Effects of Antibiotics

In this week’s lab, you performed a Gram stain and used a microscope to visualize microscopic bacterial cells. While you may not use these techniques often in the workplace, understanding a bit about cell morphology and Gram nature can be critical to patient care. To test your understanding, you must select one Gram negative species and one Gram positive species from the list of common bacterial infections below and compare how those infections are treated using current scientific literature. Consider the following: are antibiotics used? If not, why not? What antibiotics are used, if any? What characteristics of these antibiotics allows them to be effective against this infection?
Gram negative infections Enterotoxigenic E. coli (ETEC) Gonorrhea (Neisseria gonorrhoeae) Chlamydia (Chiamydia trachomatis) Gastric ulcer (Helicobacter pylori) Meningococcal meningitis (Neisseria meningococci) Gram positive infections Listeriosis (Listeria monocytogenes) Clostridium difficile colitis Fried rice syndrome (Bacillus cereus) Impetigo (Staphylococcus aureus) Strep throat (Streptococcus pyogenes)
Research each infection thoroughly, examining and comparing the following:
• Signs and symptoms (1/4 of the credit): What are the characteristic symptoms you might notice that point to the diagnosis of these infections? Are certain populations more at risk than others? Virulence (1/4 of the credit): What makes these bacterial species cause illness? What about their cells could make them better at causing infection than other species? J Treatment (1/4 of the credit): Are antibiotics used to treat these infections? If so, which ones, and why are they effective? J Resistance (1/4 of the credit): Are either of these infections caused by bacteria with known i their Gram nature play a part in this resistance? How does resistance spread?

Sample Solution

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