The salmonellosis infection is transmitted through:

RRB Nsg. Superintendent - 29 April 2025 (Shift-3rd)

Applied Microbiology & Infection control

Easy

Appeared in: RRB Nsg. Superintendent - 29 April 2025 (Shift-3rd)

Explanation

Salmonellosis is a foodborne illness primarily transmitted via the fecal-oral route.
The main mode of infection is the ingestion of food or water that has been contaminated with Salmonella bacteria.
Common sources of contamination include raw or undercooked poultry, eggs, meat, and unpasteurized dairy products.
The bacteria are ingested, survive stomach acid, and colonize the intestines, causing gastroenteritis.

Option A: Salmonellosis is a gastrointestinal infection, not a respiratory one. It is not spread through the air via coughing or sneezing.
Option B: This route involves transmission by insects like mosquitoes or ticks. Salmonellosis is not spread this way.
Option D: Fomites are inanimate objects. While it's technically possible to get salmonellosis by touching a contaminated surface and then your mouth, this is not the primary or most common route of transmission. The main vehicle is contaminated food and water.

Visual 1: Diagram - A flowchart illustrating the fecal-oral route of transmission for Salmonellosis, showing the cycle from an infected animal/person to food/water and then to a new host.

Clinical Relevance

Nursing practice connection: Knowing Mode of transmission for Salmonellosis helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Nurses are central to patient education on preventing salmonellosis. Key teaching points include thorough cooking of meat and eggs, proper handwashing, and avoiding cross-contamination in the kitchen.
In a clinical setting, nurses must implement contact precautions for patients with confirmed or suspected salmonellosis to prevent nosocomial (hospital-acquired) transmission.
What if? If the patient diagnosed with salmonellosis works as a food handler, the nurse has a public health responsibility to ensure this is reported. The patient cannot return to work until cleared by public health authorities (usually after several negative stool tests) to prevent a community outbreak.

How to Approach the Question

First, identify the keyword in the question: 'Salmonellosis'.
Access your knowledge about common infectious diseases. Recall that Salmonella is a type of bacteria famously associated with 'food poisoning'.
Analyze the options provided, which represent different modes of disease transmission.
Evaluate each option in the context of a foodborne pathogen: 'Air' (respiratory), 'Vector' (insect bites), 'Contaminated food and water' (ingestion), 'Fomites' (contaminated surfaces).
The most logical and primary route for a pathogen known to cause food poisoning is through ingestion.
Therefore, select 'Contaminated food and water' as the most direct and common mode of transmission for Salmonellosis.

Concept Tested & Keywords

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