Decline in Vaccine-Type Streptococcus pneumoniae Serotypes Following Pneumococcal Conjugate Vaccine Introduction in Madagascar.
J Infect Dis
; 224(12 Suppl 2): S285-S292, 2021 09 01.
Article
en En
| MEDLINE
| ID: mdl-34469557
ABSTRACT
BACKGROUND:
The 10-valent conjugate vaccine (PCV10) was introduced into the Extended Program on Immunization in Madagascar. We assessed the impact of PCV10 on the targeted pneumococcal serotypes among children < 5 years of age at Centre Hospitalier Universitaire Mère Enfant Tsaralalàna.METHOD:
Between 2012 and December 2018, cerebrospinal fluid (CSF) samples were collected and tested for S. pneumoniae by culture, and antigen tests. The Sentinel Site Laboratory (SSL) referred available CSF samples to the Regional Reference Laboratory (RRL) for real-time polymerase chain reaction confirmatory testing and serotyping.RESULTS:
In total, 3616 CSF specimens were collected. The SSL referred 2716 to the RRL; 125 were positive for S. pneumoniae. At the RRL, 115 samples that tested positive for S. pneumoniae were serotyped; PCV10 serotypes accounted for 20%. Compared to the pre-PCV period, the proportion of S. pneumoniae detected declined from 22% to 6.6%, (P < .05), the proportion of PCV10 serotypes as the cause of pneumococcal meningitis cases declined by 26% following vaccine introduction.CONCLUSIONS:
In our findings, PCV10 introduction resulted in a decline of meningitis caused by S. pneumoniae and PCV10 vaccine serotypes.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Infecciones Neumocócicas
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Streptococcus pneumoniae
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Líquido Cefalorraquídeo
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Vacunas Conjugadas
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Vacunas Neumococicas
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Meningitis Neumocócica
Límite:
Child, preschool
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Female
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Humans
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Infant
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Male
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Newborn
País/Región como asunto:
Africa
Idioma:
En
Revista:
J Infect Dis
Año:
2021
Tipo del documento:
Article
País de afiliación:
Madagascar