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Immunogenicity of a combined schedule of trivalent oral and inactivated polio vaccines in South African infants.

08:00 EDT 13th June 2019 | BioPortfolio

Summary of "Immunogenicity of a combined schedule of trivalent oral and inactivated polio vaccines in South African infants."

: South Africa transitioned from using live-attenuated trivalent oral polio vaccine (tOPV), to a combination of tOPV and inactivated polio vaccine (IPV) in April 2009. We evaluated the immunogenicity of the South African combined tOPV-IPV schedule versus the tOPV-only schedule in South African infants. : Serum samples of HIV-unexposed infants were analysed retrospectively from two cohorts; infants enrolled from April 2005 through June 2006 and infants enrolled from December 2009 to April 2010. The primary vaccination series of the tOPV-only schedule included doses at birth, 6, 10 and 14 weeks, and the tOPV-IPV schedule included tOPV at birth and 6 weeks and IPV at 6, 10 and 14 weeks. Serum polio neutralising antibody titres to serotype-1, serotype-2 and serotype-3 were evaluated in infants at 18 weeks of age. : Infants who received the tOPV-IPV schedule had higher GMTs than infants who received tOPV-only for serotype-2 (9.63 vs. 8.80, P < 0.001) and serotype-3 (10.01 vs. 8.53, P < 0.001), as well as higher sero-protective titres for serotype-1 (100% vs. 96%, P = 0.014). : Our data support the option of the South African combined polio vaccination schedule as an immunogenic option for a combined schedule.

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This article was published in the following journal.

Name: Expert review of vaccines
ISSN: 1744-8395
Pages: 1-4

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Medical and Biotech [MESH] Definitions

Vaccines used to prevent POLIOMYELITIS. They include inactivated (POLIOVIRUS VACCINE, INACTIVATED) and oral vaccines (POLIOVIRUS VACCINE, ORAL).

Vaccines in which the infectious microbial nucleic acid components have been destroyed by chemical or physical treatment (e.g., formalin, beta-propiolactone, gamma radiation) without affecting the antigenicity or immunogenicity of the viral coat or bacterial outer membrane proteins.

Vaccines or candidate vaccines used to prevent infection with DENGUE VIRUS. These include live-attenuated, subunit, DNA, and inactivated vaccines.

Vaccines used to prevent infection by viruses in the family ORTHOMYXOVIRIDAE. It includes both killed or attenuated vaccines. The composition of the vaccines is changed each year in response to antigenic shifts and changes in prevalence of influenza virus strains. The vaccine is usually bivalent or trivalent, containing one or two INFLUENZAVIRUS A strains and one INFLUENZAVIRUS B strain.

Vaccines or candidate vaccines containing inactivated hepatitis B or some of its component antigens and designed to prevent hepatitis B. Some vaccines may be recombinantly produced.

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