Aeromonas sobria, a common conditional pathogenic bacteria, is widely distributed in the environment and causes gastroenteritis in humans or septicemia in fish. Of all Aeromonas species, A. sobria is the most frequently isolated from human infections especially in immunocompromised subjects.
How do you get Aeromonas Sobria?
Clinical Relevance. Nowadays, Aeromonas are considered to be the etiological agents of several infections that can occur in both immunocompetent and immunocompromised people. The most common isolation is from feces of patients with diarrhea, then from wounds, and finally from blood.
Does Aeromonas Sobria have a capsule?
Mesophilic Aeromonas spp., A. hydrophila AH-3 (serogroup O: 34), and A. veronii bv. sobria (serogroup O: 11) are also able to produce a capsule when grown in glucose-rich media [37].
What are the symptoms of Aeromonas?
Aeromonas enteric infection may range from, most commonly, an acute watery diarrhea to dysenteric illness. Symptoms may include abdominal cramps (70%), nausea (40%), vomiting (40%) and fever (40%). Infection is usually self-limiting and children may be rarely hospitalized because of dehydration.
How do you treat Aeromonas?
What is the treatment of Aeromonas infection? A. hydrophila skin infection is treated with antibiotics such as tetracycline, sulfonamide, trimethoprim + sulphamethoxazole or ciprofloxacin. It is usually resistant to penicillin.
Is Aeromonas infection contagious?
Aeromonas-induced diarrhea is a contagious disease seen in both industrialized and developing countries in all age groups (3).
Where is Aeromonas found?
Aeromonas spp. are commonly found in ground water; drinking water at treatment plants, distribution systems, and reservoirs; and in clean and polluted lakes and rivers 1. The bacteria are found in about 1% – 27 % of drinking water 11 Aeromonas hydrophila can be found in fresh produce, meat, and dairy products.
How do you stop Aeromonas hydrophila?
Proper sanitary procedures are essential in the prevention of the spread of Aeromonas infections. Oral fluid electrolyte substitution is employed in the prevention of dehydration, and broad-spectrum antibiotics are used in severe Aeromonas outbreaks.
What are examples of Aeromonas?
Necrotizing fasciitis has been reported with species such as Aeromonas hydrophila, Aeromonas veronii biovar sobria, Aeromonas schubertii, and Aeromonas caviae. Aeromonas dhakensis is also associated with severe infections.
Are all Aeromonas pathogenic?
Aeromonas strains are predominantly pathogenic to poikilothermic animals, and the mesophilic strains are emerging as important pathogens in humans, causing a variety of extraintestinal and systemic infections as well as gastrointestinal infections.
Is Aeromonas a lactose fermenter?
Aeromonas caviae was the species most frequently observed; a high proportion of these strains fermented lactose, whereas lactose fermentation was not observed in strains of A.
How do you test Aeromonas?
Approach to Identification: Aeromonas species are facultative anaerobes that are oxidase and catalase positive. This test must be performed on media without a fermentable sugar (ie MacConkey agar), because the fermentation process results in acidification of the medium and a false-negative result may result.
Is Aeromonas lactose positive?
Although aeromonads grow on nearly all enteric media, they often are overlooked on MacConkey agar because A. caviae is lactose-positive just like Escherichia coli.
How do you get Aeromonas bacteria?
Aeromonas are found in water and infection can occur from swallow contaminated water, handling contaminated fish or water, and not washing hands thoroughly. Proper hand washing can reduce the risk transfering infection from one person to anouther.
How does Aeromonas hydrophila cause disease?
Aeromonas hydrophila is associated with diseases mainly found in freshwater fish and amphibians, because these organisms live in aquatic environments. It is linked to a disease found in frogs called red leg, which causes internal, sometimes fatal hemorrhaging.
What are the symptoms of Aeromonas hydrophila?
1.1 Aeromonas hydrophila–Induced Gastroenteritis
The symptoms of infection include watery stools, abdominal cramps, mild fever, and vomiting. Bronchopneumonia and cholecystitis are observed in severe cases (Mossel etal.,1999).
