Antibody Response to Pneumococcal Polysaccharide Vaccination Predicts Pneumococcal Disease in Splenectomized Patients with Hematological Diseases.

Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 1335-1335
Author(s):  
Honar Cherif ◽  
Magnus Bjorkholm ◽  
Mats Kalin ◽  
Helle B. Konradsen ◽  
Ola Landgren
Keyword(s):  
Antibody Response ◽  
Pneumococcal Disease ◽  
Pneumococcal Vaccination ◽  
Immunological Response ◽  
Poor Responders ◽  
Pneumococcal Infections ◽  
Hematological Diseases ◽  
Prophylactic Measures ◽  
Increased Risk ◽  
Antibody Titers

Abstract Patients with hematological diseases undergoing diagnostic or therapeutic splenectomy are at increased risk of acquiring fulminant pneumococcal infections. Vaccination is a straightforward option in reducing these infections. Certain patient subgroups showing inadequate immunological response to pneumococcal vaccination may be candidates for alternative prophylactic measures. We prospectively studied the antibody response to vaccination with 23-valent pneumococcal capsular polysaccharide vaccine (Pneumovax N) in splenectomized patients with hematological disorders in relation to clinical characteristics and pneumococcal disease. A total of 76 splenectomized patients (Hodgkin s lymphoma 26, indolent lymphoma 10, aggressive lymphoma 8, immune hemolytic anemia 6, immune thrombocytopenic purpura 22, and others 4) with a median age of 52 years (range 18–82) were included. Antibody titers were determined using an enzyme-linked immunosorbent assay before and 12 months after vaccination. A weak immunological response was observed in 27 (35%) patients (poor responders) and an adequate response in 49 (65%) (good responders). During the follow-up period of 5–9 years after vaccination and despite repeated revaccination in many cases, a total of 5 episodes of microbiologically verified pneumococcal infections were reported in poor responders, while only one episode was noted among good responders (p=.01). Underlying malignant hematological diseases were more frequent among poor responders than among good responders (p=.002). The distribution of patients according to age, gender, immunoglobulin levels, time between splenectomy and vaccination (<1 year>), time between preceding chemotherapy/radiotherapy and vaccination (<6 months>) and/or previous radiotherapy did not differ between poor and good responders. In conclusion, a significant number of splenectomized patients with hematological diseases respond poorly to pneumococcal vaccination and have a significantly increased risk of post-splenectomy pneumococcal infections despite vaccination. In the absence of clinical parameters that can reliably predict a poor antibody response, measurement of antibody titers 12 months after vaccination seems to be the most adequate method for identification of patients in this subgroup. Poor responders may be offered other prophylactic measures such as antibiotic prophylaxis and/or immunization with pneumococcal conjugate vaccines. Studies to further elucidate the last alternative are ongoing.

scholarly journals Coeliac disease and invasive pneumococcal disease: a population-based cohort study

2017 ◽  
Vol 145 (6) ◽  
pp. 1203-1209 ◽  
Author(s):  
A. RÖCKERT TJERNBERG ◽  
J. BONNEDAHL ◽  
M. INGHAMMAR ◽  
A. EGESTEN ◽  
G. KAHLMETER ◽  
...  
Keyword(s):  
Cohort Study ◽  
Coeliac Disease ◽  
Invasive Pneumococcal Disease ◽  
Pneumococcal Disease ◽  
Cox Regression ◽  
Statistical Significance ◽  
Pneumococcal Vaccination ◽  
Population Based ◽  
Increased Risk ◽  
Severe Infections

