4: Descriptive Epidemiology Last updated Jul 26, 2024 Save as PDF 3.8: Measuring Agreement 4.1: Host Factors Page ID96647 S. Wayne Martin, Alan H. Meek, Preben WillebergVirginia Polytechnic & State University via Virginia Tech Libraries' Open Education Initiative ( \newcommand{\kernel}{\mathrm{null}\,}\) 4.1: Host Factors4.2: Standardization of Rates4.3: Immunity in Populations4.4: Environmental Factors4.5: Abiotic Elements of Environment4.6: Biotic Elements- Flora and Fauna4.7: Agents of Disease4.8: Temporal Factors4.9: Disease Occurrence in Absolute Time4.10: Age and Time Interrelationships