Increased incidence of invasive group A streptococcal disease in Ireland, 2012 to 2013 Meehan, M and Murchan, S and Bergin, S and O’Flanagan, D and Cunney, R, Eurosurveillance, 18, 20556 (2013), https://doi.org/10.2807/1560-7917.ES2013.18.33.20556