?Scarlet Fever Classification ofStreptococci Virulence ofGroup Aβ-hemolytic streptococciEpidemiologyPathophysiology Clinical Manifestations Complications Lab studiesDiagnosis &DifferentialDiagnosis TreatmentPrognosisDIVISION OFINFECTIOUS DISEASE ANDGASTROENTEROLOGY
Scarlet Fever DIVISION O F INFECTIO US DISEAS E AND GASTRO ENT E RO LO GY □ Classification of Streptococci □ Virulence of Group A β - hemolytic streptococci □ Epidemiology □ Pathophysiology □ Clinical Manifestations □ Complications □ Lab studies □ Diagnosis & Differential Diagnosis □ Treatment □ Prognosis
?EpidemiologySources of InfectionPatients:口scarlet fever, pharyngitis, tonsillitispyoderma, etc.Highly infectivestage ranges from 24 hours beforesymptom appearing to the fastigiumof disease Bacteria carriers:口nose, mouth, throat, respiratory tractand skinDIVISION OFINFECTIOUS DISEASE ANDGASTROENTEROLOGY
Epidemio logy DIVISION O F INFECTIO US DISEAS E AND GASTRO ENT E RO LO GY S o u r c e s of I nfe c t io n □ Patients: scarlet fever, pharyngitis, tonsillitis, pyoderma, etc. Highly infectivestage ranges from 24 hours before symptom appearing to the fastigium of disease. □ Bacteria carriers: nose, mouth, throat,respiratorytract and skin
?EpidemiologyRoutes of Transmissionrespiratory droplets口direct contact口indirect contact口DIVISION OFINFECTIOUS DISEASE ANDGASTROENTEROLOGY
Epidemio logy DIVISION O F INFECTIO US DISEAS E AND GASTRO ENT E RO LO GY R o u t e s of T r a n s mis s io n □ respiratory droplets □ direct contact □ indirect contact
?EpidemiologyRoutes ofTransmissionDroplet sprayThe major route of transmissionis person to persondirectlyby respiratory dropletsDIVISION OFINFECTIOUS DISEASE AND GASTROENTEROLOGY
Epidemio logy R o u t e s of T r a n s mis s io n Droplet spray The ma j or r out e of t r ansmission is person t o person directly by respiratory droplets DIVISION O F INFECTIO US DISEAS E AND GASTRO ENT E RO LO GY
?EpidemiologyRoutes of Transmissionrespiratory dropletsdirect contact打indirect contactDIVISION OFINFECTIOUS DISEASE ANDGASTROENTEROLOGY
Epidemio logy DIVISION O F INFECTIO US DISEAS E AND GASTRO ENT E RO LO GY R o u t e s of T r a n s mis s io n □ respiratory droplets □ direct contact □ indirect contact