LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.A. DEGREE EXAMINATION – SOCIOLOGY

AH 09

THIRD SEMESTER – NOV 2006

ML 3902 – PATHOGENS OF HUMAN IMPORTANCE

 

 

Date & Time : 03-11-2006/9.00-12.00   Dept. No.                                                       Max. : 100 Marks

 

 

SECTION –A

Answer all the questions                                                       2X10=20marks

1. Distinguish sterilization from disinfection.
2. What are the routes of spread of hospital acquired infection?
3. Define epidemiology.
4. Give the names of the organisms that cause the following diseases.

1. Chicken pox
2. Whooping cough
3. Cholera
4. Amoebiasis

1. Draw the structure of influenza virus.
2. List the clinical symptoms that are associated with pulmonary tuberculosis.
3. What is black water fever?
4. What are negri bodies?
5. Distinguish encystation from excystation.
6. Mention the three types of toxic activity in Salmonella dysenteriae.

 

SECTION-B

Answer any four of the following                                        4X10=40marks

 

1. Describe the pathogenesis and clinical features of Streptococcus pneumoniae.
2. Explain the types of outbreaks in community-acquired infection.
3. Draw the structure of measles virus and write its morphology and pathogenesis.
4. Draw and describe the life cycle of Golgi.
5. Explain the pathogenesis and clinical manifestations of polio virus
6. Describe the clinical features of HIV.

 

SECTION-C

Answer any two of the following                                         2X20=40marks.

 

1. Explain the morphology, pathogenesis and clinical features of Mycobacterium tuberculosis.
2. With a neat flow chart, explain the physical methods of sterilization.
3. Explain in detail the life cycle of Entamoeba histlytica.
4. Describe the morphology, pathogenesis and clinical features of syphilis.

 

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