ES 100 Lecture Notes - Lecture 1: Filoviridae, Environmental Health, Improved Sanitation
Document Summary
Health: defined by who as a state of complete physical, mental and social well-being, not merely the absence of disease or infirmity. Disease: an abnormal change in the body"s condition that impairs important physical or psychological functions. Morbidity: illness: diet, nutrition, infectious agents, toxic substances, genetics, trauma, and stress all play roles. Environmental health: focuses on external factors that cause disease, including elements of the natural, social, cultural, and technological worlds in which we live: currently the global five year survival rate is over 95%. Disability-adjusted life years (dalys): a measure of premature death and losses due to illness and disabilities in a population. Sum of overall years lost to disability or illness plus years lost to early deaths in a population: chronic illnesses account for of the 56. 5 million total deaths worldwide and. Spread of infectious diseases: ebola is caused by a filovirus and is highly fatal.
