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FB study guide - Microbes Epidemic disease spreads in a...

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Microbes Epidemic- disease spreads in a certain area Endemic- disease with low numbers of cases in an area Pandemic- epidemics that are wide spread and reach distant parts of the world Epidemiology- study of disease epidemics and factors that influence them over time Pathogen- any disease causing organism Pathogenic Microorganisms Contracted by inhalation: small pox, hantavirus, anthrax, plague Contracted by contact: ebola, marburg virus, lassa fever, tularemia, brucellosis Contracted by ingestion: anthrax, salmonella, typhoid, cholera, tularemia, brucellosis, botulism Contracted by mosquito: west nile Contracted by fleas: plague Contracted by tick bites: tularemia Virus infects cells of organisms genetic material surrounded by protein shell Helical, Icosahedral, Enveloped, Complex types Reproduces by using host cell to duplicate selves. 21 Families 6 possess DNA genome -Poxviruses -Paravoviruses -Adenoviruses -Herpes virus – chicken pox -Hepadnavirus – hepatitis B 15 RNA genome Bacteria Unicellular and prokaryotic Shapes bacilli- rod shape Cocci- spherical Vibro- comma-shaped Spirilla- curved walls Forms spores Means of energy aerobic- needs oxygen anerobic – no oxygen Endospores- produced by bacteria that can withstand environmental and chemical stress Reproduces asexually Viral v. Bacterial Viruses more smaller Viruses need a host to reproduce; bacteria easier to produce
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Antibiotics don't work on viruses Geneva Protocol- prohibits poison gas and bacteriological weapons in war Biological Weapons Convention- bans development, production, and stockpiling of biological and toxin weapons Chemical Weapons Convention- same as BWC except for chemical weapons Biological Warfare forms deliberate poisoning of food and water use of microorganisms in a weapon system use of biologically inoculated fabrics CDC Bioterrorism Agent Categories Category A- easily spread from person to person high death rates, potential for major public health impact might cause public panic or social disruption require special action for public health preparedness Diseases Anthrax Botulism Plague Smallpox Tularemia Viral hemorrhagic fevers
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This note was uploaded on 04/25/2011 for the course SOC 261 taught by Professor Barbaraweekley during the Fall '10 term at Saint Louis.

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FB study guide - Microbes Epidemic disease spreads in a...

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