Microorganisms and Disease What is common in catheters and ventilators? They bypass important defenses of the body Bacteria responsible for associated infections are usually susceptible to antibiotics They are used primarily in neonatal intensive care units They predispose patients to viral rather than bacterial infections They bypass important defenses of the body Bacteria responsible for associated infections are usually susceptible to antibiotics They are used primarily in neonatal intensive care units They predispose patients to viral rather than bacterial infections ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Type III secretion systems are used to inject "effector" proteins directly into a host cell. Salmonella uses a type III secretion system to help the pathogen to secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine activate T cells to proliferate and secrete cytokines survive the acid pH of the stomach survive within macrophages secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine activate T cells to proliferate and secrete cytokines survive the acid pH of the stomach survive within macrophages ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Pseudomembraneous colitis is precipitated by the use of certain antibiotics All of these caused by a spore-forming bacterium caused by a gram-positive bacterium precipitated by the use of certain antibiotics All of these caused by a spore-forming bacterium caused by a gram-positive bacterium ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease All infections do not cause fever and all fevers are not due to infections which of the following is an example of non-infections cause of fever? Chicken pox Rheumatic disease Malaria Typhoid Chicken pox Rheumatic disease Malaria Typhoid ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Lactoferrin helps to protect against pathogens by blocking sebum production lowering the pH facilitating the growth of normal flora sequestering Iron blocking sebum production lowering the pH facilitating the growth of normal flora sequestering Iron ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Immunization with which of the following toxoid induces high titer serum antibody, but does not protect from the corresponding disease? Botulism Diphtheria Tetanus Shigellosis Botulism Diphtheria Tetanus Shigellosis ANSWER DOWNLOAD EXAMIANS APP
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