Agglutination reaction. Agglutination refers to a clumping that occurs when an antigen comes into contact with its corresponding antibody. This process mimics what happens in the body when antibodies cause antigens to agglutinate, promoting easy removal of the infectious organism.
Cytopathology is a branch of pathology involving the study and diagnosis of diseases at the cellular level using a light microscope. Traditionally the discipline has been divided into cervical cytopathology (commonly referred to as cervical cytology) and diagnostic cytopathology. Diagnostic cytology is mainly used for diagnosis of cancer in many parts of the body.
Epidemiology is the area of healthcare that deals with the incidence, distribution, and possible control of diseases, illnesses and other factors relating to health. Epidemiology is a field where trained epidemiologists study patterns of frequency and the causes and effects of diseases in human populations. Epidemiology provides the scientific footings for evidence-based medicine and allows placement of strategies for improvement in public health.