View clinical trials related to Measles.
Filter by:We conducted a longitudinal study to assess the immunogenicity of standard-titer measles vaccine in HIV-infected and uninfected Zambian children. The study hypothesis was that HIV-infected children would have higher rates of primary and secondary measles vaccine failure compared to uninfected children, contributing to decreased levels of population immunity to measles and facilitating measles virus transmission in regions of high HIV prevalence.
This is an immunogenicity study evaluating the development of the immune response of healthy infants following primary vaccination with Attenuvax at 6 or 9 months of age compared with responses in 12 month-old infants receiving MMR-II. Responses of infants receiving an early two dose measles vaccine regimen with the first dose given at 6 or 9 months followed by a second dose administered at 12 months will also be compared to infants given a single dose at 12 months of age (Table 2). The current approved regimen for measles vaccination is a first vaccination at 12-15 months and a subsequent vaccination at school entry. A secondary endpoint of this study will be to assess the safety of measles vaccine administered as Attenuvax at 6 or 9 months of age and in an early two dose measles vaccine regimen with Attenuvax administered at 6 or 9 months followed by MMR-II at 12 months of age.
The general objectives of the proposed research work are: A1) to reduce childhood mortality in developing countries through better control of measles infection by finding the best immunization strategy, and A2) to investigate the hypothesis that standard titre measles immunization is associated with non targeted beneficial effects on childhood morbidity and mortality in developing countries. The measurable, specific objectives of the present proposal are: B1) to examine whether a two-dose strategy for measles immunization at 6 and 9 months of age can reduce measles incidence by 50% through better coverage or improved seroconversion, and B2) to examine whether a two-dose strategy for measles immunization at 6 and 9 months of age can reduce childhood mortality by 20% through better coverage, better protection against measles or non targeted beneficial effects, and B3) to determine the magnitude and duration of non-measles related changes in morbidity patterns after standard titre measles immunization, in particular to test whether measles immunization is associated with a 15% reduction in the risk of diarrhoea, and B4) to determine non-measles related immunological changes among recipients of measles vaccine in order to establish possible pathways for the non targeted effects of standard titre measles immunization.
Few data exist on long-term persistence of measles antibodies after vaccination of West African infants. The data that do exist indicate that the antibody titres decline very rapidly. Our data would be the first to describe the persistence of measles antibodies after two doses of measles vaccine, and the study would allow us to identify unprotected children and offer them revaccination. Since persistence of measles antibodies is of crucial importance to measles control, the study will contribute significantly to the existing knowledge and might have important implications for future eradication programmes.
The specific aims are to examine in Guinea-Bissau: - whether the standard titre Schwarz (SW) or standard-titre Edmonston-Zagreb (EZ) measles vaccine will be the best vaccine strain for use in a routine one-dose measles vaccination schedule and a two-dose measles vaccination schedule in terms of antibody response, protection against measles and child survival, and - whether the standard-titre Edmonston-Zagreb (EZ) vaccine will be suitable for use in a very early two-dose schedule vaccinating at 4½ and 9 months of age
OBJECTIVES - General: To investigate the immunological background for the non-specific effects of diphtheria-tetanus-pertussis (DTP) and measles vaccines on child mortality - Specific: Examine the cytokine responses and possible association with morbidity in a study of DTP vaccinated children who will be randomised to receive a measles vaccine or no vaccine at 4½ months of age. (All children will receive a measles vaccine at 9 months of age)
Objective It is the objective to test whether the use of prophylactic antibiotics in measles infection will reduce the incidence of post-measles pneumonia and/or admissions to hospital with 50%. The possible impact on other complications of severe measles will also be measured.
This is a study to evaluate the immunogenicity and safety of GlaxoSmithKline (GSK) Biologicals combined measles-mumps-rubella varicella candidate vaccine given to healthy children in their second year of life.
This is a study to evaluate the immunogenicity and safety of GlaxoSmithKline (GSK) Biologicals combined measles-mumps-rubella varicella candidate vaccine given to healthy children in their second year of life.
This is a study to assess the immunogenicity and safety of GlaxoSmithKline (GSK) Biologicals live attenuated measles-mumps-rubella-varicella vaccine given to healthy children in their second year of life.