What is an etiologic agent?
Etiologic agent means a disease -causing agent. Etiologic agent means a viable microorganism, or its toxin, which causes or may cause human disease, limited to those agents listed in 42 CFR 72.25 (c) of the regulations of the Department of Health and Human Services.
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 the characteristics of a hazardous agent?
Agent Classification The principal hazardous characteristics of an agent are: its capability to infect and cause disease in a susceptible human or animal host, its virulence as measured by the severity of disease, and the availability of preventive measures and effective treatments for the disease.
What is the etiological agent of blackleg?
chauvoei as the etiological agent of blackleg, this agent is also eventually responsible for gas gangrene in ruminants, so the high frequency reported in the present study is not surprising.
What is an etiologic 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. The term "etiologic agent" is synonymous with the term " infectious substance " as defined in 49 CFR ...
What is an infectious agent?
Infectious agent means any organism (such as a virus or bacteria) that is capable of being communicated by invasion and multiplication in body tissues and capable of causing disease or adverse health impacts in humans.
What is an authorized issuer representative?
Authorized Issuer Representative means the person at the time designated to act on behalf of the Issuer by resolution or written certificate furnished to the Corporation and the Trustee, containing the specimen signature of such person and signed on behalf of the Issuer by its Mayor or City Administrator. Such Certificate may designate an alternate or alternates.
What is a first lien administrative agent?
First Lien Administrative Agent means the “Administrative Agent” as defined in the First Lien Credit Agreement.
What is a carcinogen?
Carcinogen means a chemical classification for the purpose of risk assessment as an agent that is known or suspected to cause cancer in humans , including but not limited to a known or likely human carcinogen or a probable or possible human carcinogen under an EPA weight-of-evidence classification system.
What does global agent mean?
Global Agent has the meaning specified in the preamble, and any duly qualified and appointed successor or successors of U.S. Bank thereto.
What does "receiving agent" mean?
Receiving Agent means the receiving agent appointed pursuant to the Receiving Agent Letter.
What are the characteristics of an agent?
The principal hazardous characteristics of an agent are: its capability to infect and cause disease in a susceptible human or animal host, its virulence as measured by the severity of disease, and the availability of preventive measures and effective treatments for the disease.
What is a lethal agent?
Agents which are associated with serious or lethal human disease for which preventative or therapeutic interventions may be available (high individual risk but low community risk).
What is the WHO classification of laboratory risk?
The World Health Organization (WHO) has recommended an agent risk group classification for laboratory use that describes four general risk groups based on these principal characteristics and the route of transmission of the natural disease. The four groups address the risk to both the laboratory worker and the community.
What is risk group in biosafety?
World Health Organization Laboratory Biosafety Manual 3rd Edition 2004. Risk Group 1. Agents which are not associated with disease in healthy adult humans. (No or low individual and community risk) A microorganism that is unlikely to cause human or animal disease. Risk Group 2. Agents which are associated with human disease which is rarely serious ...
What does the Greek word "etiology" mean?
The Greek word 'etiology' refers to the cause of a disease. Learn the definition of etiology from its Greek origin and review a concrete example to demonstrate the etiology of a disease. Updated: 10/14/2021
What is the difference between etiology and intrinsic?
Identifying a specific etiology allows health care providers to provide specific treatment. Etiology, is the cause of a disease or the science that deals with such causes . Intrinsic, which means the cause is from inside the body, such as inherited conditions or an endocrine disorder like diabetes mellitus.
What is the second category of disease etiology?
Problems with immunity, such as allergies, which are an overreaction of the immune system.. The second category of disease etiology is extrinsic etiologies. This means the cause of the disease, or pathological change, came from outside of the body.
What is the third category of iatrogenic causes?
The third and final category of disease etiology is idiopathic, or of unknown cause. Remember, we are 'idio'-ts for not knowing the disease etiology.
What is the study of life called?
These words also refer to the scientific study of something. Biology is the study of life ( bio) and geology is the study of the earth or rocks ( geo ). A disease's etiology, or cause, generally falls into three main categories; intrinsic, extrinsic and idiopathic. First we will talk about intrinsic etiologies.
What is intrinsic etiologies?
First we will talk about intrinsic etiologies. Intrinsic means coming from within. Therefore, any pathological, or disease-causing, change that has occurred from inside the body has occurred as a result of intrinsic factors.
What is the scientific term for the study of a disease?
Etiology is the cause of a disease or the science that deals with such causes. The word etiology comes from the Greek etio-, which means 'causation' and -ology, which refers to the scientific study of something.
What is Tinea capitis?
The term tinea capitis is used to refer the infections caused by the dermatophytes on the hair scalp and hair skin.
Epidemiology
Etiological agents: Tinea capitis caused by anthropophilic Microsporum and Trichophyton species is a contagious disease endemic in many countries.
Clinical manifestations of Tinea capitis
The clinical manifestations of tinea capitis are varied and can range from mild scaling and hair loss to widespread alopecia, or less commonly to a highly inflammatory suppurating lesion termed a kerion.
Differential diagnosis of Tinea capitis
Tinea capitis is often difficult to differentiate from other causes of scaling (such as psoriasis and seborrhoeic dermatitis) or hair loss (such as alopecia areata and discoid lupus erythematosus).
lab diagnosis of tinea capitis
Specimens: Specimens from the scalp should consist hair roots, the contents of plugged follicles and skin scales. Excluding favus, the distal portion of infected hair rarely carry any fungus. Thus, cut hairs without roots are unsuitable for mycological investigation. One method which is useful for collecting material from the scalp is hair brush sampling..
Treatment of Tinea capitis
It is essential to have mycological confirmation before the initiation of the oral treatment.
