Project #36710 - Assignment

For questions 1-6, answers should be 4 paragraphs each (20-25 sentences).

1. The local health department receives reports of a number of ill employees in an office after an office potluck. Roughly fifty people are ill among the employees, and they are reporting mostly diarrhea and vomiting. Although a couple people report feeling feverish, no one has reported having a measured fever. Most of the people report becoming ill about 36 hours (give or take a few hours) after the potluck. What pathogens would you consider as possible etiologic agents? How would you test for them?

 

2. A concerned citizen calls the health department and reports that one of the waiters at a restaurant was clearly jaundiced. She reports the waiter’s name and the name of the restaurant to you. The waiter has not been reported as a hepatitis case to your office. Health inspectors are immediately dispatched to exclude the waiter from work until the cause of his hepatitis can be determined. He is very cooperative, and agrees to have his blood drawn for hepatitis serology.

The results of a comprehensive hepatitis panel are as follows:

·       ALT: 873

·       HAV IgM: Borderline

·       HAV IgG: Positive

·       HBsAg: Positive

·       HBsAB: Negative

·       HBcore IgM: Positive

·       HBcore IgG: Negative

·       HCV RNA: Positive

It is obvious that there isn’t a simple answer to what is going on. How would you interpret these results? In light of that interpretation, how would you respond? Would you exclude the waiter? If yes, for how long? If no, why not?

 

3. A local public health department is planning to initiate surveillance for respiratory illness this fall. Your laboratory can perform a wide variety of tests on the specimens, although some of the tests can be very expensive. How would you collect specimens for testing? Which pathogens would you look for? What would be the advantages and disadvantages of your approach?

4. As social media has become more prevalent in our lives, public health professionals have looked for ways to use this information (e.g. Twitter, Facebook) to enhance our understanding of disease in the community. What do you see as the pros, cons and challenges of trying to use the personal information we choose to share with the world?

5. While working in a local health department, you receive a report of a child in elementary school with active tuberculosis, as confirmed by a chest X-ray and bacterial culture. You have a small staff, and limited resources. Who would you investigate as contacts of this cases, and how would you prioritize the investigation of these contacts? What questions would you ask?

6. A physician has a patient with symptoms typical of influenza. He performs a rapid test in the office, which returns a positive result. He then collects a sample which is sent to the state public health laboratory. The lab uses a PCR test and finds that it is positive for influenza (type H1). At the same laboratory, a culture for influenza comes back negative. How would you explain these conflicting results? If you were performing surveillance for lab-confirmed influenza, would you consider this a case? Why or why not?

For question 7, answer should be 1 paragraph (5-10 sentences).

7. The infectious disease you would like to write your paper about is:

Subject Science
Due By (Pacific Time) 08/01/2014 11:00 pm
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