Question

Ms. R, a 25-year-old health care worker from Chicago, volunteered for work in Haiti with her church group following the earthquake. She observed a high incidence of measles in infants in the tent cities set up for survivors.

1. Identify factors that would promote the transmission of measles in this case.

2. For each factor, suggest at least one preventive measure that could be undertaken.

3. Analyze how host resistance been reduced in the Haitian population.

4. Appraise if Ms. R at risk for measles. Support your conclusions

5. Design a research project that includes three possible methods of study with the goal of reducing the incidence of measles transmission. Choose the method that you think may be most successful and provide your rationale for this choice.

Answer 1

1) Facors that promote the trasmission of measles-,a) Measles virus is present in nose and throat of an infected person. it spreads through sneezing, coughing , talking and other activies that cause infected droplets from these cavities to become airborne. the person is infected by inhaling the infected droplets.

b) The hand contact with infected person also spreads disease.

c) Newborn and young childrens who are not vaccinated against measles are suddenly get infected.

d) The person who lacks vitamin A increases the chances of contracting measles.

2) Preventive measures-

a) Immunisation

b) Protecting yourself and your health from infected person.

c) Vaccination.

3) Host resistance is reduced due to fallowing conditions-

Measles virus enters body through respiratory tract using the signaling lymphocyte activation molecule (SLAM) receptor and is thought to multiply first in lymphoid cells. Virus invades the epithelial cells in many organs.