Measuring the effectiveness of an automated text messaging active surveillance system for COVID-19 in the south of Ireland, March to April 2020 Barrett, Peter M and Bambury, Niamh and Kelly, Louise and Condon, Rosalind and Crompton, Janice and Sheahan, Anne and on behalf of the regional Department of Public Health, Eurosurveillance, 25, 2000972 (2020), https://doi.org/10.2807/1560-7917.ES.2020.25.23.2000972