Active clinical trials for "Measles"

This study will compare three consistency lots of ProQuad to each other as well as to M-M-R II and Varivax, administered concomitantly at different injection sites, with respect to immunogenicity, safety, and tolerability.

The purpose of this observer blinded study is to provide information on vaccine immunogenicity and reactogenicity in comparison with the US standard of care (ProQuad®) when administered with Hepatitis A vaccine and Pneumococcal vaccine.

This is a modified single-blind, randomized, parallel-group, comparative, multicenter study to test Menactra vaccine in toddlers. Primary Objectives: To evaluate the antibody responses induced by Measles, Mumps, Rubella, and Varicella (MMRV) vaccine when administered alone or concomitantly with Menactra vaccine. To evaluate the antibody responses induced by Pneumococcal Conjugated Vaccine (PCV) when administered alone or concomitantly with Menactra vaccine. Observational Objectives: Safety - To describe the safety profile throughout the course of the study from Day 0 up to 6 months after the last study vaccination[s]) in subjects in the study groups. Immunogenicity: - To describe the antibody responses to meningococcal serogroups A, C, Y, and W-135, 30 days after the first and second Menactra vaccine administration in a subset of subjects in the first study group.

This clinical trial will evaluate the safety of two injections of Menactra® Vaccine in subjects at 9 months and at 12 months of age when the second dose is given concomitantly with other pediatric vaccines routinely administered in the US. Safety Objective: To describe the safety profile of two doses of Menactra® Vaccine.

This study will compare the immunogenicity and safety of the MeMuRu-OKA vaccine administered subcutaneously or using an alternative administration route.

The purpose of this study is to test the safety of a measles, mumps, and rubella study vaccine made from a new measles stock seed (a component of the vaccine made in 2003) with rHA (recombinant human albumin).

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)

Several studies on the duration of immunity after the vaccine try to explain the cause of susceptibility to the measles virus even after the administration of 2 doses of the viral triple vaccine, based not only on the finding of low vaccine coverage. In the recent measles epidemic that occurred in Brazil, beginning in 2018, we verified the predominance of the D8 genotype, with different strains. The detection of these strains is an important molecular marker to define different introductions of the same genotype, in the same geographic area, enabling better knowledge and discussion of the control strategies used. Some news circulated in the press about a possible failure of the vaccine to protect the vaccinated population against this D8 genotype. Regarding the mumps and rubella components, analyzes of the duration of immunity will be carried out for these 2 components, in addition to measles, since the children received in 2012 the triple viral vaccine, and there are data in the literature on the drop in antibodies to mumps, over the years. For rubella, Brazil received the rubella virus elimination certificate, and the results of duration of immunity from this study, may collaborate to know the profile of duration of immunity to rubella, in this cohort vaccinated in 2012, and who is living in a period without circulation of the wild virus.

The overall objective is to test the impact of short message service (SMS) reminders, with or without unconditionally provided mobile-money incentives, can improve measles vaccination coverage in rural western Kenyan infants.

The purpose of this study is to investigate for the broad immunological effects of administering measles vaccine (MV) and diphtheria-tetanus-whole cell pertussis vaccine (DTP) to 9 month old Gambian infants, either alone or together. Effects on vaccine-specific immune responses, innate immunity, and immune memory were studied. The hypothesis is that when MV and DTP are given together there will be more inflammation and this will interfere with generation of immunity to the vaccine and to other non-vaccine related stimuli.