Lesson 2
Lesson 2 Scarlet fever. Pseudotuberculosis Scarlet nFever. This disease is the result of infection by streptococci that elaborate none of three pyrogenic (erythrogenic) exotoxins. Β-hemolytic streptococcus group A The incubation period ranges from 1–7 days, with an average of 3 days. nThe onset is acute and is characterized