Infectious Disease Epidemiology: The population-based study of infectious diseases, including sexually transmitted diseases, HIV, diarrheal pathogens, and tuberculosis . These scientists also perform research related to vaccines and vaccine efficac
Epidemiology was originally focused exclusively on epidemics of communicable diseases (3) but was subsequently expanded to address endemic communicable diseases and non-communicable infectious diseases.
Three major types of epidemiologic studies are cohort, case-control, and cross-sectional studies (study designs are discussed in more detail in IOM, 2000). A cohort, or longitudinal, study follows a defined group over time.
4. Infectious Disease Epidemiologist. An infectious disease epidemiologist works to understand the effects of diseases on a population . This can include studying new diseases like COVID-19 or researching established diseases like HIV, AIDS or influenza.
Epidemiology is the study of diseases in populations, investigating how, when and why they occur. The diseases studied are wide-ranging, including infectious diseases like coronavirus and non-infectious diseases like arthritis . People who work in this field are referred to as epidemiologist
Epidemiologists study outbreaks of diseases, the causes, locations, and how various communities are affected , utilizing relative information to aid in the prevention of future outbreaks.
There are two broad types of epidemiological studies:
1. Observational studies – we do not interfere in the process of the disease, but simply observe the disease and the associated factors. 2. Experimental studies – deliberate intervention is made and the effect of such intervention is observed.
The epidemiologic triangle is made up of three parts: agent, host and environment .
Assessing the community's health . Making decisions about individual patients. Documenting the clinical picture of the illness. Searching for causes to prevent future outbreaks.
Epidemiologists conduct two main types of analytic studies: experimental and observational . Experimental studies use a randomized selection process. A process based on chance is used to assign study subjects to different exposure groups.
Infectious disease epidemiology (which includes the epidemiology of viruses) is the study of the complex relationships among hosts and infectious agents . Epidemiologists are interested in virus spread or transmission, with or without disease.
Epidemiology was originally focused exclusively on epidemics of communicable diseases (3) but was subsequently expanded to address endemic communicable diseases and non-communicable infectious diseases .
By definition, epidemiology is the study (scientific, systematic, and data-driven) of the distribution (frequency, pattern) and determinants (causes, risk factors) of health-related states and events (not just diseases) in specified populations (neighborhood, school, city, state, country, global).