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- A patient 44 years has recently returned from Africa infected with malaria. His blood smear indicates multiple round structures, the causative agent is a. Enetrobius vermicularis b. Toxoplasma gondii c. Plasmodium d. SchistosomaA young Honduran female patient presented with a huge cutaneous ulcer involving the right shoulder. She had been involved in an agricultural clearance project in the interior of the country. a. What parasite/s might cause such a lesion? b. How would you diagnose this infection? c. How is this infection usually acquired? d. How do these parasites evade the immune response?Which of the following is not associated with H. infl uenzae infections? a. fever b. fl u c. stiff neck d. headache
- Medications used to treat protozoal infections are commonly referred to as _______________. A) Quines B) Azoles C) Sulfa Drugs D) PenicillinsWhooping cough is caused by which organism?(a) Corynebacterium diphtheriae(b) Staphylococcus epidermidis(c) Staphylococcus aureus(d) Bordetella pertussis(e) Streptococcus pyogenesHemoflagellates are transmitted bya. mosquito bites b. insect vectors c. bug feces d. contaminated food
- 5. Contact precautions are required for patients with a. all of these b. respiratory syncytial virus c. Clostridium difficile c. associated diseases. d. infections caused by multidrug-resistant bacteria. 6. All of the following are algae except a. dinoflagellates. b. desmids. c. sporozoa. d. diatoms. 7. Typhoid fever is caused by a species of: a . Escherichia b. Campylobacter c. Shigella. d. Salmonella 8. At the end of the Gram -staining procedure , Gram -positive bacteria will be: a. blue to purple b . pink to red c. orange. d. green 9. Which one of the following types of culture media is selective and differential? a. Phenylethyl alcohol agar b . Blood agar c. Thayer-Martin agar d. MacConkey agar 10. Which one of the following methods of antimicrobial susceptibility testing combines some of the properties of two other methods and involves adding a plastic strip to the agar? a. Gradient diffusion method b. Agar macrodilution method c. Disk diffusion method d. Broth…which characteristic of clostridium botulinum causes harm to adults? a.production of toxin b. poisonous endospores c. rapid proliferation of bacteria in intestinal tracts d. all of the above caus harm to adults e. non of the above cause harm to adultsSeveral persons working in an exercise gym acquired an acute diseasecharacterized by fever, cough, pneumonia, and headache. Treatmentwith erythromycin cleared it up. The source was never found, but anenvironmental focus was suspected.a. What do you think might have caused the disease?b. People in a different gym got skin lesions after sitting in aredwood hot tub. Which pathogen could have caused that?
- Which of the treponematoses is/are not (an) STD(s)?a. yaws b. pinta c. syphilis d. both a and b36) Giardiasis is a common protozoal infection in the United States. Much like malaria, it's symptoms are commonly characterized as ____________________. A) Sinusitis B) Respiratory Depression C) GI Upset D) Localized skin rashWhich of the following is known as a “hookworm?” a. Trichnella spiralis b. Entamoeba histolytica c. Necator americanus d. Enterobius vermicularis e. Schistosoma spp.