Table 3. Prevalence of antibodies to seasonal coronaviruses HKU1, OC43, NL63 and 229E spike and nucleoprotein in HOS-P, MIS-P and CTL children, France, April–June 2020 (n =184).
| Virus | Antigen | HOS-P SARS-CoV-2-positive n = 54 |
MIS-P SARS-CoV-2-positive n = 15 |
CTL SARS-CoV-2-negative n = 115 |
p (CTL vs HOS-P) | p (CTL vs MIS-P) |
p (HOS-P vs MIS-P) |
|||
|---|---|---|---|---|---|---|---|---|---|---|
| n | % | n | % | n | % | |||||
| HCoV-HKU1 | Full S | 46 | 85.2 | 15 | 100 | 100 | 87.0 | NS | NS | NS |
| N | 19 | 35.2 | 11 | 73.3 | 52 | 45.2 | NS | NS | 0.0166 | |
| HCoV-OC43 | Full S | 50 | 92.6 | 15 | 100 | 111 | 96.5 | NS | NS | NS |
| N | 18 | 33.3 | 12 | 80.0 | 47 | 40.9 | NS | 0.0053 | 0.0024 | |
| HCoV-229E | Full S | 44 | 81.5 | 13 | 86.7 | 77 | 67.0 | NS | NS | NS |
| N | 12 | 22.2 | 9 | 60.0 | 34 | 29.6 | NS | 0.0372 | 0.0095 | |
| HCoV-NL63 | Full S | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| N | 49 | 90.7 | 14 | 93.3 | 101 | 87.8 | NS | NS | NS | |
CTL: SARS-CoV-2-seronegative control group; HOS-P: SARS-CoV-2-seropositive hospitalised patients who did not develop an MIS; MIS-P: SARS-CoV-2-seropositive patients with multisystemic inflammatory syndrome; HCoV: seasonal coronaviruses; NA: not applicable; NS: non-significant; SARS-CoV-2: severe acute respiratory syndrome coronavirus 2.