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Roseola

Roseola is a topic covered in the 5-Minute Emergency Consult.

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Emergency Central

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Basics

Description

  • Exanthem subitum
  • Incubation period of 5–15 days
  • Mode of acquisition unknown:
    • Horizontal spread by oral shedding suggested
    • It is spread person to person but is not very contagious.
    • Human is the only host.
  • Pathophysiology:
    • Complex immune response (cytokines, antibody responses, T-cell reactivity)

Etiology

  • Human herpesvirus 6 (HHV-6):
    • Large, double-stranded DNA
    • Closely related to human cytomegalovirus
  • Peak incidence at 6–12 mo; 90% occurrence within 1st 2 yr
  • Highest incidence in late spring and early summer

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Citation

Rosen, Peter, et al., editors. "Roseola." 5-Minute Emergency Consult, 5th ed., Lippincott Williams & Wilkins, 2016. Emergency Central, emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307425/all/Roseola.
Roseola. In: Rosen P, Shayne P, Barkin AZ, et al, eds. 5-Minute Emergency Consult. 5th ed. Lippincott Williams & Wilkins; 2016. https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307425/all/Roseola. Accessed April 26, 2019.
Roseola. (2016). In Rosen, P., Shayne, P., Barkin, A. Z., Wolfe, R. E., Hayden, S. R., Barkin, R. M., & Schaider, J. J. (Eds.), 5-Minute Emergency Consult. Available from https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307425/all/Roseola
Roseola [Internet]. In: Rosen P, Shayne P, Barkin AZ, Wolfe RE, Hayden SR, Barkin RM, Schaider JJ, editors. 5-Minute Emergency Consult. Lippincott Williams & Wilkins; 2016. [cited 2019 April 26]. Available from: https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307425/all/Roseola.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Roseola ID - 307425 ED - Rosen,Peter, ED - Shayne,Philip, ED - Barkin,Adam Z, ED - Wolfe,Richard E, ED - Hayden,Stephen R, ED - Barkin,Roger M, ED - Schaider,Jeffrey J, BT - 5-Minute Emergency Consult UR - https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307425/all/Roseola PB - Lippincott Williams & Wilkins ET - 5 DB - Emergency Central DP - Unbound Medicine ER -