Vaccine vial stopper performance for fractional dose delivery of vaccines

Shortages of vaccines such as inactivated poliovirus and yellow fever vaccines have been addressed by administering reduced—or fractional—doses, as recommended by the World Health Organization Strategic Advisory Group of Experts on Immunization, to expand population coverage in countries at risk. We...

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Main Authors: Courtney Jarrahian, Daniel Myers, Ben Creelman, Eugene Saxon, Darin Zehrung
Format: Article
Language:English
Published: Taylor & Francis Group 2017-07-01
Series:Human Vaccines & Immunotherapeutics
Subjects:
Online Access:http://dx.doi.org/10.1080/21645515.2017.1301336
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author Courtney Jarrahian
Daniel Myers
Ben Creelman
Eugene Saxon
Darin Zehrung
author_facet Courtney Jarrahian
Daniel Myers
Ben Creelman
Eugene Saxon
Darin Zehrung
author_sort Courtney Jarrahian
collection DOAJ
description Shortages of vaccines such as inactivated poliovirus and yellow fever vaccines have been addressed by administering reduced—or fractional—doses, as recommended by the World Health Organization Strategic Advisory Group of Experts on Immunization, to expand population coverage in countries at risk. We evaluated 3 kinds of vaccine vial stoppers to assess their performance after increased piercing from repeated withdrawal of doses needed when using fractional doses (0.1 mL) from presentations intended for full-dose (0.5 mL) delivery. Self-sealing capacity and fragmentation of the stopper were assessed via modified versions of international standard protocols. All stoppers maintained self-sealing capacity after 100 punctures. The damage to stoppers measured as the fragmentation rate was within the target of ≤ 10% of punctures resulting in a fragment after as many as 50 punctures. We concluded that stopper failure is not likely to be a concern if existing vaccine vials containing up to 10 regular doses are used up to 50 times for fractional dose delivery.
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spelling doaj.art-4eab9abe8ba64b9fb0fa5128e665d3032023-09-22T08:17:49ZengTaylor & Francis GroupHuman Vaccines & Immunotherapeutics2164-55152164-554X2017-07-011371666166810.1080/21645515.2017.13013361301336Vaccine vial stopper performance for fractional dose delivery of vaccinesCourtney Jarrahian0Daniel Myers1Ben Creelman2Eugene Saxon3Darin Zehrung4PATHPATHPATHPATHPATHShortages of vaccines such as inactivated poliovirus and yellow fever vaccines have been addressed by administering reduced—or fractional—doses, as recommended by the World Health Organization Strategic Advisory Group of Experts on Immunization, to expand population coverage in countries at risk. We evaluated 3 kinds of vaccine vial stoppers to assess their performance after increased piercing from repeated withdrawal of doses needed when using fractional doses (0.1 mL) from presentations intended for full-dose (0.5 mL) delivery. Self-sealing capacity and fragmentation of the stopper were assessed via modified versions of international standard protocols. All stoppers maintained self-sealing capacity after 100 punctures. The damage to stoppers measured as the fragmentation rate was within the target of ≤ 10% of punctures resulting in a fragment after as many as 50 punctures. We concluded that stopper failure is not likely to be a concern if existing vaccine vials containing up to 10 regular doses are used up to 50 times for fractional dose delivery.http://dx.doi.org/10.1080/21645515.2017.1301336fractional dosingimmunizationpoliovirusprimary packagingvial stoppersvaccine deliveryyellow fever
spellingShingle Courtney Jarrahian
Daniel Myers
Ben Creelman
Eugene Saxon
Darin Zehrung
Vaccine vial stopper performance for fractional dose delivery of vaccines
Human Vaccines & Immunotherapeutics
fractional dosing
immunization
poliovirus
primary packaging
vial stoppers
vaccine delivery
yellow fever
title Vaccine vial stopper performance for fractional dose delivery of vaccines
title_full Vaccine vial stopper performance for fractional dose delivery of vaccines
title_fullStr Vaccine vial stopper performance for fractional dose delivery of vaccines
title_full_unstemmed Vaccine vial stopper performance for fractional dose delivery of vaccines
title_short Vaccine vial stopper performance for fractional dose delivery of vaccines
title_sort vaccine vial stopper performance for fractional dose delivery of vaccines
topic fractional dosing
immunization
poliovirus
primary packaging
vial stoppers
vaccine delivery
yellow fever
url http://dx.doi.org/10.1080/21645515.2017.1301336
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