Dr. Jose Kennedy Amaral Pereira, a rheumatologist from Brazil specializing in chronic chikungunya arthritis, joins Dr. Daniela DiMarco, an infectious disease physician focusing on STIs. They delve into the alarming rise of chikungunya in Brazil, comparing it to dengue and discussing its severe joint pain symptoms. The duo emphasizes the difficulty of distinguishing chronic chikungunya from rheumatoid arthritis. They also tackle the complexities of diagnosing syphilis, especially its mimicking of rheumatic diseases, underscoring the importance of precise testing in rheumatology.