Please provide your answers to the following questions in a separate typed docum

Question

Please provide your answers to the following questions in a separate typed document. Include the question number with your answer and show all of your work for full credit. Answer questions 14 by referring to the following scenario. In the Fall semester, 112 students attended a 5-day field trip to Washington DC. During the trip, 43 of the students became ill with norovirus, a highly contagious gastrointestinal illness that is shed in the feces of infected persons. All of the students who attended the field trip live in the same dormitory, which houses a total of 438 residents. In the week following the return of the travelers, another 168 dormitory residents became ill with norovirus. Over the course of the primary and secondary outbreaks, 2 students died as a result of complications from norovirus infection. 1) What is the attack rate (AR) of norovirus in this outbreak? Interpret the result. 2) What is the secondary attack rate (SAR) of norovirus in this outbreak? Interpret the result. 3) What is the case fatality rate (CFR) of norovirus in this outbreak? Interpret the result. 4) The following graph shows the number of travelers that became ill with norovirus over the two and a half days after a banquet dinner that was attended by all of the students on the field trip. Interpre the graph and explain what it is depicting. 14 12 0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 Hours swer questions 5-10 by choosing an infectious disease that you are interested in and in 1-2 tences each, briefly describe that disease with regard to the six steps in the chain of infection

Explanation / Answer

1.The attack Rate of norovirus in this out break is 38.36

   explanation: total persons 438+112=550

ipersons ill with norovirus 43+168=211

Rate of attack is 211/550*(100)=38.36

2.the secondary attack rate is 30.54

3. The case fatality rate is 0.36

persons died by attack the norovirus is 2

total persons is 550

rate of case fatality is 2/550 *(100)= 0.36

4. interpretation from graph

from the time of 8hrs after the banquet dinner no one is attack by the virus

in the 8th hour 1 person in effected .After complition of one day maximum persons are attack by norovirus

its graduvally decreses in the incresing of time of after one day

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