Question

BIU 205 - NLV-B-TIH Fall 1 2019 HI, katnia signu urse Home Ch 14 HW Koch's Postulates: Understanding Disease - Foundation Figure 14.3 ③ 4 018 C This activity presents experimental results obtained when a suspected pathogen was tested and asks you to identify appropriate conclusions based on each scenario Arabbit was found to have floppy ear disease, which causes long ear infections. Its etiology (cause) is unknown Unknown Microorganism X from the infected rabbit's right ear is successfully isolated and cultured on laboratory growth media. The ear of a healthy laboratory mouse is then inoculated with isolated microorganism, and after a period of time, ne disease is observed. Which of the following statements accurately describe(s) the conclusion(s) that can be drawn from this experiment? Select all that apply. View Available Hint(s) Microorganism X modified its cell wall structure while being cultured and is no longer infectious to rabbits Healthy laboratory organisms rarely show signs and symptoms of infection and disease Microorganism X might not be linked to floppy ear disease, because the inoculated mouse remained healthy Microorganism X is the etiologic agent for floppy ear disease because it caused infection in the diseased rabbit A laboratory mouse might not be an appropriate susceptible host an experiment with a laboratory rabbit may be needed It is not possible to isolate and culture microorganism X in the laboratory because this microbe is found in nature Subm

Answer 1

The answers are as follow:

3. microorganism X might not be linked to floppy war disease because the inoculated mouse remained healthy. Because the organism isolated might not be associated with floppy ear disease and might be other organisms which are present along on the affected area.

5. A laboratory mouse might not be an appropriate susceptible host as experiment with a laboratory rabbit May be needed. It is a floppy ear disease and the ear of the mouse does not seem to be floppy, hence it is mandatory to check for the disease in rabbit itself rather than using a mouse.