Disposable versus reusable hypodermic syringes: study of feasible effects upon the virus of the live, attenuated measles vaccine

Authors

  • Edda de Rizzo Instituto Butantan; Serviço de Virologia; Seção de Cultura de Tecidos e Controle
  • Francisco Liauw Woe Fang Instituto Butantan; Serviço de Virologia; Seção de Cultura de Tecidos e Controle
  • Neuza Maria Frazatti Gallina Instituto Butantan; Serviço de Virologia; Seção de Cultura de Tecidos e Controle
  • Célia Sayoko Takata Instituto Butantan; Serviço de Virologia; Seção de Cultura de Tecidos e Controle
  • Cosue Miyaki Instituto Butantan; Serviço de Virologia; Seção de Cultura de Tecidos e Controle
  • Ana Maria Aratangy Pluciennik FESIMA
  • Augusta Sato Coordenadoria de Saúde da Comunidade
  • Michel Marie Pral Instituto Butantan; Serviço de Virologia; Seção de Cultura de Tecidos e Controle
  • Elizabeth Mieko Furusho Pral Instituto Butantan; Serviço de Virologia; Seção de Cultura de Tecidos e Controle
  • Inácio França Mendes Instituto Butantan; Serviço de Virologia; Seção de Cultura de Tecidos e Controle

DOI:

https://doi.org/10.1590/S0034-89101986000600009

Keywords:

Measles vaccine, Efficacy, Syringes, Comparative studies

Abstract

The study was performed in the State of S.Paulo, SP, Brazil, with the purpose of finding out whether reusable (glass) and disposable hypodermic syringes used for administration of live attenuated measles vaccines would interfere with their virus. At least six different experiments using two distinct lots of vaccines were carried out. Each time, a lot was reconstituted with reusable and disposable syringes in parallel to form separate pools from which samples were collected hourly from zero to the sixtieth hour after reconstitution for virus titration in monolayers of Vero cells. The straight line regression system chosen for the analysis of the results demonstrated that although vaccines reconstituted with both types of syringes presented a statistically significative titer decrease as time went by, there was a more pronounced decrease for vaccines manipulated with the glass syringes. The fact that the disposable syringes affected the titer of the virus present in the live, attenuated measles vaccine less confirmed that the preconization and routine usage of this type of syringe by the Health Department of the State of S.Paulo, Brazil, is ideal and highly recommended because it preserves the vaccine from reconstitution to administration better, and thus, its efficacy in preventing the infection.

Published

1986-12-01

Issue

Section

Original Articles

How to Cite

Rizzo, E. de, Fang, F. L. W., Gallina, N. M. F., Takata, C. S., Miyaki, C., Pluciennik, A. M. A., Sato, A., Pral, M. M., Pral, E. M. F., & Mendes, I. F. (1986). Disposable versus reusable hypodermic syringes: study of feasible effects upon the virus of the live, attenuated measles vaccine . Revista De Saúde Pública, 20(6), 475-480. https://doi.org/10.1590/S0034-89101986000600009