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Disaster Advice Glossary
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Disaster recovery and restoration can be veiled in mystery to the many who have not undertaken specific training. This glossary explains technical terms to assist both report writing and the understanding of those technical terms so often misunderstood.
Definition
| Allergens: |
Those substances that act as an antigen (e.g. pollens, dander, dust mite proteins) causing the formation of antibodies. Health and Saftety Note: Allergens that form antibodies affect certain persons to certain substances. Allergens may cause moderate or severe skin reaction, respiratory impairment and other health reactions. Allergens even in extremely low doses may still cause severe health reactions in some sensitized persons by hypersensitivity. See particulate Matter |
| Allergic Sensitizers: |
Certain chemical and allergen producing substances that act as antigens to produce an allergic reaction after repeat sensitizing exposures to the skin or respiratory system. |
| Animal Dander: |
Small and microscopic size flakes of shed animal skin and hair (including body oil, urine and feces). Education Note: Animal dander produce allergens and persons susceptible to certain animal dander have lgE antibodies to such allergens as cat FEL d-l (Duffort et al,. 1991). Persons suceptible to animal dander will most likely develop symptoms rapidly when entering a house where animals like cats are present, since this allergen is constantly airborne (Van Metre et al., 1996). Although there are significant differences in allergen content in homes with or without pets, many homes that are normally without a cat, nonetheless contain surprisingly high levels of Fel d-l in household dust (Wood et al., 1998). It is felt that the homes not having animals present, the allergen from animals is brought into the house on the clothes of the inhabitants . Levels of cat allergen, for example, as low as 2 ug Fel d-l/g of household dust, commonly onserved in dust sample studies of houses without cats, may be a risk factor for sensitization to Fel d-l (Wood et al.,1998). See Antigen |
| Antigen: |
Any substance, chemical, particle or toxin that causes the formation of an antibody. b) An immune system response from a chemical or biological substance including fungi and bacteria that react and are capable of producing allergic reaction in humans. See Allergic Reaction, Animal Dander, Endotoxin, Myotoxin, Toxin |
| Sensitisation: |
A process by which the immune system response is stimulated on its first being exposed to an antigen. Health Note: The consequence is the bodys immune system is preparing itself for a stronger response upon re-exposure to the same antigen, as in a hypersensitivity reaction. See Allergens, Allergies, Hypersensitivity pneumonitis. |
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