Active clinical trials for "Pneumococcal Infections"

The purpose of this study is to assess the safety, tolerability and immunogenicity of a 13-valent Pneumococcal conjugate vaccine (13vPnC) in older infants and children who have not previously been immunized with Pneumococcal vaccine.

In the UK, infants currently receive a 5-in-1 vaccine (Pediacel) at 2, 3 and 4 months of age, which protects against diphtheria, tetanus, pertussis (whooping cough), polio and Haemophilus influenzae type b (Hib). Infants also routinely receive a meningococcal group C vaccine (MenC) at 3 and 4 months and a 13-valent pneumococcal vaccine (Prevenar13) at 2 and 4 months of age. This study aims to offer infants a 6-in-1 vaccine (Infanrix-Hexa)that also helps protect against hepatitis B alongside the other routine vaccinations in the UK infant immunisation schedule and assess their immune responses to the different vaccines. Hepatitis B virus infects the liver and usually affects adults, but children can be infected through close contact with carriers of the virus. Children with hepatitis B infection may not have symptoms for many years but may go on to develop liver failure, cirrhosis and cancer. Many other countries already use Infanrix-Hexa and this study is being undertaken to help decide whether the UK can do the same. Babies taking part in this study will receive Infanrix-Hexa instead of Pediacel. All other vaccines given will be the same as in the routine schedule but will include one MenC vaccine instead of 2 doses because the UK infant immunisation schedule is soon going to change so that all babies will receive only one MenC vaccine at 3 months of age. There are currently several licensed MenC vaccines that can be given to babies. In order to check whether there are differences in protection, babies taking part will randomly receive one of 3 MenC-containing vaccines: NeisVacC, Menjugate or Menitorix. Studies have already shown that one dose of Neis-Vac or Menjugate given to babies at 3 months provides similar protection against MenC infection as two doses given at 3 and 4 months. Menitorix protects against both Hib and MenC, so babies in the group receiving MenitorixTM will have an extra dose of Hib which is also included in Infanrix-Hexa but might have a lower antibody response to MenC compared to the other two MenC vaccines, although all infants should be well-protected after their 12-month booster vaccinations, which also contain Menitorix.

The purpose of the study is to see if an investigational vaccine for Streptococcus pneumonia disease (V114) has comparable safety, tolerability, and antibody response to Pneumococcal Polysaccharide Vaccine (PNEUMOVAX® 23) and 13-valent Pneumococcal Conjugate Vaccine (PREVNAR 13®) when administered to healthy adults 50 years of age or older. The primary hypothesis is the serotype-specific immunoglobulin G (IgG) geometric mean concentrations (GMCs) as measured by the pneumococcal electrochemiluminescence (Pn ECL) assay at one month postvaccination in subjects who receive V114 will be noninferior to those measured in subjects who receive PNEUMOVAX® 23.

Pneumonia is the most common reason for admission of Fijian children to hospitals. The most common germ causing pneumonia is "streptococcus pneumoniae." It is a common cause of meningitis (infection around the brain and spinal cord), ear infections, and blood infections and it lives in the nose of humans. A vaccine has been developed that will help prevent these common diseases but prevents only about one quarter of pneumonia cases and it is expensive. This study explores new ways of giving this vaccine that are affordable, safe, and effective in countries such as Fiji. About 550 Fijian infants presenting at 6 weeks of age, for their first diptheria, tetanus, toxoid, pertussis vaccine immunization, to one of the participating Health Centers or Colonial War Memorial Hospital in urban Suva, Fiji will be enrolled. Children will remain in the study for 2 years. Study procedures include full vaccination against 7 types of pneumococcus, blood tests, and nasal swabs.

The purpose of this study is to evaluate the safety and immune response of a conjugated pneumococcal vaccine compared to a licensed 23-valent polysaccharide pneumococcal vaccine in elderly adults. Study participants will include 180 adults, 65 years of age or greater. Participants will be randomly assigned to 1 of 3 possible groups. Subjects will maintain a study diary to record side effects and oral temperatures for 7 days following each vaccination. Blood samples will be collected before and 1 month following each dose of vaccine or placebo. Participants will be involved in study related procedures for up to 268 days.

This prospective randomized evaluation of pneumococcal vaccine immunization of pregnant mothers, followed by pneumococcal conjugate immunization of their children is designed to assess the effects of these strategies on the immunogenicity and safety of both vaccines. We hypothesize that maternal followed by infant immunization will be safe and will provide higher levels of antibody from birth through 12 months of age.

This household-based prospective cohort study aims to stablish the household transmission of Respiratory syncytial virus and S. pneumoniae especially in the elderly and infants/children as well as inter-relationship between S. pneumoniae and Respiratory syncytial virus.

The primary objectives of this study were to assess the immunogenicity and the tolerance of the heptavalent pneumococcal conjugate vaccine (Prevenar) in young infants (2 months of age) with sickle cell disease when administred at 2,3, and 4 months of age.

Antibody deficiencies and complement deficiencies are the most frequent Primary immunodeficiencies (PIDs) in adults, and are associated with greatly increased susceptibility to recurrent and/or severe bacterial infections - especially upper and lower respiratory tract infections and meningitis. The literature data suggest that PIDs are under-diagnosed in adults. The current European and US guidelines advocate screening adults for PIDs if they present recurrent benign especially upper and lower respiratory tract infections, or if they have experienced at least two severe bacterial infections and/or have a recurrent need for intravenous antibiotics. The objective of the demonstrate the interest of PIDs screening in adult patients who present such recurrent infections and/or after the first severe bacterial infection, especially when the patients do not present with known, etiologically relevant comorbidities.

The study's aim is to enhance current immunization activities in community pharmacies through targeting the two most commonly available non-seasonal vaccines in community pharmacies, namely pneumococcal and herpes zoster vaccination services. The study will compare the change in the number of pneumococcal and herpes zoster vaccinations administered in pharmacy from the corresponding 6-month period prior to the intervention to the 6-month intervention period between intervention pharmacies and the control pharmacies.