[Invasive pneumococcal disease and consolidated pneumonia in infants: one year of surveillance in three Chilean health care centers].
OBJECTIVE
To describe frequency and type of invasive pneumococcal diseases (IPD) and consolidated pneumonia (CP) in Chilean infants.


METHODS
One-year prospective surveillance in three health care centers. PID surveillance: blood culture in infants with suspected invasive bacterial disease or with fever higher than 39 degrees C axillary without focus or with acute otitis media. CP surveillance: blood culture and independent evaluation of chest X-ray in infants with suspected pneumonia.


RESULTS
IPD: in 4,369 infants studied, 58 cases of invasive bacterial diseases were identified, 37 (64%) due to S. pneumoniae. Rates of IPD: 110/100,000 (Chilian) and 288/100,000 (Valparaiso). Serotypes identified: 18C(n: 8), 14 (n: 8), 19A(n: 5), others (n: 12). CP: in 3,005 infants 762 CP were detected. Rates of CP: 2,918/100,000 (Chilian) and 5,547/100,000 (Valparaiso).


CONCLUSIONS
Results support the relevance of S. pneumoniae as the main cause of invasive bacterial disease and the high frequency of CP in this age group in Chile.
Abarca V
Katia
K
Hospital Clínico, Pontificia Universidad Católica de Chile, Santiago, Chile. katia@med.puc.cl
Vergara F
Rodrigo
R
Tassara P
Enzo
E
Ibáñez W
Isabel
I
García B
Cristian
C
Potin S
Marcela
M
D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D002675:Child, Preschool; D002677:Chile / Q000453:epidemiology; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011008:Pneumococcal Infections / Q000145:classification / Q000175:diagnosis / Q000453:epidemiology*; D011018:Pneumonia, Pneumococcal / Q000175:diagnosis / Q000453:epidemiology; D011159:Population Surveillance / Q000379:methods*; D011446:Prospective Studies; D012703:Serotyping; D013296:Streptococcus pneumoniae / Q000145:classification / Q000187:drug effects / Q000302:isolation & purification
D000900:Anti-Bacterial Agents