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Microbes
 Understanding
  Transmission
  Symptoms
  Diagnosis
  Treatment
   How Medicines Can Help
   How Your Immune System Can Help
  Prevention
  Kinds of Infections
  Emerging and Re-emerging Microbes
 Research


Microbes

How Your Immune System Can Help

Your immune system has an arsenal of ways to fight off invading microbes. Most begin with B and T cells and antibodies whose sole purpose is to keep your body healthy. Some of these cells sacrifice their lives to rid you of disease and restore your body to a healthy state. Some microbes normally present in your body also help destroy microbial invaders. For example, normal bacteria, such as lactobacillus in your digestive system, help destroy disease-causing microbes.

Other important ways your body reacts to an infection include fever and coughing and sneezing.

Fever

Fever is one of your body’s special ways of fighting an infectious disease. Many microbes are very sensitive to temperature changes and cannot survive in temperatures higher than normal body heat, which is usually around 98.6 degrees Fahrenheit. Your body uses fever to destroy flu viruses, for example.

Coughing and sneezing

Another tool in your immune system’s reaction to invading infection-causing microbes is mucus production. Coughing and sneezing help mucus move those germs out of your body efficiently and quickly.
Other methods your body may use to fight off an infectious disease include

  • Inflammation
  • Vomiting
  • Diarrhea
  • Fatigue
  • Cramping

See Also

  • Glossary of Terms
  • View a table of diseases and infections
    caused by microbes
  • A Microbe Hunter On Call to the World
  • Emerging Infectious Diseases
  • Related Links

    View a list of links for more information about microbes.

    NIH Launches Human Microbiome Project—Dec. 19, 2007

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    See Also

  • Glossary of Terms
  • View a table of diseases and infections
    caused by microbes
  • A Microbe Hunter On Call to the World
  • Emerging Infectious Diseases
  • Related Links

    View a list of links for more information about microbes.

    NIH Launches Human Microbiome Project—Dec. 19, 2007