Descriptive epidemiology allows researchers to evaluate health and disease withi
ID: 112418 • Letter: D
Question
Descriptive epidemiology allows researchers to evaluate health and disease within and between populations, identify public health planning needs, and identify health outcomes that require further investigation to establish causal mechanisms. The key questions in descriptive epidemiology are:
What is the disease or condition of interest?
Who does the disease or condition of interest affect?
Where are the populations that the disease or condition of interest affects?
When does the disease or condition of interest affect the population?
Why does the disease or condition of interest affect the population?
This assignment requires you to select a disease from the 2013 National Notifiable Infectious Disease List and describe it according to the variables of person, place, and time. The list is available at the following web address:
http://wwwn.cdc.gov/nndss/script/conditionlist.aspx?type=0&yr=2013
Please make sure you answer each part of the question using complete sentences and proper spelling and grammar. Make sure your answers are thorough, yet concise, and that you support your answers with at least two appropriately cited references. Wikipedia and only online references are not an acceptable reference. please use peer reviewed literature or books.
Explanation / Answer
Dengue fever:
Dengue fever is a mosquito borne tropical disease caused by the dengue virus.
Symptoms can be seen and begins typically three to fourteen days after infection.Symptoms include a high fever,headache,vomiting,muscle and joint pains and a skin rashes.This Dengue fever can leads to hemorrhagic fever,a life threatening dengue resulting in bleeding,low levels of blood platelets and blood plasms leakage or into dengue shock syndrome where dangerously low blood pressure occurs.
Dengue virus is primarily transmitted by Aedes mosquitoes , particularly A.aegypt.Aedes aegypti is particularly lay eggs in water containers and feed on people.So if the people drinks that water also affected.
Babies and young children are more affected by Dengue fever.An infection can be acquired through a single bite by Aedes aegypti.Then it tsked blood from one infected person, and that infection passes to its body,salivary glands etc. and releases into its saliva.So it affects people by biting.
In 2013 singapore had affected with dengue fever with a total of 21,324 cases by the end of the year.
In 2011, In Asia-pakistan had affected with dengue fever with a total of 300 people.
In 2002, South America-Riode Janeiro had affected with dengue fever with a total of 1 million people.
In 1993, Africa - comoros had affected with dengue fever wiht a total of 60000 people.
In Australia - cairns 503 people were affected in the year 2009
In 2005 in USA 48 states were affected with Dengue fever.
References:
1) Dengue wikipedia
2)Simmons CP,Farrar JJ.Nguyen VV, et al.Dengue N EngJ Med.2012;366:1423-1432.
3)WHO,Speciall program for Research and training in Tropical Diseases (TDR).