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

Humans & Drugs

Humans - create new drugs

Penicillin, kills bacteria

Drugs - become stronger when viruses adapt


Bubonic plague




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

Missuse and over use of antiobiotics = very dangerous

Multi drug resistence is a man - made problem

How Bacteria Causes Illness


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, which can lead to fever, aches, & sometimes dangerous drop in blood pressure (shock)

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

Normal Bacteria

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

Other Bacteria

Some Bacteria

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

Defense agaisnt Bacterial Disease

Diseases have started to decline

because of better hygiene & public health measures

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


Defense against Viral Diseases

Hygiene - limits spread

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

Vaccines - immune system to defend against actual pathogen

HIV - Retrovirus

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

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


Acetinobacter (Iraqbacter) - became resitant to commonly used antiobiotics

Penicillin became resistant in 1941

Vancomycin became resistant in 2002