Measles immunization with further attenuated heat-stable measles vaccine using five different methods of administration

Abstract
Further attenuated heat-stable measles vaccine Attenuvax(R) was administered randomly to 109 children using five different methods and a control group (24). Vaccine administration by syringe and needle (0·5 ml) and by jet-injector (0·1 ml) resulted in a high percentage of significant HAI measles antibody titres (≥ 1:24). Vaccine administration by nose drops (0·5 ml), bifurcated needle or needle planted cylinder did not yield satisfactory levels of serum antibody. Morbidity measured over a period of four weeks after administration showed a moderate increase of respiratory symptoms over the controls. Children who showed a positive tuberculin PPD reaction after BCG immunization did not differ from children with a negative tuberculin reaction in regard to their ability to produce a significant HAI measles antibody titre. The study was performed in the Joint Project Machakos, Kenya. The aim was to find a simpler method of administration of this improved vaccine, suitable for community health workers. The vaccine was shown to be less stable under field conditions than suggested by previous reports.

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