When Pathogens destroy Normal flora, it can lead to: a. Large inoculum b. Physical destruction of host cells c. Infection d. All of the above

Which type(s) of microbes could we expect to mind on our skin a. Transient microbiota b. Normal microbiota c. Opportunistic pathogens d. None of the above e. All of the above

Different strains of Streptococcus pyogenes have different virulence factors, giving these microbes much versatility. Virulence factors include which of the following? Choose one or more: A.A capsule that, when thick, will help the organism avoid phagocytosis by macrophages B.A cell wall containing lipoteichoic acid, thought to facilitate adherence to pharyngeal epithelial cells C.Enzymes that lyse blood cells (streptolysins) D.The production of several endotoxins called streptococcal pyogenic endotoxins (SPEs)

Explain the actions of each of the following that make them virulencefactors:a. hemolysins b. leukocidin c. kinases d. hyaluronidase e. coagulase