Table 3. Pathogens responsible for blood stream infections according to age group*.
Pathogen† | Isolates | Age Groups (Total patients = 1084) | Median age (IQR)‡ | |||
2 - <6 mo (n = 20) | 6 mo - <1 yr (n = 77) | 1 - <5 yr (n = 503) | 5–14 yr (n = 484) | |||
Gram-positive | ||||||
Streptococcus pneumoniae | 6 (4) | 0 | 0 | 4 (9) | 2 (2) | 41 (31–67) |
Gram-negative | ||||||
Salmonella enterica serotype Typhi | 107 (73) | 0 | 1 (33) | 35 (74) | 71 (73) | 76 (45–118) |
Salmonella enterica serotype Paratyphi A | 30 (20) | 0 | 0 | 6 (13) | 24 (25) | 117 (71–139) |
Salmonella enterica serotype Typhimurium | 2 (1) | 0 | 1 (33) | 1 (2) | 0 | 16 (12–19) |
Haemophilus influenzae type b | 1 (1) | 0 | 0 | 1 (2) | 0 | 32 |
Escherichia coli | 1 (1) | 0 | 1 (33) | 0 | 0 | 10 |
Total bacterial isolates by blood culture | 147 (100) | 0 | 3 | 47 | 97 | 79 (45–121) |
Rickettsia (PCR) | ||||||
Rickettsia typhi | 22 | 1 | 1 | 6 | 14 | 78 (30–112) |
Total microbiological diagnosis | 169†† | 1 | 4 | 53 | 111 | 78 (44–121) |
Data are no. (%) or no. unless stated otherwise. Percents shown for column totals only for bacterial isolates by blood culture.
Pathogens isolated by blood culture unless indicated otherwise.
Median age in months.
4 patients with S. Typhi and 1 patient with S. Paratyphi A were PCR positive for R. typhi.