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Geographic Considerations
- Consider the patient's location and travel history when diagnosing fever and rash.
- Different regions have varying prevalences of infectious diseases.
Review Childhood Rashes
- Classic childhood rashes like measles, rubella, and fifth disease (parvovirus B19) can present in adults.
- Roseola infantum (sixth disease) is caused by human herpesvirus 6B or 7.
Must-Not-Miss Rashes
- Consider life-threatening rashes like meningococcemia, toxic shock syndrome, and Rocky Mountain spotted fever.
- Treat these conditions immediately with broad-spectrum antibiotics, even before confirming the diagnosis.


