Integrating viral hepatitis into yellow fever surveillance—reflections on Modiyinji et al.

• Modiyinji et al. report viral hepatitis in YF suspected cases in Cameroon, underscoring the diagnostic complexity of febrile jaundice. • Molecular assays add critical specificity and genotype-level insights to outbreak surveillance. • Integration of hepatitis testing into YF surveillance would improve accuracy and align with WHO’s hepatitis elimination targets. • Table 1 illustrates the broader differential diagnosis of febrile jaundice, supporting the case for integrated algorithms.