Week7Discussion:PathogensHelloclassandprofessor, My name is Staphylococcus aureus, also known as (staph), and I live around the nose,mouth, genitals, anus and even in skin surfaces of humans. Besides humans I can also stay inanimals such as cats, horses and dogs. My most important site is the nose. When I stay within thesurface of the body, I am harmless unless I find a cut or wound where I can use to enter into

Lab13:BacteriaoftheDigestiveSystem LearningObjectives • Identifyhowselectiveanddifferentialmediacanbeusedintheidentificationofbacteriathatcaninhabit the digestive tract. • Identifythegrowthofsamplesofpresumedfecalbacteriafromrestroomswabs. Introduction The human intestinal tract is inhabited from birth by a variety of microorganisms acquired, at first, fromthe mother. Later, microbes are ingested in food and water, and from hands and objects placed in themouth. Many of those do not ...

Lab14:UnknownWorksheet LearningObjectives: • Applyknowledgeacquiredinthelaboratoryexercises • Predicttheidentityofanunknownbacteriainthegivencasestudy • Based on the two dichotomous keys given, answer the following case studies. For each casestudyyoushouldwrite1-2paragraphs,usingcompletesentences,astohowyouarrivedatyour conclusion.YoushouldtakeusstepbystepthroughtheprocessANDindicatehowyouruledoutothermicroorganisms.SimplysayingIusedthedichotomoustreeisn’tsufficient. Case Study 1: ...

BIOS 242 Week 6 Assignment Pathogens Chamberlain

Week6Concepts:EpidemiologyofInfectiousDiseases Skin,NervousSystem,andCirculatorySystemPathogens Prepare:SkinandNervousSystemPathogens • Whichofthefollowingisnotapriondisease? • Mostcasesofsepsisarecausedby . • Protectivefeaturesoftheskinincludeallofthefollowingexcept . • Whichofthefollowingisafebrilediseasecharacterizedbyarashand iscausedbyavirusthatcancrosstheplacentato cause serious fetaldamage? • Thetransmissionof oftenoccursviainfectedtooth,dentaltrauma,orsmallskinwounds. ...

Week6Discussion:Epidemiology RequiredResources Read/reviewthefollowingresourcesforthisactivity: • Textbook:Chapter18,19,20 • WeeklyConcepts InitialPostInstructions Some microorganisms like Staphylococcus, Streptococcus, Yesinia pestis, E. coli cancause diseases of different body systems. Let's investigate how the same pathogen isresponsible for different pathophysiological symptoms. First, choose a microorganismfoundinmultiplesystems.Then,describeyourpathogen'sroleindiseaseforonebo...

Lab11:BacteriaoftheSkin LearningObjectives: • Identifythegrowthofskinbacteriaondifferenttypesofselectiveanddifferentialmedia. • Identifypathogenicfromnon-pathogenicbacteria Introduction: Our skin forms the first line of defense. It has several characteristics that makes it an inhospitable environment for the growth of most microbes. Some of thesecharacteristics of skin include: high percentage of salt, low pH from 4-5.5, sebum, antimicrobial chemicals; an outer layer of dead skin cell...

Lab12:BacteriaoftheRespiratorySystem Introduction: Therespiratorysystemisdividedintotwoparts:theupperandlowerrespiratorysystems.Thelowerrespiratorysystemisanaxenicenvironmentbecauseof the cilia that lines the respiratory tract, alveolar macrophages and IgA antibodies found in the mucus. The upper part harbors a variety of microbiotasuch as Gram-negative bacteria Hemophilus, Gram-positive bacteria such as Staphylococcus aureus and diphtheroids that can cause opportunisticinfectionsleading toinf...