Salmonella Outbreak? These Are the Signs You Should Know and How to Protect Yourself

• Salmonella: How the infection occurs.
• Symptoms and warning signs.
• Measures to prevent it.

Salmonella is one of the bacteria that most frequently causes intestinal illnesses related to contaminated food.

Although many people recover without complications in a few days, the infection can be severe in babies, older adults, pregnant women, and people with weakened immune systems.

Everything you need to know about salmonella

What is salmonella and how is it transmitted?

One of the main mechanisms of transmission is the consumption of food or water contaminated with the bacteria.

Among the products most frequently associated with the infection are:

• Raw or undercooked beef, pork, or chicken.
• Raw or undercooked eggs.
• Unpasteurized milk and dairy products.
• Seafood from contaminated waters.
• Fruits and vegetables that have come into contact with contaminated water or raw meat juices.

The bacteria normally live in the intestine of infected animals and people and are eliminated through feces, which facilitates the contamination of food and surfaces.

Symptoms can appear a few hours after infection

The infection does not always produce symptoms, but when they appear, they usually do so between six hours and six days after exposure, although other sources indicate that they commonly begin between one and three days after.

The most frequent symptoms include:

• Diarrhea.
• Fever.
• Abdominal pain or cramps.
• Nausea.
• Vomiting.
• Chills.
• Headache.
• Blood in the stool in some cases.

Many people initially believe they have a «stomach flu», since the symptoms are very similar.

According to the MSD Manual, nausea and cramps usually appear first, followed by the development of watery diarrhea accompanied by fever and vomiting.

Most patients improve without antibiotics

In healthy people, the infection usually goes away on its own after a few days or up to a week.

Treatment usually focuses on:

• Maintaining good hydration.
• Replenishing lost fluids due to diarrhea.
• Resting while the body eliminates the infection.

New York health authorities point out that, in most common cases, routine use of antibiotics or medications to stop diarrhea is not recommended, as the body usually overcomes the infection without the need for these treatments.

The MSD Manual also explains that antibiotics generally do not shorten recovery in usual cases of gastroenteritis and are reserved for patients at higher risk of complications or when the bacteria enter the bloodstream.

There are people at higher risk of suffering complications

Although most cases do not pose a serious danger, certain groups require closer medical monitoring.

Among them are:

• Babies.
• Young children.
• Older adults.
• Pregnant women.
• People with HIV or AIDS.
• Transplant patients.
• People receiving corticosteroids or medications that weaken the immune system.
• People with diseases that affect the immune system.

In these patients, the bacteria can pass from the intestine into the bloodstream and affect other organs.

Dehydration is one of the main concerns

Severe diarrhea can cause significant fluid loss.

Warning signs include:

• Little or very dark urine.
• Dry mouth and tongue.
• Sunken eyes.
• Tearless crying in children.
• Extreme fatigue.
• Irritability or confusion.

If these symptoms appear, it is essential to seek medical attention.

The bacteria can also affect other parts of the body

In some patients, especially those with weakened immune systems, salmonella can enter the bloodstream and cause infections in other organs.

Among the described complications are:

• Urinary tract infections.
• Meningitis.
• Endocarditis.
• Osteomyelitis.
• Infections in blood vessels.
• Reactive arthritis weeks or months after intestinal infection.

These complications are rare but can be life-threatening if they do not receive treatment in time.

Pets can also transmit salmonella

Not only food poses a risk.

Various animals can carry the bacteria without showing signs of illness, especially:

• Reptiles such as turtles, snakes, and lizards.
• Birds.
• Chicks.
• Some dogs and cats.

Contact with these animals or their feces makes it essential to wash your hands properly.

The MSD Manual states that up to 90% of reptiles can be infected with Salmonella and recommends taking precautions, especially in households with young children.

Prevention begins in the kitchen

Experts agree that most infections can be prevented by following simple hygiene and safe food handling measures.

The main recommendations are:

• Cooking meat, chicken, and eggs thoroughly.
• Avoiding consumption of raw milk or unpasteurized products.
• Washing fruits and vegetables before eating them.
• Separating raw foods from cooked foods to prevent cross-contamination.
• Washing hands with water and soap for at least 20 seconds before and after handling food, after using the bathroom, or after touching animals.
• Refrigerating perishable foods quickly.
• Cleaning cutting boards, knives, and surfaces after preparing raw meat.

These measures help significantly reduce the risk of contracting salmonellosis and also prevent the transmission of the bacteria to other people.

Salmonella is an infection that, in most cases, can be prevented with simple hygiene measures and proper food handling.

Knowing how it is transmitted, identifying its symptoms in time, and knowing when to seek medical attention can make a difference, especially for young children, older adults, pregnant women, and people with weakened immune systems.

You may be interested in: Sanitary alert for legionella in New York: Do you know how to protect yourself?

Warning: This content is for informational and educational purposes only. It does not replace the evaluation, diagnosis, or treatment of a health professional. If you have persistent symptoms, high fever, blood in your stool, or signs of dehydration, consult a doctor as soon as possible.

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Did you know that common foods like eggs or undercooked chicken can increase the risk of a salmonella infection?

SOURCE: Mayo Clinic./New York State Department of Health / MSD Manual (Merck Manuals)