The incidence of invasive group A streptococcal infections has risen in the US. Similar observations have been reported in other parts of the world. Authors Joshua Osowicki, MBBS, PhD, of Murdoch Children's Research Institute and Theresa L. Lamagni, MSc, PhD, of the United Kingdom Health Security Agency join JAMA Deputy Editor Preeti Malani, MD, MSJ, to discuss the public health challenge posed by group A strep. Related Content:

• Invasive Group A Streptococcal Disease in the US
• Invasive Group A Streptococcal Infections in 10 US States