Infant clusters at the onset of acute respiratory tract infection (swab A) and subsequent presence of symptoms
| Cluster (n=165) | p-value | |||||
| A1 (n=56) | A2 (n=51) | A3 (n=31) | A4 (n=14) | A5 (n=13) | ||
| Symptomatic after 1 week | 38 (67.8) | 43 (84.3) ↑ | 19 (61.3) | 8 (53.3) | 9 (69.2) | 0.121# |
| Symptomatic after 2 weeks | 17 (30.4) | 19 (37.3) ↑ | 4 (12.9) ↓ | 1 (7.1) ↓ | 4 (30.8) | 0.061¶ |
| Symptomatic after 3 weeks | 19 (33.9) | 12 (23.5) | 8 (25.8) | 4 (28.6) | 5 (38.5) | 0.754¶ |
| Continuously symptomatic for ≥3 weeks | 13 (23.3) | 9 (17.6) | 2 (6.5) ↓ | 1 (7.1) | 3 (23.1) | 0.329¶ |
Data are presented as n (%), unless otherwise stated. Statistical analyses were performed using #: Chi-squared; or ¶: Fisher's exact test. Significant overrepresentation (↑) and significant underrepresentation (↓) of presence of symptoms in the clusters was assessed by enrichment analysis. The dominating bacterial families in the clusters are as follows. A1: Moraxellaceae; A2: Moraxellaceae and Streptococcaeae; A3: Streptococcaceae; A4: “Others”; A5: Pasteurellaceae.