / Socioeconomic Factors / Developing Countries / Infectious Diseases / Linear models / Diarrhea / Cities / Humans / Environmental public health / Risk factors / Conditional probability / Environmental quality / Public health systems and services research / Analysis of Variance / Risk Factors / Environment / ENVIRONMENTAL SCIENCE AND MANAGEMENT / Socioeconomic Factors