SUMMARYSevere infections are recognized complications of coeliac disease (CD). In the present study we aimed to examine whether individuals with CD are at increased risk of invasive pneumococcal disease (IPD). To do so, we performed a population-based cohort study including 29 012 individuals with biopsy-proven CD identified through biopsy reports from all pathology departments in Sweden. Each individual with CD was matched with up to five controls (n = 144 257). IPD events were identified through regional and national microbiological databases, including the National Surveillance System for Infectious Diseases. We used Cox regression analyses to estimate hazard ratios (HRs) for diagnosed IPD. A total of 207 individuals had a record of IPD whereas 45/29 012 had CD (0·15%) and 162/144 257 were controls (0·11%). This corresponded to a 46% increased risk for IPD [HR 1·46, 95% confidence interval (CI) 1·05–2·03]. The risk estimate was similar after adjustment for socioeconomic status, educational level and comorbidities, but then failed to attain statistical significance (adjusted HR 1·40, 95% CI 0·99–1·97). Nonetheless, our study shows a trend towards an increased risk for IPD in CD patients. The findings support results seen in earlier research and taking that into consideration individuals with CD may be considered for pneumococcal vaccination.

Effectiveness of Conjugate and Polysaccharide Pneumococcal Vaccines for Prevention of Severe Pneumococcal Disease Among Inflammatory Bowel Disease Patients

2021 ◽  
Author(s):  
Bryan L Love ◽  
Christopher J Finney ◽  
Jill K J Gaidos
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Pneumococcal Disease ◽  
Pneumococcal Vaccination ◽  
Cox Proportional Hazards Model ◽  
Health Administration ◽  
Immunosuppressive Medications ◽  
Increased Risk ◽  
Inflammatory Bowel ◽  
The Impact

Abstract Background Streptococcus pneumoniae is an important pathogen responsible for severe pneumococcal diseases, including pneumonia, bacteremia/sepsis, and meningitis. Inflammatory bowel disease (IBD) patients have an increased risk for infections due to an altered immune system and treatment with immunosuppressive medications. The aim of this study was to assess the prevalence of severe pneumococcal disease (SPD) and evaluate the impact of pneumococcal vaccination on the risk of SPD in Veterans with IBD. Methods Subjects with IBD and SPD were identified from the VA Health Administration database using ICD9/10 codes. Pneumococcal vaccination and use of immunosuppressant medications were collected. Risk of SPD was evaluated using an adjusted Cox proportional hazards model controlling for demographics, medications, vaccination, and comorbidities. Results A total of 1798 cases of SPD were identified (283 pneumonia, 1,513 bacteremia, and 2 meningitis). SPD patients were older (60.9 years vs 59.4 years; p<0.001), had more comorbidities (Charlson Comorbidity Index of 2.11 vs. 0.96; p<0.001) and had increased mortality (4.6% vs. 1.5%, p<0.001). The risk of SPD was increased in Crohn’s disease (HR 1.15; 95% CI 1.05-1.27) and with more comorbidities (HR 1.45; 95% CI 1.42-1.48). Use of immunosuppressive medications increased the risk of SPD. Receipt of PCV13 either alone or in combination with PPSV23 predicted a five-fold decreased risk of SPD compared with no vaccination. Conclusion Vaccination with PCV13 alone or in combination with PPSV23 and revaccination with PPSV23, was protective against SPD. All IBD patients should be evaluated for pneumococcal vaccination, particularly those receiving or expected to receive immunosuppressive therapies.

scholarly journals Pneumococcal Conjugate Vaccines Overcome Splenic Dependency of Antibody Response to Pneumococcal Polysaccharides

2001 ◽  
Vol 69 (12) ◽  
pp. 7583-7587 ◽  
Author(s):  
Mijke A. Breukels ◽  
Andre Zandvoort ◽  
Germie P. J. M. van den Dobbelsteen ◽  
Adrie van den Muijsenberg ◽  
Monique E. Lodewijk ◽  
...  
Keyword(s):  
Antibody Response ◽  
Conjugate Vaccine ◽  
Primary Response ◽  
Antibody Responses ◽  
Capsular Polysaccharides ◽  
Pneumococcal Infections ◽  
Conjugate Vaccines ◽  
Pneumococcal Conjugate Vaccines ◽  
Increased Risk ◽  
Pneumococcal Polysaccharides

