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Which body cells or tissues are affected by hemolysins, leukocidins,
hyaluronidase, kinases, tetanus toxin, pertussis toxin, and
enterotoxin?
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- Which virulence factor description among A-E is false? view Later A) O Adhesins: fimbriae or pili are examples of this B) O Invasins: virulence factor of intracellular pathogens C) O Kinases: breaks apart a blood clot; streptokinase is an example. D) O Hyaluronidases: dissolves connections between cells of a tissue E) O Coagulases: found in certain Staphylococcus pathogens; induces clot formation in the body F) O None of A-E is false; all are true 12 Review Later O Type here to search 13 * 12 * esc 立The parents of a 3-day-old male neonate are concerned by their child's condition. The child is irritable, has fever and blisters over most of his body, and peeling skin as seen in the attached image. Which of the following virulence factors produced by the most likely causal agent is responsible for this condition? Answers A - E A Alpha-Toxin B Beta hemolysin C Exfoliative toxin D Pyrogenic exotoxin E Toxic shock syndrome toxin O Question #6 attachment O .0Which of these statements about tularemia is false?a) It can be contracted from muskrats and bobcats.b) Biting insects and ticks can transmit the disease.c) The causative organism has growth requirements similar to those of E. coli.d) A steep-walled ulcer at the site of entry of the bacteria andenlargement of nearby lymph nodes is characteristic.e) It can be treated effectively with antibiotics.
- 14) When considering virulence factors, which class of virulence factor would be most likely to increase the severity of disease caused by the pathogen possessing the virulence factor, due to this class of virulence factor most likely causing the death of cells? A) extracellular enzymes C) anti-phagocytic factors B) toxins D) adherence factors 15) Which of the following classes of virulence factor is absolutely needed for nearly every infection? In fact, if the organism lacks this factor, it is most likely going to be avirulent (not disease-causing). A) extracellular enzyme B) adherence factor D) anti-phagocytic factor C) exotoxin 16) Which of the following is an iron-binding protein produced by pathogens to access the body's store of iron? A) ferritin B) siderophores C) hemolysin D) transferrin 17) The complement cascade and its by-products contribute to A) attracting phagocytes to sites of infection. B) triggering release of interferons. C) triggering inflammation. D) triggering…Which of the following is NOT true about strep throat?(a) It is caused by group A β-hemolytic Streptococcuspyogenes. (b) It can be acquired through droplet nuclei inhalationfrom active cases, healthy carriers, and family pets, aswell as from contaminated food, milk, and water.(c) Active cases can have inflamed and sore throat, swollenadenoids and lymph nodes in neck, pus-filled tonsillarlesions, fever, chills, headache, nausea, and vomiting.(d) Coughing and nasal discharge are common hallmarks ofstrep throat.(e) If immediate treatment with an antibiotic is not given,the patient has a risk of also getting rheumatic fever.Which statement concerning sporotrichosis is false?a) It is characterized by ulcerating lesions along the path of a lymphatic vessel.b) Person-to-person transmission is common.c) It can occur in epidemics.d) It can persist for years if not treated.e) The causative organism is a dimorphic fungus.
- Which statement made by the patient newly diagnosed with systemic lupus erythematosus indicates a need for further teaching about the course and management of this disease? a) "I will take my medication even if my symptoms improve." Ob) "I will not have my hair dyed, frosted, or permed unless I am in a period of remission." Oc) "I will report any fever to my healthcare provider immediately." d) "I will sunbathe as often as possible to ensure I get enough vitamin D."Contrast leishmaniasis with the two types oftrypanosomiasis in terms of causative agents, symptoms,and transmission vectors.Why is it so dangerous for a patient to have a systemic infection?
- Which of these statements concerning cryptococcal meningoencephalitis is true?a) It is caused by a yeast with a large capsule.b) It is a disease of trees transmissible to humans.c) It typically attacks the meninges but spares the brain.d) Person-to-person transmission commonly occurs.e) It is seen only in persons who are immunocompromised.Which of these statements about tetanus is true?a) It can start from a bee sting.b) Immunization is carried out using tiny doses of killed C. tetani.c) Those who recover from the disease are immune for life.d) Tetanus immune globulin does not prevent the disease.e) It is easy to avoid exposure to spores of the causative organism.Which of these statements about cat scratch disease is false?a) It is a common cause of chronic lymph node enlargement in children.b) It is a serious threat to individuals with AIDS.c) Cat scratches are the only mode of transmission to humans.d) It does not spread person to person.e) It can affect the brain or heart valves in a small percentage of cases.