Microbiology Answers

Write an essay writing.

Topic: Choose any virus that causes disease in humans and discuss its origins, modes of transmission, target binding cells in the human body and how does it affect the human.

List and explain 2 precautions that you need to take while performing the membrane filtration test.

What other samples (apart from water) can be tested using this method; name 4 samples/products?

What selective-differential media can be used for one-step detection of the following pathogens from water samples using the membrane filtration technique:

- Coliforms

- Salmonella

- Pseudomonas

The standard pore size of filter paper used for microbiological analysis of water is 0.45 micron. Why is this the most popular choice?

1. What is one advantage of using electron microscopy over the DFA? What is one disadvantage?

1. Complete the table below and then describe what the EM results indicate about what might is causing this disease?

Cell line A

Cell line B

Cell line C

Patient 1

Patient 2

Patient 3

Patient 4

What is Your Conclusion?

Time is running out-- we need your recommendation now! Consider all the results that were presented in this case.

1. What is pathogen causing the Fatal Flu? Explicitly state what you think is causing the outbreak and present evidence that supports your hypothesis. Your argument must refer to your results and
2. include information from the references as needed.

1. Do you think these are conclusive results? What tests would you recommend next to conclusively prove the etiological agent of this outbreak?