What is an etiological agent quizlet? Etiological Agent. an agent that causes the disease. Infectious Agent. organism that can cause the disease.
Full Answer
What is an etiologic agent?
an etiologic agents acts on a tissue or organ which causes damage or change in the structure and function of cells In a simple disease, the larger the number of infected cells the greater.... the level of tissue destruction and loss of function of the organ or tissue Multifactoral Diseases
What is an example of an etiological agent of disease?
Etiological agents of disease such as mad cow disease, scrapie, and kuru. ("transmissible spongiform encephalopathies") Staphylococcus aureus. leading cause of skin/soft tissue infections, toxic shock syndrome, and blood stream infections.
What are internal and external factors of etiologic agents?
more than one etiologic agent involved, presence of secondary infection, occurrence of 2 diseases, and animal inflicting self-trauma What are internal factors of etiologic agents? genetic factors, age, immune system What are external factors of etiologic agents? physical trauma, chemical compounds, infectious agents, environmental influences
What is the etiological agent of Ngu?
Etiological agent of NGU or nongonococcal urethritis venereal disease. Human Immunodeficiency Virus (HIV) Etiological agent of Acquired Immune Deficiency Syndrome(AIDS) Herpes simplex I Viral Etiological agent for oral herpes. Herpes simplex II Viral Etiological agent for genital herpes. Pneumocystis carinii
What is an etiological agent?
Etiologic agent means a viable microorganism, or its toxin, that causes or may cause disease in humans or animals, and includes those agents listed in 42 CFR 72.3, and any other agent that causes or may cause severe, disabling or fatal disease.
What is an example of an etiological agent?
Examples are the Ebola, Junin, and Nipah viruses. These substances are assigned the identification number of UN 2814 or UN 2900, as appropriate.
How many categories of etiological agents are there?
The agents that cause disease fall into five groups: viruses, bacteria, fungi, protozoa, and helminths (worms).
What does etiological mean?
1 : cause, origin specifically : the cause of a disease or abnormal condition. 2 : a branch of knowledge concerned with causes specifically : a branch of medical science concerned with the causes and origins of diseases.
What are examples of etiology?
Etiology is defined as the science of finding causes and origins. An example of etiology is knowing that some of the causes of high blood pressure are smoking, lack of exercise, stress and a diet high in salt and fat.
What is the etiological agent of tuberculosis?
Tuberculosis (TB) is a contagious disease caused by infection with Mycobacterium tuberculosis (Mtb) bacteria. It is spread through the air when a person with TB disease of the lungs or throat coughs, speaks or sings, and people nearby breathe in these bacteria and become infected.
How one can identify a microorganism as etiological agent of an infectious disease?
Microscopy may identify microorganisms. Immunofluorescence, immuno-peroxidase staining, and other immunoassays may detect specific microbial antigens. Genetic probes identify genus- or species-specific DNA or RNA sequences. Culture: Isolation of infectious agents frequently requires specialized media.
Who established the classification of etiological agents on the basis of hazard in 1974?
Classification of Etiologic Agents on the Basis of Hazard, 4th Edition, July 1974, U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, Office of Biosafety, Atlanta, Georgia 30333.