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Bacteria v. Viruses
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Archaebacteria live in extreme environments such as swamps, hydrothermal vents deep in the ocean, acidic thermal springs in the ground, and extremely salty water.
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Eubacteria live in most habitats
some cause diseases such as strep throat and pneumonia Cyanobacteria – autotrophic Escherichia coli - heterotrophic
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Viruses v. Bacteria Bacteria- living microorganisms
A. Some are pathogenic (cause diseases)-+ Examples Tetanus Neissaria gonnorhea Strep throat- Streptococcus pyrogenus Anthrax- Bacillus anthracis Pneumonia B. Some are very useful Decomposing dead things Breakdown garbage in landfills E.coli
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Viruses- not considered living organisms; have to be inside a host cell to reproduce
A. contain DNA and RNA B. diseases caused by viruses HIV, chicken pox, Herpes, Flu (influenza) C. Two ways of infecting cells Lytic cycle Lysogenic cycle
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Viral Treatments For viral infections, you treat the symptoms
Use vaccines and antiviral drugs for severe infections.
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Avian Flu Virus
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Symptoms Symptoms in humans Fever, cough, sore throat Eye infections
Pneumonia Severe respiratory diseases
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Vaccines Began testing vaccinations in April, 2005
Vaccinations must prove to be safe and effective Vaccinations are hard to create Virus mutates quickly
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