Question
List four modes of transmission of infection, with one example each.
Q134 marksShort Answers
Answer
Four modes of transmission of infection, with one example each:
- Direct contact — e.g., impetigo (Staphylococcus aureus/Streptococcus pyogenes), spread by direct skin-to-skin contact.
- Droplet transmission — e.g., influenza, spread via respiratory droplets from coughing/sneezing.
- Vector-borne transmission — e.g., malaria (Plasmodium species), transmitted by the Anopheles mosquito.
- Faeco-oral (vehicle-borne) transmission — e.g., cholera (Vibrio cholerae), via contaminated water/food.
(Other valid examples: airborne — tuberculosis via droplet nuclei; vertical — syphilis/HIV from mother to child.)
- 1Needle Stick Injury and Standard Precautions
Other Years Asked
- 1A CSF sample was received in microbiology lab without requisition form. How will you
manage this situation2024 June (Supplementary) (2019 Scheme)Short Answer · 4 marks
- 2How will you advise a health care worker to avoid needle stick injury while collecting blood from patients.2024 December (Supplementary) (2019 Scheme)Short Answer · 4 marks
- 3A swab is collected from an abscess in the ward. The details of the patient on the
sample container do not match those on the request form. Discuss the correct decision
and the appropriate action to be taken.2022 February (2019 Scheme)Short Answer · 4 marks
- 4How will you instruct a patient with suspected lower respiratory tract infection to collect a sputum sample.2024 December (Supplementary) (2019 Scheme)Short Answer · 4 marks
- 5A CSF sample, collected in the ward by lumbar puncture, does not reach the laboratory
for processing for bacterial culture. Discuss the correct decision and the appropriate
action to be taken.2022 July (Supplementary) (2019 Scheme)Short Answer · 4 marks
- 6A CSF sample for culture was refrigerated and sent to microbiology laboratory. Write the
correct decision and the appropriate action to be taken2024 March (Supplementary) (2019 Scheme)Short Answer · 4 marks
- 7A 25 year old presented to the emergency with breathlessness, cough and fever since five days.
The CT of the chest revealed bilateral ground glass opacities. A working diagnosis of viral
pneumonia was made and samples were sent for confirmation of the etiological agent.2025 March (Supplementary (SAY)) (2019 Scheme)Short Essay · 3 marks
- 8List the two common viral infections transmitted via needlestick injuries. Explain how these injuries can be
prevented (1+3)2025 March (Supplementary (SAY)) (2019 Scheme)Short Answer · 3 marks
- 9Name TWO modes of transmission of infection with examples for each2025 August (Supplementary) (2010 Scheme)Short Note · 2 marks
- 10A CSF sample was received in microbiology lab for culture. The label in the specimen
container was not matching with the specimen referral form. How will you manage the
situation.2023 July (Supplementary) (2019 Scheme)1 mark
- 11Name the disinfectant (with %) to be used for a large spill.2023 January (Supplementary) (2019 Scheme)1 mark
- 12What does “N95” refer to in a respirator.2024 June (Supplementary) (2019 Scheme)1 mark
- 13A sample was received in laboratory for blood culture from medical ward and it was
found to be wrongly labelled. What measures will you adopt in such a situation.2024 March (Supplementary) (2019 Scheme)1 mark