Rodríguez-Muñoz L, Solórzano-Santos F, Flores-Reyes EA, Escalante-López J, Rodríguez-Balderas DE, Echániz-Avilés G, Carnalla-Barajas MN. Invasive infections by non-vaccine serotypes of Streptococcus pneumoniae: a growing threat.
Bol Med Hosp Infant Mex 2019;
76:281-286. [PMID:
31769441 DOI:
10.24875/bmhim.19000046]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background
In Mexico, 70.6% of serotypes causing invasive pneumococcal disease were covered since the application of the PCV13 vaccine in children under 5 years of age. After several years of immunization, cases of disease caused by the serotypes included in the vaccine have decreased. However, a replacement due to serotypes not included in the vaccine has been observed.
Case report
Three cases of pediatric patients who developed invasive disease due to serotypes not included in PCV13 are described: one with meningitis and bacteremia (serotype 15C), and two with pneumonia, of which one complicated with effusion (serotype 35B). Patients were treated in a pediatric hospital in Saltillo, Coahuila, from 2015 to 2018.
Conclusions
Three serious cases due to serotypes of Streptococcus pneumoniae not included in PCV13 were reported in a single pediatric hospital in a northern state of Mexico. This phenomenon is taking place nationwide and worldwide an increase of cases of invasive disease due to pneumococcal serotypes not included in the vaccine currently used.
Collapse