Questions: In addition to observation of clinical presentation of symptoms, measles is diagnosed using which of the following? Kirby-Bauer assay Western blot rRNA analysis ELISA

The answer is the fourth one (D): ELISA.

Explanation for each option:

• Kirby-Bauer assay: This is a method used to determine the susceptibility of bacteria to antibiotics. It is not used for diagnosing viral infections like measles.

• Western blot: This technique is used to detect specific proteins in a sample. While it can be used in some viral diagnostics, it is not the standard method for diagnosing measles.

• rRNA analysis: This method is typically used for identifying and classifying bacteria and other microorganisms based on their ribosomal RNA. It is not used for diagnosing viral infections like measles.

• ELISA (Enzyme-Linked Immunosorbent Assay): This is a common laboratory test used to detect antibodies in the blood. It is used to diagnose measles by detecting measles-specific IgM antibodies, which indicate a recent infection.

Summary: Measles is diagnosed using ELISA, which detects specific antibodies in the blood.