What are the symptoms of salmonella infection?
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Symptoms of Salmonella Infection
Common Gastrointestinal Symptoms
Salmonella infection, also known as salmonellosis, primarily manifests through gastrointestinal symptoms. The most frequently reported symptoms include diarrhea, abdominal pain, and cramps, which are often accompanied by nausea and vomiting He2023Kushwaha2022Kareem2020+2 MORE. These symptoms typically appear 12 to 36 hours after exposure to the bacteria and can last from 4 to 7 days . Fever is another common symptom, often presenting alongside gastrointestinal distress He2023Kareem2020Ehuwa2021+1 MORE.
Systemic Symptoms
In addition to gastrointestinal symptoms, salmonellosis can also cause systemic symptoms such as fever and headache Sarvepalli2023Ehuwa2021Ferrari2019. In some cases, the infection can lead to more severe systemic conditions, including typhoid fever, which is characterized by prolonged fever, fatigue, and temperature fluctuations . Myalgia, or muscle pain, is also reported in some cases .
Severe and Complicated Cases
While most individuals recover from salmonellosis without medical intervention, certain populations, such as the elderly, infants, and immunocompromised individuals, are at higher risk for severe illness Kareem2020Hurley2014. Complications can include bacteremia, where the bacteria enter the bloodstream, potentially leading to infections in other parts of the body such as the aorta, endocardium, bones, and meninges . Reactive arthritis, characterized by joint pain and inflammation, has also been observed following Salmonella infection .
Rare and Specific Symptoms
In rare cases, Salmonella infection can lead to specific symptoms such as conjunctivitis, which involves redness and irritation of the eyes . Additionally, some serotypes of Salmonella, such as Salmonella typhi, can cause unique symptoms like constipation instead of diarrhea, and mild liver involvement has been reported in a subset of patients .
Conclusion
Salmonella infection presents a wide range of symptoms, primarily affecting the gastrointestinal system but also capable of causing systemic and severe complications. Common symptoms include diarrhea, abdominal pain, nausea, vomiting, and fever, while severe cases can lead to bacteremia and reactive arthritis. Understanding these symptoms is crucial for timely diagnosis and treatment, especially in vulnerable populations.
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Most relevant research papers on this topic
Worldwide Epidemiology of Salmonella Serovars in Animal-Based Foods: a Meta-analysis
Salmonella serovars are prevalent in animal-based foods, with poultry being the main source and Anatum and Weltevreden being the most common in beef and seafood, highlighting the need for improved control programs.
The spectrum of Salmonella infection.
Salmonella infection can cause various syndromes, with antibiotic resistance a major issue, and current vaccines provide only moderate protection for short periods of time.
High frequency of reactive joint symptoms after an outbreak of Salmonella enteritidis.
Reactive joint symptoms after food-borne Salmonella infection are more frequent than previously thought, with the duration of diarrhea strongly correlated with the occurrence of joint symptoms.
Salmonella–Host Interactions – Modulation of the Host Innate Immune System
Salmonella enterica infections can cause various clinical symptoms, and understanding host-pathogen interactions is crucial for understanding its pathogenicity in clinical contexts.
Salmonella Detection Methods for Food and Food Ingredients
Salmonella detection methods for food and food ingredients vary, with some methods based on physiological and biochemical markers, others on cell surface markers, and others based on nucleic acid sequencing.
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