Which of the following incubation conditions is used to grow common pathogenic Campylobacter sp. from stool specimens?

The correct incubation conditions for growing common pathogenic Campylobacter species from stool specimens involve a microaerophilic environment at a temperature of 42°C. Campylobacter is a genus of bacteria that are increasingly recognized as significant human pathogens, particularly involved in gastrointestinal infections.

The reason these specific conditions are significant is due to the unique metabolic requirements of Campylobacter. These bacteria require reduced oxygen levels for optimal growth, which is why a microaerophilic atmosphere is essential. Additionally, Campylobacter species, particularly Campylobacter jejuni, exhibit optimal growth at elevated temperatures, typically around 42°C, which is indicative of their adaptation to the intestinal tracts of birds, particularly poultry.

This combination of microaerophilic conditions and higher temperatures is critical for successfully isolating and identifying these bacteria in laboratory settings.