17 - Healthdigest - Salmonella 17 - Healthdigest - Salmonella
Preventive Care
Gut Health

Understanding Salmonella and Its Impact on Health

21 October 2025 · 4 mins read

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Salmonella causes gastroenteritis through contaminated food or water. Key prevention includes hygiene, safe cooking, and early treatment for severe cases.

The Cause and Spread of Salmonella Infections

Salmonella refers to a group of bacteria that are a leading cause of gastroenteritis worldwide. This form of foodborne illness is especially common in tropical climates such as Malaysia, where the warm and humid environment allows the bacteria to thrive.

Infections are usually the result of consuming food or water that has been contaminated. Undercooked or raw poultry, eggs, and unwashed fruits and vegetables are common sources. Contamination may also occur through poor food handling and inadequate hygiene practices (Ehuwa et al., 2021).

The Effect of Salmonella on the Body

Once inside the body, Salmonella bacteria target the gastrointestinal tract, leading to symptoms associated with gastroenteritis. Individuals may experience diarrhoea, abdominal cramping, fever, and vomiting. These symptoms typically begin between 6 to 72 hours after exposure and may persist for up to a week (Stuempfig & Seroy, 2023).

Most cases are self-limiting and resolve without medical intervention. However, some infections—especially in vulnerable groups—may lead to complications such as dehydration or the spread of bacteria beyond the intestines.

Preventing Salmonella Infections

Effective prevention hinges on maintaining good hygiene and safe food preparation habits. The following measures are key in reducing the risk of infection:

  • Hand hygiene: Wash hands with soap and water before preparing meals, after using the toilet, and after handling animals.
  • Safe cooking practices: Ensure that poultry, meat, and eggs are thoroughly cooked to eliminate any harmful bacteria.
  • Food safety: Wash fruits and vegetables under running water before consumption, particularly if eaten raw.
  • Avoiding cross-contamination: Use separate chopping boards and utensils for raw and cooked foods to prevent bacteria from spreading.

These steps significantly reduce the risk of Salmonella transmission (Seladi-Schulman, 2020).

Diagnosis and Treatment at Gleneagles Hospitals

For patients experiencing symptoms of gastroenteritis, Gleneagles Hospitals offer comprehensive diagnostic and treatment services. Prompt and accurate diagnosis is essential. Our laboratories use advanced testing to confirm the presence of Salmonella and determine the severity of the infection.

Treatment is primarily supportive. Rehydration is the cornerstone of care, as diarrhoea can result in significant fluid and electrolyte loss. Mild cases are typically managed with oral rehydration solutions, while more severe dehydration may require intravenous fluids.

In rare cases where the infection spreads beyond the gastrointestinal tract or when the patient is immunocompromised, antibiotic therapy may be necessary.

At Gleneagles Hospitals, a multidisciplinary approach ensures that patients receive holistic care—addressing not only the infection but also providing education to prevent future recurrences.

Frequently Asked Questions About Salmonella

What symptoms of Salmonella infection require medical attention?

Persistent diarrhoea, high fever, dehydration, or any symptoms lasting longer than a few days should prompt medical evaluation.

Can Salmonella become life-threatening?

While most infections are mild, severe cases—particularly in infants, older adults, or individuals with weakened immune systems—can lead to complications and may require hospital care.

Is there a recommended diet during recovery?

Yes. A bland diet consisting of easily digestible foods, along with plenty of fluids, is recommended. Spicy, oily, or raw foods should be avoided during recovery.

How can parents protect children from Salmonella?

Parents should ensure children practise good hygiene, including regular handwashing. Raw or undercooked foods, such as eggs and certain types of seafood, should be avoided in young children’s diets.

How does Gleneagles Hospitals support the community in managing Salmonella infections?

Gleneagles Hospitals offer expert diagnostics, treatment, and preventive education to ensure individuals and families are well-equipped to manage and reduce the risk of foodborne illnesses.

Book an Appointment with Gleneagles Hospitals

Salmonella is a preventable cause of gastroenteritis. With increased awareness, proper hygiene, and safe food practices, the risk of infection can be significantly reduced. At Gleneagles Hospitals, we are dedicated to helping individuals and families protect their health through accurate diagnosis, expert care, and health education initiatives.

If you are experiencing symptoms of gastroenteritis or are concerned about potential foodborne illness, do not delay seeking care. Book an appointment with Gleneagles Hospitals via our website, or download the MyHealth360 application from the Google Play Store or Apple App Store.

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