Which statement about typical chlamydiae infections is true?

The statement that most infections go untreated due to their asymptomatic nature is accurate regarding typical chlamydiae infections. Chlamydiae, such as Chlamydia trachomatis, often cause infections that do not present noticeable symptoms in many individuals. As a result, people may be unaware that they are infected and thus do not seek treatment. This asymptomatic nature contributes significantly to the spread of chlamydial infections, particularly in sexually active populations.

The other statements do not hold true in the context of chlamydiae infections. Chlamydiae are unique in their biology and do not possess peptidoglycan, which is typically found in the cell walls of bacteria. Therefore, they do not conform to classifications of gram-positive or gram-negative bacteria based on typical morphology. While chlamydiae can provoke an immune response, they are not classified as highly immunogenic compared to other pathogens, and standard tests for chlamydial infections might not be universally available or effective as the statement suggests. Acknowledging the prevalence of asymptomatic cases is crucial for understanding the public health implications of chlamydial infections.