ABSTRACT Protection against infections with Streptococcus pneumoniae depends on the presence of antibodies against capsular polysaccharides that facilitate phagocytosis. Asplenic patients are at increased risk for pneumococcal infections, since both phagocytosis and the initiation of the antibody response to polysaccharides take place in the spleen. Therefore, vaccination with pneumococcal polysaccharide vaccines is recommended prior to splenectomy, which, as in the case of trauma, is not always feasible. We show that in rats, vaccination with a pneumococcal conjugate vaccine can induce good antibody responses even after splenectomy, particularly after a second dose. The spleen remains necessary for a fast, primary response to (blood-borne) polysaccharides, even when they are presented in a conjugated form. Coadministration of a conjugate vaccine with additional nonconjugated polysaccharides of other serotypes did not improve the response to the nonconjugated polysaccharides. We conclude that pneumococcal conjugate vaccines can be of value in protecting asplenic or hyposplenic patients against pneumococcal infections.

scholarly journals Celiac disease and complement activation in response to Streptococcus pneumoniae

2019 ◽  
Vol 179 (1) ◽  
pp. 133-140
Author(s):  
Anna Röckert Tjernberg ◽  
Hanna Woksepp ◽  
Kerstin Sandholm ◽  
Marcus Johansson ◽  
Charlotte Dahle ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Streptococcus Pneumoniae ◽  
Invasive Pneumococcal Disease ◽  
Complement Activation ◽  
Pneumococcal Disease ◽  
Excess Risk ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Pneumococcal Infections ◽  
Increased Risk

Abstract Individuals with celiac disease (CD) are at increased risk of invasive pneumococcal disease (IPD). The aim of this study was to explore whether the complement response to Streptococcus pneumoniae differed according to CD status, and could serve as an explanation for the excess risk of IPD in CD. Twenty-two children with CD and 18 controls, born 1999–2008, were included at Kalmar County Hospital, Sweden. The degree of complement activation was evaluated by comparing levels of activation products C3a and sC5b-9 in plasma incubated for 30 min with Streptococcus pneumoniae and in non-incubated plasma. Complement analyses were performed with enzyme-linked immunosorbent assay (ELISA). Pneumococcal stimulation caused a statistically significant increase in C3a as well as sC5b-9 in both children with CD and controls but there was no difference in response between the groups. After incubation, C3a increased on average 4.6 times and sC5b-9 22 times in both the CD and the control group (p = 0.497 and p = 0.724 respectively). Conclusion: Complement response to Streptococcus pneumoniae seems to be similar in children with and without CD and is thus unlikely to contribute to the increased susceptibility to invasive pneumococcal disease in CD.What is Known:• An excess risk of pneumococcal infections has been demonstrated in individuals with celiac disease.• Infectious complications can depend on hyposplenism but alternative mechanisms are sparsely examined.What is New:• Complement activation in response to Streptococcus pneumoniae was examined in children with and without celiac disease but no differences could be demonstrated.

scholarly journals 2205. Clinical Burden of Pneumococcal Disease in US Adults Aged 65 Years and Above with Chronic or Immunocompromising Conditions

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S752-S752
Author(s):  
Arijita Deb ◽  
Kelly D Johnson ◽  
Wanmei Ou
Keyword(s):  
At Risk ◽  
High Risk ◽  
Pneumococcal Disease ◽  
Medical Condition ◽  
Pneumococcal Vaccination ◽  
The United States ◽  
Healthy Adults ◽  
Medical Conditions ◽  
Increased Risk ◽  
One Year

