[CAMP factor for the differentiation among Aeromonas species]

Area of Science:

• Microbiology
• Clinical diagnostics
• Bacterial identification

Context:

• Aeromonas species are significant causes of acute diarrheal disease in children under 5.
• Accurate identification of Aeromonas species is crucial for understanding disease pathogenesis and epidemiology.
• Traditional methods for Aeromonas species differentiation can be complex and time-consuming.

Purpose:

• To evaluate the efficacy of the CAMP factor technique for presumptive identification of Aeromonas species.
• To compare the performance of the CAMP factor technique under different incubation conditions (aerobiosis and anaerobiosis).
• To determine the distribution of Aeromonas hydrophila, Aeromonas sobria, and Aeromonas caviae in isolates from children with acute diarrhea.

Summary:

• The CAMP factor technique was applied to 80 Aeromonas strains from children with acute diarrhea.
• Aeromonas hydrophila was identified in 10 strains showing the typical CAMP phenomenon in both aerobiosis and anaerobiosis.
• Aeromonas sobria was identified in 20 strains showing the phenomenon in aerobiosis only.
• Aeromonas caviae was identified in 50 strains where the phenomenon was not observed under either condition.

Impact:

• The CAMP factor technique offers a potentially rapid and reliable presumptive method for differentiating key Aeromonas species.
• This technique can aid in the routine laboratory diagnosis of Aeromonas-related diarrheal diseases.
• The findings contribute to the epidemiological understanding of Aeromonas species prevalence in pediatric populations.