Three Types of Foodborne Contaminants 3-2 Biological Chemical Physical.
Types of Biological Disasters
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Transcript of Types of Biological Disasters
![Page 1: Types of Biological Disasters](https://reader034.fdocuments.in/reader034/viewer/2022042707/58ed86b61a28ab69138b45bb/html5/thumbnails/1.jpg)
TYPES OF BIOLOGICAL AGENTS
•There are three categories of biological agents potential enough to cause mass casualties (Center for Disease Control & Prevention). •Category A, B & C •Those in category A have the greatest potential for fear and disruption and most significant public health impacts.
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CATEGORY - A•Easily disseminated or transmitted person-to-person•High mortality•Require special action for public health preparedness•Viruses: Variola major (smallpox), Filo viruses (Ebola, Marburg), Arenaviruses (Lassa, Junin)•Bacteria: Bacillus anthracis (anthrax), Yersinia pestis (plague), Francisella tularensis (tularemia)•Toxins: Clostridium botulinum toxin (botulism)
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CATEGORY – B
•Moderately easy to disseminate•Moderate morbidity and low mortality•Require improved diagnostic capacity & enhanced surveillance•Viruses: Alphaviruses•Bacteria: Coxiella burnetii (Q fever), Brucella spp. (brucellosis), Burkholderia mallei (glanders)•Toxins: Rinus communis (caster beans) ricin toxin, Clostridium perfringens episolon toxin, Staphylococcus enterotoxin B
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CATEGORY - C
•Viruses: Nipah, hantaviruses, tick borne hemorrhagic fever viruses, tick borne encephalitis viruses, yellow fever•Bacteria: Multi-drug resistant Mycobacterium tuberculosis