Epidemiolgy.

• •Epidemiology is the branch of medical science that deals with the study of the distribution, patterns, and determinants of health and disease conditions in specific populations.
• Epidemiology involves analysing the causes and effects of diseases, understanding how diseases spread, identifying risk factors, and developing strategies for disease prevention and control. 
• •Incidence: Occurrence of new cases of disease, injury, or other medical conditions over a specified time period 
• •Prevalence: The proportion of a population with a disease or a particular condition at a specific point in time 
• •Mortality: Occurrence of death 
• •Mortality Rate: The frequency of death in a population over a specified time period 
• •Morbidity: The state of having a disease or a medical condition 
• How Epidemiology is used

  •Identify the cause of disease 

  •Determine the extent of disease 

  •Identify trends and patterns of the incidence of the disease 

  •Study the progression of disease

  •Plan and evaluate preventative and therapeutic measures for a disease or condition 

  •Develop public health policy and preventative measures