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Introduction Bacteria are single celled prokaryotic organisms that lack organelles and circular DNA They are much smaller and less complex than eukaryotic cells They are classified mainly but appearance and how they group together The main shapes of bacteria are rod-shaped which are called bacillus spherical called coccus rigid helical called spirillus and flexible helical called spirochete They are found most everywhere in the human body made of 70 trillion cells there are 700 trillion bacteria Most are not harmful but others can be parasitic Bacteria were not discovered before the time of microscopes There was no link between washing hands and infectious diseases Doctors would go from patient to patient spreading bacteria without knowledge of the effects of their indiscretion This was evident in many diseases including puerperal sepsis childbed fever which was spread by doctors going from cadavers to healthy expecting mothers During that time they believed poison was causing the deaths so they began to wash their hands and saw a sharp decrease in mortality rate However they did not know bacteria was the true cause of these deaths and it wasnt until Lister and Pasteur explained these happenings to the medical community before they began to wash their hands In todays society we are becoming more aware of the effects of bacteria this is apparent in the variety of antibacterial soaps that are available When we wash our hands particles become encapsulated in drops of water that are rinsed away Antibacterial soapABS differs from regular soapRS in that ABS intends to kill or inhibit bacteria while RS just washes it away In our voyage to SunMart we found that most ABS contain triclosan an anti-microbial agent approved for use in anti-gum-disease toothpaste and also used in deodorant soaps deodorants antiperspirants and body washes detergents dish washing liquids cosmetics and anti-microbial creams lotions and hand soaps It is thought to kill over 99 of bacteria but through evolution and other mechanisms bacteria
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