Pertussis‚ also known as whooping cough‚ is a highly contagious respiratory tract infection of humans that is caused by a gram-negative bacterial pathogen Bordetella pertussis. These bacteria bind to ciliated cells that line the respiratory tract by obstructing their ciliary movement and killing the cells. B. pertussis can be transmitted from one person to another through respiratory droplets such as coughing‚ sneezing‚ or sharing a breathing space. B.pertussis host range can be found only in humans
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Urinary tract infections refer to the presence of pathogenic microorganisms within the urinary tract and its classification is usually done on the basis of infection sites:-bladder [cystitis]‚ kidney [pyelonephritis]‚ or urine [bacteriuria] and also can be asymptomatic or symptomatic (Quigley R 2009‚ Schlager TA2001). They are among the most commonly acquired bacterial infections and they account for an estimated 25-40% of the nosocomial infections (Bagshaw SM‚ Laupland KB 2006). Urinary tract infection
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HEPATITIS A A food-borne illness is any illness resulting from the consumption of contaminated food‚ pathogenic bacteria‚ viruses‚ or parasites that contaminate foods (Wikipedia‚ 2012). Foodborne illness usually arises from improper handling‚ preparation‚ or food storage. Each year in the United States between 6.5 to 33 million cases of illness are attributed to food-borne illness and 9‚000 people die as the result.(Abgrall & Misner‚ 1998) Hepatitis A is a common food borne illness‚ which can
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In late 2015‚ two outbreaks appeared in America. In the first‚ larger outbreak‚ 55 people infected with Escherichia coli O26 (STEC O26). 55 people are from 11states. 21 ill people were hospitalized. In the second outbreak‚ 5 people from 2 states infected with STEC O26 and 1 people was hospitalized (CDC‚ 2016). FDA along with CDC and local public health official investigated two outbreaks and found that most of the victims ate Chipotle Mexican Grill before. They think two outbreaks may relate to Chipotle
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infected particles. Some people have strong enough immune systems that quickly destroy the bacteria once they enter the body. Others will develop latent TB infection and will carry the bacteria but will not be contagious and will not present symptoms. Still others will become immediately sick and will also be contagious. What are the symptoms of tuberculosis? Most people who become infected with the bacteria that cause tuberculosis actually do not present symptoms of the disease. However‚ when symptoms
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report is worth 100 points towards your final lab grade. Each Q is worth 2 points unless otherwise noted. Also‚ per the Honor Code‚ this work must be your own. This is due Mon. 10/8 at 11:59 PM. The theme of this lab is the identification of unknown bacteria and viruses in a lab. Selective vs. Differential Media Selective vs. Differential Media Use the following website to help you answer Q 1 and 2 http://www.highlands.edu/academics/divisions/scipe/biology/labs/rome/selectivedifferential.htm
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selectively toxic to pathogenic organism (or cancer) but harmless or minimal effects on host * Infections organisms: * Prokaryotes – cells without nuclei – bacteria * Viruses – which utilise biochemical machinery of host * Cancer cells – eukaryotic cells similar to host cells Bacteriostatic vs. Bacteriocidal * Bacteriostatic – antibiotics that inhibit growth and reproduction of bacteria without killing them * Relies on immune system to destroy bacteria * Bacteriocidal
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M.R. Popoff (ed)‚ Academic Press‚ San Diego‚ CA. 2. Madigan‚ M.T.‚ and J.M. Martinko. 2006. Brock biology of microorganisms. p. 707 and 781 11th ed. Prentice Hall‚ Upper Saddle River‚ NJ. 3. Rollins‚ D.M. and S.W. Joseph‚ Accessed 5 April 2011‚ Pathogenic Microbiology‚ http://ww w.life.umd.edu/classroom/bsci424/PathogenDescriptions/Enterococcus.htm‚ August 2000. 4. Winfrey‚ M.R.‚ M.A. Rott‚ S.J Anglehart‚ W.R. Schwan‚ B.C. Taylor‚ D.J. Grimes‚ and R.M Burns. 2010. Laboratory manual for fundamentals
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01207030/JANUARY/F 2006 SECTION A Answer ONE question from this section. 1. (a) (i) Describe the processes involved in photosynthesis. (6 marks) (ii) Identify TWO characteristics of the leaf that make it an effective photosynthetic organ and state how EACH characteristic mentioned facilitates photosynthesis. (4 marks) (iii) How is it possible for a plant to survive after losing all of its leaves? (2 marks) (b) The phenomenon of swarming occasionally occurs in some insect species‚ such as locusts
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Milk is a great blessing of nature. It is a complete food from the few months baby to the elder person. It provides the entire elements needed by a body for its development and growth such as protein‚ water‚ carbohydrates‚ minerals‚ fat and vitamins. It not only provides power but also enhances immunity to fight against many different types of pathogens. It is necessary for the growth of bones and for the blood clotting. It fulfills body’s calcium requirement. 100g of cow’s milk contains 3.9g fat
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