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Health

Vaccines, Common Diseases, and Nutrition

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Vaccines

Train the immune system to recognize and fight pathogens (virus/bacteria)

  • Vaccines have weakened/killed antigen

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Vaccines

  • Antigens stimulate body to produce specific antibodies
  • Antibodies are produced by B-cells
    • Binds to receptor sites on antigens

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Herd/Community Immunity

  • Not everyone can get a vaccination
    • Infants, elderly, chronically ill
  • Vaccination of a group=less possible hosts for bacteria/virus=disease less likely to spread=helps protect those who can’t get a vaccine

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Nutrition

  • Goal=eat to produce glucose to make ATP
    • ATP powers…
      • resting metabolism
      • Thermoregulation in endothermic animals

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Excess Calories

  • Used for biosynthesis
    • Growth & reproduction
    • Stored energy deposits
      • 1st stored as glycogen in liver and muscles
      • Then stored as fat

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Essential Nutrients

  • Amino acids, fatty acids, vitamins, minerals
  • undernourishment=lacking calories
  • Malnutrition=lacking at least 1 essential nutrient (more common in humans)