Interactions between Humans & Microbes

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Interactions between Humans & Microbes by Mind Map: Interactions between Humans & Microbes

1. How Bacteria Causes Illness

1.1. Pathogens

1.1.1. Bacteria & other microorganisms that cause disease Causes disease by producing 1 of 2 types of bacteria poisons ONE TYPE: poisionious proteins secreted by bacteria cells ONE TYPE: poisonous proteins secreted by bacterial cells ONE TYPE: poisoonous proteins secreted by bacterial cells 2nd TYPE: not a cell secretion but a componenet of bacterial cell wall 2ND TYPE: not a cell structure but a component of bacterial cell wall

1.1.2. Most people retain healthy because the body's defense prevents growth of pathogens Occassionaly the balance swtiches = body becomes ill

1.2. Normal Bacteria

1.2.1. some normal bacteria of the body can make you sick lack of sleep poor nutrition other disease

1.3. Other Bacteria

1.4. Some Bacteria

1.4.1. may cause disease by invading tissues & destroying cells Pathogen that causes Tuberculosis this destroys white blood cells

2. Defense against Viral Diseases

2.1. Hygiene - limits spread

2.2. Immune System - provides basis for preventing certain viral and bacterial infections occuring at all (major weapon)

2.3. Vaccines - immune system to defend against actual pathogen

3. HIV - Retrovirus

3.1. Aids - serious viral disease it attacks cells of the immune system

3.2. Retrovirus - reverse usual DNA to RNA flow of genetic info. in process called transcription

4. Humans & Drugs

4.1. Humans - create new drugs

4.1.1. Penicillin kills bacteria

4.2. Drugs - become stronger when viruses adapt

4.2.1. Tuberculosis

4.2.2. Bubonic plague

4.2.3. Influenza

4.2.4. Chalara

4.2.5. Chalara

4.3. In the US nearly half of the drugs are unnecessary prescribed or wrong

4.3.1. Missuse and over use of antiobiotics = very dangerous

4.4. Multi drug resistence is a man - made problem

5. Defense agaisnt Bacterial Disease

5.1. Diseases have started to decline

5.1.1. because of better hygiene & public health measures

5.1.2. Human body can protect itself against infection even when in contact with disease - causing bacteria skin, mucous lining of mouth, nose, & digestive system provide physical barrier to bacteria

5.2. Antiobiotics

6. Superbugs

6.1. Acetinobacter (Iraqbacter) - became resitant to commonly used antiobiotics

6.2. Penicillin became resistant in 1941

6.3. Vancomycin became resistant in 2002