Aeromonas hydrophila

Definition

Aeromonas hydrophila is a Gram-negative, rod-shaped bacterium commonly found in freshwater environments. It can cause infections in the skin, eyes, and gastrointestinal tract.

5 Must Know Facts For Your Next Test

1. Aeromonas hydrophila is often associated with wound infections, especially after exposure to contaminated water.
2. Symptoms of gastrointestinal infection by Aeromonas hydrophila include diarrhea, nausea, and abdominal pain.
3. This bacterium produces various virulence factors, such as hemolysins and enterotoxins, which contribute to its pathogenicity.
4. Immunocompromised individuals are at higher risk for severe infections caused by Aeromonas hydrophila.
5. Infections can be treated with antibiotics like ciprofloxacin or trimethoprim-sulfamethoxazole.

Review Questions

• What types of virulence factors are produced by Aeromonas hydrophila?
• Which population is more susceptible to severe infections caused by Aeromonas hydrophila?
• What are the common symptoms of a gastrointestinal infection caused by Aeromonas hydrophila?

Related terms

Gram-negative bacteria: Bacteria that do not retain the crystal violet stain used in the Gram staining method.

Virulence factors: Molecules produced by pathogens that contribute to the pathogenicity and promote infection.

Hemolysins: Substances produced by certain bacteria that can lyse red blood cells.