What sign is associated with yellow fever?

Faget's sign is associated with yellow fever, which is characterized by a relative bradycardia or a slower than expected heart rate in the presence of fever. This sign can be indicative of several infectious diseases but is particularly noted in cases of yellow fever. Patients may experience an elevated body temperature alongside a reduced heart rate, which contrasts with the more typical tachycardia one might expect in febrile illnesses.

In the context of yellow fever, this sign helps clinicians identify the disease, especially when considered alongside other symptoms such as jaundice and abdominal pain. Understanding Faget's sign is crucial for medical professionals as it can assist in diagnosing yellow fever and differentiating it from other febrile illnesses that do not present with this unique finding.

The other signs mentioned are related to different medical conditions. For instance, Cullen's sign indicates intra-abdominal bleeding, while Brudzinski's and Kernig's signs are associated with meningitis, aiding in the diagnosis of that condition. The specificity of Faget's sign to yellow fever makes it a critical point of focus for diagnosis and management in suspected cases.