MIC 205 A questions with correct answers

Escherichia coli CORRECT ANSWER Gram-negative rod-shaped bacteria periplasmic space with a peptidoglycan layer can perform complicated metabolism to maintain its cell growth and cell division commonly found in lower intestines of human and mammals UTI, diarrhea that is acute and severe, either bloody or not bloody, stomach cramping, vomiting, loss of appetite, abdominal pain, and fever. Hantavirus CORRECT ANSWER *haemorrhagic fever* with renal syndrome (HFRS) monomeric, segmented and consists of three segments of circular, supercoiled The shape of the virion varies from spherical to pleomorphic and has no protrusions man gets infected through the respiratory route via the aerosols of virus particles excreted by rodents in their lungs, saliva, urine and faeces. damage to capillaries and small vessel walls, resulting in vasodilation and congestion with hemorrhages. Staph/Strep Toxic Shock Syndrome CORRECT ANSWER • Shock - generalized/systemic inflammaLon - Fever, low blood pressure, diffuse rash • TSS is caused by the Staphylococcus aureus and Streptococcus pyogenes • These bacteria produce a toxin called TSS toxin-1, which is a superanLgen (p439)that cross links host MHC II to T cells in the absence of anLgen *rely tampons*