Immune responses to SARS-CoV-2 in three children of parents with symptomatic COVID-19

S Tosif; MR Neeland; P Sutton; PV Licciardi; S Sarkar; KJ Selva; LAH Do; C Donato; Z Quan Toh; R Higgins; C Van de Sandt; MM Lemke; CY Lee; SK Shoffner; KL Flanagan; KB Arnold; FL Mordant; K Mulholland; J Bines; K Dohle; DG Pellicci; N Curtis; S McNab; A Steer; R Saffery; K Subbarao; AW Chung; K Kedzierska; DP Burgner; NW Crawford

Journal article

Immune responses to SARS-CoV-2 in three children of parents with symptomatic COVID-19

S Tosif, MR Neeland, P Sutton, PV Licciardi, S Sarkar, KJ Selva, LAH Do, C Donato, Z Quan Toh, R Higgins, C Van de Sandt, MM Lemke, CY Lee, SK Shoffner, KL Flanagan, KB Arnold, FL Mordant, K Mulholland, J Bines, K Dohle Show all

Nature Communications | NATURE PORTFOLIO | Published : 2020

DOI: 10.1038/s41467-020-19545-8

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Abstract

Compared to adults, children with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have predominantly mild or asymptomatic infections, but the underlying immunological differences remain unclear. Here, we describe clinical features, virology, longitudinal cellular, and cytokine immune profile, SARS-CoV-2-specific serology and salivary antibody responses in a family of two parents with PCR-confirmed symptomatic SARS-CoV-2 infection and their three children, who tested repeatedly SARS-CoV-2 PCR negative. Cellular immune profiles and cytokine responses of all children are similar to their parents at all timepoints. All family members have salivary anti-SARS-CoV-2 antibodies detected..

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University of Melbourne Researchers

Melanie Neeland Author

Phil Sutton Author

Paul Licciardi Author

Kevin John Selva Author

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Grants

Awarded by Department of Health, Australian Government

Funding Acknowledgements

We acknowledge Dale Godfrey and Adam Wheatley for generously sharing recombinant proteins related to SARS-CoV-2. We also acknowledge Bruce Wines and Mark Hogarth for generously sharing their recombinant Fc-dimers. M.R.N. is supported by a Melbourne Children's LifeCourse Fellowship, P.V.L. is supported by NHMRC Career Development Fellowship (#1146198), P.S. is supported by a DHB Foundation Fellowship. This work was supported by Jack Ma Foundation to K.K., A.W.C., and K.S., the a2 Milk Foundation to KS, the Clifford Craig Foundation to KLF and KK, NHMRC Leadership Investigator Grant to K.K. (1173871), NHMRC Investigator Grant to K.S. (1177174), NHMRC Program Grant to K.K. (1071916), Research Grants Council of the Hong Kong Special Administrative Region, China (#T11-712/19-N) to K.K. A.W.C. is supported by a NHMRC Career Development Fellowship (#1140509), KK by NHMRC Senior Research Fellowship (1102792), C.E.S. has received funding from the European Union's Horizon 2020 research and innovation program under the Marie Skodowska-Curie grant agreement (#792532), and DPB by NHMRC Investigator Grant (#1175744). This work is supported by Victorian Government's Medical Research Operational Infrastructure Support Program. The Melbourne WHO Collaborating Centre for Reference and Research on Influenza is supported by the Australian Government Department of Health.