25). Attenuated is a pathogen is NOT infectious. 

16). Which of the following correctly describes infectious dose-50 (ID50)?

17). A healthy gut microbiome contains diverse species where benign microbes help keep pathogenic members in check. Which of the following could tip the balance from normal microbiota to a disease state?

8). A newly emerged infectious disease whose pathogen cause has not yet been identified is lethal in more than 90% of cases. Epidemiological evidence suggests that this pathogen is transmitted only through direct contact with the blood of ill or recently deceased patients. Patient blood and tissue samples would best be handled at BSL-2 until more information can be learned about the pathogen.

20). A fecal transplant, or fecal microbiota transplantation (FMT), is a highly effective procedure (80-90% success rate) that transfers healthy donor stool into a patient’s colon to restore gut flora, primarily used to treat recurrent Clostridioides difficile. 

6). Pathogens can obtain iron from the body using

19). Organisms that interact and live together on a permanent basis are in a relationship termed:

10). Your patient is suffering from severe diarrhea caused by a Clostridioides difficile infection. Which of the following would be a special type of contact precaution to prevent spread of the organisms?

Amoeboid motion is sliding movement observed in some protists accomplished by  ________.

Long, branching fungal filaments are called ________.