Beta-hemolytic streptococci cause milder infections than alpha-hemolytic streptococci.

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Hemolysis pattern does not determine how severe an infection will be. Beta-hemolytic streptococci include major pathogens such as Group A and Group B strep that can cause very serious diseases—necrotizing fasciitis, streptococcal toxic shock syndrome, rheumatic fever, and neonatal sepsis. Alpha-hemolytic streptococci cover the viridans group, which often cause milder dental infections and subacute endocarditis, while Streptococcus pneumoniae can cause severe pneumonia or meningitis. Because beta-hemolytic organisms can produce life-threatening infections, the statement is false.