LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – MEDICAL LAB. TECH.

THIRD SEMESTER – APRIL 2007

ML 3902 – PATHOGENS OF HUMAN IMPORTANCE

Date & Time: 28/04/2007 / 9:00 – 12:00      Dept. No.                                        Max. : 100 Marks

Section –A

Answer all the questions                                                          2X10=20marks

1. Distinguish bacteremia from septicemia
2. Mention the most frequent types of hospital-acquired infections.
3. Expand the abbreviations of the following.

MMR, HSV, DPT, CFT.

1. Draw the structure of Streptococcus pyogenes and add a note on morphology.
2. List any four diseases caused by Rickettsial species.
3. Distinguish encystation from excystation.
4. List any four clinical features of Wuchereria bancrofti.
5. Mention the enzymes and their activity in Streptococcus pyogenes.
6. Distinguish virulence and invasiveness.
7. What are the clinical features of poliovirus?

Section-B

Answer any four of the following                                           4X10=40marks

1. Explain the pathogenesis and clinical conditions of Shigella dysenteriae.
2. What are the physical methods of sterilization? Explain filtration techniques in detail.
3. Describe in detail the measures to prevent hospital-acquired infections.
4. Discuss the clinical features of H.influenzae
5. Draw and explain the life cycle of Taenia solium.
6. Explain the spread of community-acquired infections.

Section-C

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

17. Describe the life cycle of malarial parasite with suitable diagrams.
18. Describe in detail the pathogenesis and clinical features of AIDS.
19. Explain in detail the streptococcal infection.
20. Write a detailed account on the control and prevention of hospital-acquired infections.

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – MEDICAL SOCIOLOGY

THIRD SEMESTER – November 2008

    ML 3902 – PATHOGENS OF HUMAN IMPORTANCE

Date : 14-11-08                 Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

PART-A

     ANSWER ALL THE QUESTIONS:                                          (10 x 2=20 Marks)

1. Define the terms endemic, epidemic and pandemic.
2. What is a communicable disease?
3. Explain haemolytic uremic syndrome.
4. Define the term pasteurization.
5. Explain bacillary dysentery.
6. Differentiate disinfectant from antiseptic.
7. Distinguish bubonic from pneumonic plague.
8. What are the common symptoms of typhoid?
9. Define the terms cellulitis and pharyngitis.
10. Write the names of the microorganisms which causes Diphtheria, Plague and Syphilis.

PART-B

    ANSWER ANY FOUR OF THE FOLLOWING:                    (4 X 10 =40 Marks)

11. Write short notes on Trichomoniasis and Shigellosis.
12. Explain the symptoms and complications of genital herpes.
13. Write short notes on disinfectant and antiseptic.
14. What is taeniasis? Explain the life cycle of taenia solium.
15. What are the stages, signs and symptoms of whooping cough?
16. Give an account of cycle for an infectious disease

PART-C

    ANSWER ANY TWO OF THE FOLLOWING:                        (2 X 20=40 Marks)

17. Write in detail different types of sterilization methods.
18. Explain the causes, symptoms, complications and lab diagnosis of typhoid fever.
19. Describe in detail the life cycle and pathogenicity of malarial parasite.
20. Write notes on Rabies and Poliomyelitis

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      LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – MEDICAL LAB. TECH.

THIRD SEMESTER – April 2009

ML 3902 – PATHOGENS OF HUMAN IMPORTANCE

Date & Time: 29/04/2009 / 9:00 – 12:00     Dept. No.                                                       Max. : 100 Marks

PART-A

ANSWER ALL THE QUESTIONS:                                      (10 x 2=20 Marks)

1. What are antigen and antibody?
2. Explain infectious disease with example.
3. What is opportunistic pathogen?
4. Define the term bacteremia and septicemia.
5. Draw neat labeled diagram of HIV.
6. Distinguish food intoxication from food poisoning
7. Expand MMR and DPT.
8. What is MDR-Tuberculosis?
9. Distinguish Red measles from German measles.
10. What is trichomoniasis?

PART-B

ANSWER ANY FOUR OF THE FOLLOWING:              (4 x 10 =40 Marks)

11. Describe in detail the pre and post streptococcal infection.
12. Describe in detail the three phases of lymphogranuloma venereum.
13. Explain the life cycle and pathogenicity of Entamoeba histolytica.
14. Write short notes on different types of jaundice.
15. Explain the exo and endoerythrocytic cycle of malarial parasite.
16. Explain the causes, pathogenicity and lab diagnosis of gastroenteritis.

PART-C

ANSWER ANY TWO OF THE FOLLOWING:                (2 x 20=40 Marks)

17. Describe in detail the HIV infection.
18. Describe the four types of modes of transmission of infectious diseases with examples.
19. Explain the pathogenicity,symptoms and lab diagnosis of TB.
20. Write in detail the different types of sterilization methods.

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