Relative bradycardia

DDx

Typhoid fever (enteric fever)
Legionnaire’s disease
Brucellosis
Leptospirosis
Psittacosis
Q fever
Viral hemorrhagic fever, eg, yellow fever
Infections affecting cardiac conduction: acute rheumatic fever, viral myocarditis, Lyme disease, endocarditis
Noninfectious causes: intrinsic cardiac conduction disease, beta blockers, calcium channel blockers, drug fever, neoplasm (eg, lymphoma), factitious fever, CNS lesion

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