The vaccine developed for pneumococcal diseases is a heptavalent conjugate vaccine (PCV 7). This particular vaccine consists of capsular polysaccharides originated from seven different Streptococcus pneumoniae species along with the protein diphtheria crm197 as conjugate antigens. In a month time after inoculation in children this vaccine is able to increase the IgG level sufficiently to combat...

T he effect of pneumococcal conjugate vaccine–7 (PCV-7) in reducing pneumococcal nasopharyngeal (NP) carriage in very low-birth-weight (VLBW) infants has not been studied. Our primary objective was to characterize NP carriage of Streptococcus pneumoniae in a group of VLBW infants (weight, 4011500 g) before administration of the first PCV-7 vaccine (prevaccine) and at 4 to 6 weeks after a 3-dose...

BACKGROUND Streptococcus pneumoniae is a leading and serious coinfection in adults with human immunodeficiency virus (HIV) infection, particularly in Africa. Prevention of this disease by vaccination with the current 23-valent polysaccharide vaccine is suboptimal. Protein conjugate vaccines offer a further option for protection, but data on their clinical efficacy in adults are needed. METHOD...

Objective: Diabetes Mellitus is a health problem that has increasingly become worldwide concern due to its high frequency and complications. Infections in patients with diabetes major cause of mortality morbidity. The purpose this study determine the rates vaccination influenza, pneumococcal, hepatitis B vaccine diabetic patients, their awareness importance necessity vaccination, how they reach...

Pneumonia is the fourth-leading cause of death globally, and Streptococcus pneumoniae is the most important causative pathogen. Because the incidence of pneumococcal diseases is likely to increase with the aging society, we should determine an optimal strategy for pneumococcal vaccination. While consensus indicates that 23-valent pneumococcal polysaccharide vaccine prevents invasive pneumococca...

BACKGROUND Polysaccharide pneumococcal vaccine is recommended for use in HIV-infected adults in Brazil but there is uncertainty about its effectiveness in this patient population. The main objective of this study was to assess the effectiveness of the 23-valent polysaccharide pneumococcal vaccine against invasive pneumococcal infection among HIV-infected adult patients in São Paulo, Brazil. M...

Pneumococcal pneumonia is a significant health concern for pediatric, healthy adult, and elderly populations. The newly licensed pneumococcal 7-valent conjugate (diphtheria CRM197 protein) vaccine, Prevnar, and a second generation experimental 9-valent product have demonstrated, for the first time, a clear and significant impact on pneumococcal pneumonia in children. The potential for saccharid...

Three years after a 7-valent pneumococcal conjugate vaccine was replaced by a 10-valent pneumococcal conjugate vaccine in the Netherlands, we observed a decrease in incidence of invasive pneumococcal disease caused by Streptococcus pneumoniae serotypes 1, 5, and 7F. Our data do not support or exclude cross-protection against serotype 19A.

During an etiology study of adults hospitalized for pneumonia, in which urine specimens were examined for serotype-specific pneumococcal antigen detection, we observed that some patients received 23-valent pneumococcal polysaccharide vaccine before urine collection. Some urine samples became positive for specific vaccine pneumococcal serotypes shortly after vaccination, suggesting false-positiv...

There is still a lack of effective vaccination strategies for patients with a deficient antibody response to bacterial polysaccharide antigens. In an open trial, we evaluated the immunogenicity and tolerance of a new 7-valent pneumococcal conjugate vaccine in 22 infection-prone nonresponders to pneumococcal polysaccharide vaccine and 21 controls. In the patient group, nonresponsiveness was conf...