Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

Case study on Salmonella Outbreaks in the U.S.

Every year, approximately 42,000 cases of salmonellosis are reported in the United States. Because many milder cases are not diagnosed or reported, the actual number of infections may be twenty-nine or more times greater. It is estimated that approximately 400 persons die each year with acute salmonellosis. A small number of persons with Salmonella develop pain in their joints, irritation of the eyes, and painful urination. This is called reactive arthritis. It can last for months or years, and can lead to chronic arthritis which is difficult to treat. Antibiotic treatment does not make a difference in whether or not the person develops arthritis. (CDC, 2013)

1) Using your OWN WORDS describe the full Chain of Infection for Salmonella. Cite your references:

a) Agent(s):
b) Reservoir(s):
c) Exit/Transmission/Entry:
d) Host Susceptibility:

2) Find and include the most current CASE DEFINITION for Salmonellosis. Cite your source(s):

3) Use the attached source, The MMWR Notifiable Diseases – U.S., 2011 (http://www.cdc.gov/mmwr/PDF/wk/mm6053.pdf), to answer these problems about the descriptive epidemiology of Salmonella morbidity in the US.  Support your answers by including some data comparisons from this source.

a) Is it seasonal?  If so, what is its seasonality?
b) Is it geographically specific? (Refer to US regions, not sates)
c) What is the term trend (2004 -2011) in Reported Cases per year?

4) There are currently two active US outbreaks of Salmonella involving live poultry. Much of the exposure is coming from backyard pets and small suburban flocks of chickens and ducks. To investigate the source of salmonella in these livestock, the CDC has been randomly testing chicks and ducklings at the sources for these livestock: farm stores and mail-order livestock suppliers. Twelve suppliers were randomly selected in each category and 100 chicks or ducklings were tested per site.  Here are the data for the number of positive tests per 100 livestock tested per supplier:

Mail-Order: 5, 7, 6, 3, 6, 4, 5, 2, 6, 8, 6, 7
Farm Stores: 8, 3, 6, 7, 3, 4, 8, 7, 3, 2, 8, 6

a) Create a Frequency Table for BOTHsources

b) Compute, compare, and interpret the following for BOTHsources.

You MUST show your full computations for credit:

  • Meanand Mode of infected livestock   
  • Confidence Intervals
  • For which source are we most confident that our tests results can be inferred to similar sources? How do you know?
  • Toward which sourceshould the CDC direct itsregulatory efforts? Why?

 

Biology, Academics

  • Category:- Biology
  • Reference No.:- M91225

Have any Question? 


Related Questions in Biology

Organic chemistry1 there is an attachement with 24

Organic Chemistry 1. There is an attachement with 24 molecules. Make three classification based on the function group. 2. Fill out the chart in the attactment. Complete the flowchart for the separation and isolation of: ...

Which theoretical perspective that guides the nursing

Which theoretical perspective, that guides the nursing process with assessment of the family, do you find to be the most helpful and effective? Why is this theory more appealing to you than the others?

Biologysickle cell disease1describe the disease and its

Biology Sickle Cell Disease 1. Describe the disease and its genetic basis. 2. Explain how this disease is inherited and why it is not always inherited. 3. Why is genetic testing controversial?

Presents a clear logical case in irac format for the issues

Presents a clear, logical case in IRAC format for the issues of informed consent in patients with dementia. Proposes logical resolutions for the issue, why it is an issue, how it could have occurred, and what safeguards ...

Compare the values of q and keq is the physiological

Compare the values of Q and K'eq. Is the physiological reaction near or far from equilibrium? Explain. What does this experiment suggest about the role of PFK-1 as a regulatory enzyme?

1 there are two events that define a sexual life cycle

1. There are two events that define a sexual life cycle: formation of haploid gametes (egg and sperm) via Meiosis and fusion of gametes (fertilization) to form a diploid embryo. List and then describe two different proce ...

Physiology learning planfor your selected topic you are the

Physiology Learning Plan For your selected topic: You are the nephrology nursing educator working with new mill Topics -  GFR -  Removal of metabolic wastes -  Excretion of drugs and toxins -  Total body fluid volume and ...

Disscussion board biologybiotechnology allows the use of

Disscussion Board Biology Biotechnology allows the use of living organisms or their processes for human needs or purposes. Currently, this topic includes such general examples as cloning, stem cells (adult, umbilical cor ...

Discussionmuch of health assessment planning evaluation and

Discussion Much of health assessment, planning, evaluation, and policy making depend on communication. How can the Shannon-Weaver communications model be applied to these? What noise (interruptions or barriers) could sta ...

Experiment 4 exercise 1 mitosis in a plant cellread through

Experiment 4 Exercise 1: Mitosis in a Plant Cell Read through the Experiment 4 Introduction material before starting. In this exercise we will look at the different stages of mitosis in onion cells. The length of the cel ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate