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Table 4 Comparison of bacterial and/or viral co-infections across different age

From: Co-infection in unvaccinated infants with acute pertussis in Western China (2018–2019): pathogen distribution and impact on disease severity

Pathogen

0–3

3–6

6–12

P value

N = 110

N = 52

N = 12

Bacteria co-infection

62 (56.4%)

25 (48.1%)

9 (75.0%)

0.220

Virus co-infection

26 (23.6%)

14 (26.9%)

2 (16.7%)

0.740

Bacteria-Virus co-infection

22 (20.0%)

13 (25.0%)

1 (8.3%)

0.420