Table 2.
Bacterial and viral causes of fever in infants <90 days of age.
| Invasive bacterial infection (IBI) | Viral infection | |||
|---|---|---|---|---|
| n = 25 (49.0%) | n = 14 (27.5%) | |||
| Focus | Urosepsis | n = 18 | URT infection | n = 6 |
| BC-positive | n = 9 | Meningitis | n = 4 | |
| Meningitis | n = 1 | Pneumonia | n = 3 | |
| Endocarditis | n = 1 | Gastroenteritis | n = 1 | |
| Pneumonia | n = 2 | |||
| Pathogen | E. coli | n = 15 | Enterovirus | n = 7 |
| GBS | n = 5 | Rhinovirus | n = 3 | |
| Kl. oxytoca | n = 1 | Rotavirus | n = 1 | |
| E. faecalis | n = 2 | RSV | n = 1 | |
| Kl. pneumoniae | n = 2 | Corona NB | n = 1 | |
| Corona NL 63 | n = 1 | |||
URT, Upper respiratory tract; BC, blood culture; GBS, group B streptococcus (streptococcus agalactiae); RSV, respiratory syncytial virus; URT infection: virus detected by multiplex PCR from nasopharyngeal aspirate; for n = 12 cases (23.5%) of suspected LOS no microbial pathogen was detected (unknown cause of fever).