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Iph2311:Disease Surveillance Question Paper

Iph2311:Disease Surveillance

Course:Bachelor Of Science In Public Health

Institution: Meru University Of Science And Technology question papers

Exam Year:2010

INSTRUCTIONS: Answer question one and any other two questions
QUESTION ONE – (30 MARKS)
(a) Define the following terms: (10 Marks)
(i) Geographical information system (GIS)
(ii) Geocoding
(iii) Choropleth map
(iv) Thematic mapping
(v) Geographic database
(vi) Passive sensors
(vii) Polygons
(viii) Remote sensing
(ix) Features
(x) An orthophotograph
(b) Describe a map and explain why cartography has changed over time. (2 Marks)
(c) Distinguish between discrete and continuous data giving two examples of each data set.
(4 Marks)
(d) Describe sources of acquiring data for use in a GIS. (4 Marks)
(e) Discuss two advantages of GIS application in public health sector. (2 Marks)
(f) Discuss the functions of a Global positioning system (GPS). (4 Marks)
(g) Design and briefly explain how you will use GIS to answer reported cases of asthma in
Meru Town. (4 Marks)
2
QUESTION TWO – (20 MARKS)
Explain the role of geographical information system in the Science world. (20 Marks)
QUESTION THREE – (20 MARKS)
(a) Explain how images in geographical information systems are presented in raster and
vector format. Illustrate using diagrams. (10 Marks)
(b) Discuss the advantages of the application of satellites to capture data for addressing
public health issues. (10 Marks)
QUESTION FOUR – (20 MARKS)
Explain how geographical information system can be applied in public health today to solve
health issues affecting communities. (20 Marks)

Iph2311:Disease Surveillance Question Paper

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