It is an infection caused by a strain of bacteria called group A beta-hemolytic streptococcus. It is most common between the ages of 2 and 12 years, being unusual in children under 2 years of age.
It is spread by contact with secretions and/or saliva of an infected person. This bacterium is capable of producing a toxin, to which some people are sensitive, causing the characteristic rash.
The most frequent symptoms are skin rash, fever, pain and redness of the throat. The rash looks like sunburn, rough like sandpaper to the touch and may itch. It usually spreads over the entire body and may be more pronounced in folds. It usually disappears after 4 to 6 days and begins a period of desquamation lasting weeks.
Diagnosis is clinical by interrogation and physical examination. For confirmation, it is necessary to perform a Faringotest/Streptotest with a sample of secretions from the throat.
Treatment is based on oral or injectable antibiotics depending on the severity.
- Ferretti JJ, Stevens DL, Fischetti VA, editors. Streptococcus pyogenes : Basic Biology to Clinical Manifestations. Oklahoma City (OK): University of Oklahoma Health Sciences Center; 2016.
- García-Vera C, de Dios Javierre B, Castán Larraz B, Arana Navarro T, Cenarro Guerrero T, Ruiz Pastora R, Sánchez Gimeno J. Scarlet fever: A not so typical exanthematous pharyngotonsillitis (based on 171 cases).Enferm Infecc Microbiol Clin. 2016 Aug-Sep;34(7):422-6.
- Paul SP, Heaton PA. At a glance: sacrlet fever in children. J Fam Health Care. 2014 Apr;24(3):25-7. Review.
- Wong SS, Yuen KY. Streptococcus pyogenes and re-emergence of scarlet fever as a public health problem. Emerg Microbes Infect. 2012 Jul;1(7):e2. doi: 10.1038/emi.2012.9. Epub 2012 Jul 11. Review.
- Mahara G, Chhetri JK, Guo X. Increasing prevalence of scarlet fever in China.BMJ. 2016 May 17;353:i2689. doi: 10.1136/bmj.i2689.
