(P) Lesson 2: Epidemiology Flashcards
The study of disease, injury, and death
Epidemiology
“The study of the distribution and determinants of health-related states and events in specified populations” whose definition does this belong to?
CDC
“The study of the distribution and determinants of health-related states or events and the application of this study to control health problems” whose definition does this belong to?
WHO
Refers to descriptive epidemiology (when, where, and who)
Distribution
Refers to incidence, prevalence, and mortality rates
Frequency
Refers to time, place, and person
Pattern
Refers to analytic epidemiology; deals with causes, risk factors, and modes of transmission (why and how)
Determinants
Refers to the agents
Causes
Refers to exposure to the agents
Risk Factor
Veni, Vidi, Vici
”I came, I saw, I conquered”
Discovered the theory of the four body humors produced within the body
Hippocrates
Discovered the “seeds of disease” and named “syphilis” in a poem
Girolamo Fracastoro
Stated that disease is called as an external thing referred to as an “ens” which could attack any organ of the body
Paracelsus and JB van Helmont
Person first to demonstrate procedures on microorganisms
Antoni Van Leeuwenhoek
Theory coined by Louis Pasteur; said that germs can causes diseases and developed a vaccine and treatment for anthrax and rabies
Germ Theory
Refers to how one germ can cause one type of disease
Biological Specificity
His postulates included:
- perfected growing pure bacterial colonies
- developed autoclaves
- introduced photography for what he had seen in his microscope
- identified agents that caused diseases such as tuberculosis and cholera in 1884
Robert Koch
He developed the “antiseptic” surgery which developed into “aseptic” surgery which he used carbolic acid dressings to disinfect surgical wounds
Joseph Lister
He studied cholera and concluded that it was not transmitted through miasma but through contaminated water
John Snow
He discovered the nature of viruses and their relationship to cells in the body
Martinus Beijerinck
- Delved into the fields of microscopy, tissue staining, embryology, chemotherapy, and immunology
- Developed the theory of the chemical nature of antigens and antibodies (lock and key)
Paul Ehrlich
He developed a polio vaccine using a weaker strain of the virus
Albert Sabin
He coined the term “prion” and explained how these misfolded proteins could cause disease
Stanley Prusiner
He worked on the retrovirus for HIV
Francoise Barre-Sinoussi
A concept in epidemiology referring to differences in disease and injury occurrence for different populations
Population and Comparison
A concept of disease occurrence which refers to the epidemiological triad or triangle
Causation
The epidemiological triangle consists of what 3 factors?
Agent, Environment, and Host
Widely used method which describes the basic epidemiology of a disease; data is collated by time, place, and person
Descriptive