| Germs | 2 month - 1 yr | 1 yr - 2 yr | 2 yr - 5 yr | >5 yr | Total |
| H .influenzae | 43 | 13 | 2 | 9 | 67 |
| S. pneumoniae | 19 | 9 | 15 | 11 | 54 |
| N. meningitidis | 2 | 3 | 8 | 5 | 18 |
| Group B Streptococcus | 6 | 5 | 0 | 0 | 11 |
| Group C Streptococcus | 1 | 0 | 0 | 5 | 6 |
| Salmonella | 2 | 2 | 0 | 0 | 4 |
| E. coli | 0 | 2 | 0 | 0 | 2 |
| Klebsiella pneumoniae | 2 | 0 | 0 | 0 | 2 |
| Pasteurella sp | 1 | 1 | 0 | 0 | 2 |
| Staphylococcus aureus | 0 | 2 | 0 | 0 | 2 |
| Citrobacter sp | 0 | 1 | 0 | 0 | 1 |
| Pseudomonas aeruginosa | 0 | 0 | 1 | 0 | 1 |
| Other streptococcus sp | 1 | 0 | 0 | 0 | 1 |
| Total | 77 | 38 | 26 | 30 | 171 |