Ladhani Shamez N, Amin-Chowdhury Zahin, Amirthalingam Gayatri, Demirjian Alicia, Ramsay Mary Elizabeth
Immunisation and Countermeasures Division, Public Health England Colindale, London, UK
Paediatric Infectious Diseases Research Group, St George's University of London (SGUL), London, United Kingdom.
Arch Dis Child. 2020 Jul;105(7):613-615. doi: 10.1136/archdischild-2020-319363. Epub 2020 May 7.