What does the CAMP test confirm?

The CAMP test specifically confirms the presence of group B Streptococcus, scientifically known as Streptococcus agalactiae. This test is utilized in microbiology to identify this particular organism based on its unique ability to produce a synergistic effect when cultured with Staphylococcus aureus, resulting in enhanced hemolysis of red blood cells.

In the CAMP test, when group B Streptococcus is present, an arrowhead of enhanced hemolysis will form in the vicinity of the Staphylococcus aureus streak on the blood agar plate, thus visually indicating a positive result for group B Strep. The importance of accurately identifying S. agalactiae is underscored by its role as a significant pathogen in neonatal infections and maternal health.

The other answer choices address different microbiological phenomena that are not related to the CAMP test. For example, identifying resistant strains of staphylococcus involves different testing methods, such as the methicillin resistance test, while determining beta-lactamase production and the identification of S. pneumoniae utilize different biochemical assays or culture characteristics. Thus, option A is the only correct association with what the CAMP test confirms.