Abstract Background The presence of chronic and immunocompromising conditions is associated with a disproportionately high risk of developing pneumococcal disease at older ages. The objective of this study was to quantify the risk of all-cause pneumonia (ACP) and invasive pneumococcal disease (IPD) in older US adults aged 65 years and older with underlying medical conditions. Methods A retrospective observational study was conducted using the Humana claims database. The study cohorts were identified at January 1 of each calendar year of observation from 2012 to 2017 and comprised adults aged 65 years and older with continuous enrollment for at least one year before and at least one year after January 1 of each year. For each yearly cohort, medical conditions were identified during the one year before each calendar year and episodes of ACP and IPD were identified during the corresponding 1-year follow-up period from January 1 to December 31. Individuals were stratified into 3 groups: those without any medical conditions of interests (healthy), those with chronic conditions (at-risk) and those with immunocompromising conditions (high-risk). Rate of ACP or IPD was expressed as the number of cases per 100,000 person-years and the rate ratio (RR) was expressed as the rate of pneumococcal disease of patients with medical conditions divided by the rate of pneumococcal disease in healthy adults. Results Of the 10,766,827 adults included in the study, 75% of adults had an underlying medical condition linked to an increased risk of pneumococcal disease. In adults with at-risk conditions, rates of ACP and IPD were 3.1 and 3.6 times the rate in healthy adults, respectively. In adults with high-risk conditions, rates of ACP and IPD were 4.1 and 5 times the rate in healthy adults, respectively. Rate of pneumococcal disease increased substantially with the addition of medical conditions: RR for ACP and IPD increased from 2.1 and 2.2, respectively, in adults with one at-risk conditions to 4.8 and 6.2, respectively, among adults with 2 or more at-risk conditions. Conclusion Despite recommendations of universal pneumococcal vaccination in older adults aged 65 years and above in the United States, the burden of pneumococcal disease remains high, particularly among those with chronic and immunocompromising conditions. Disclosures All authors: No reported disclosures.

scholarly journals COVID-BioB Cohort Study: the neutralizing antibody response to SARS-CoV-2 in symptomatic COVID-19 is persistent and critical for virus control and survival

2021 ◽  
Author(s):  
Stefania Dispinseri ◽  
Massimiliano Secchi ◽  
Maria Franca Pirillo ◽  
Monica Tolazzi ◽  
Martina Borghi ◽  
...  
Keyword(s):  
Antibody Response ◽  
Symptom Onset ◽  
Neutralizing Antibodies ◽  
Neutralizing Antibody ◽  
Therapeutic Interventions ◽  
Critical Conditions ◽  
Specific Response ◽  
Increased Risk ◽  
Antibody Titers ◽  
Flu Virus

ABSTRACTUnderstanding how antibody to SARS-CoV-2 evolve during infection may provide important insight into therapeutic approaches to prevent fatal COVID-19 illness and vaccines. Here, we profile the antibody response of 162 well-characterized COVID-19 symptomatic patients followed longitudinally for up to eight months from symptom onset. Using two newly developed assays we detect SARS-CoV-2 neutralization and antibodies binding to Spike antigens and nucleoprotein as well as to Spike S2 antigen of seasonal beta-coronaviruses, and to hemagglutinin of the H1N1 flu virus. Presence of neutralizing antibodies withing the first weeks from symptom onset correlates with time to a negative swab result (p=0.002) while lack of neutralization with an increased risk of a fatal disease outcome (HR 2.918, 95%CI 1.321-6.449; p=0.008). Neutralizing antibody titers progressively drop after 5-8 weeks but are still detectable up to 8 months in the majority of recovered patients regardless of age or co-morbidities. IgG to Spike antigens are the best correlate of neutralization. Antibody responses to seasonal coronaviruses are temporary boosted and parallel those to SARS-CoV-2 without dampening the specific response or worsening disease progression. Thus, a compromised immune response to the Spike rather than an enhanced one is a major trait of patients with critical conditions. Patients should be promptly identified and immediately start therapeutic interventions aimed at restoring their immunity.

scholarly journals Differences and Temporal Changes in Risk of Invasive Pneumococcal Disease in Adults with Hematological Malignancies: Results from a Nationwide 16-Year Cohort Study

2020 ◽  
Author(s):  
Michael Asger Andersen ◽  
Carsten Utoft Niemann ◽  
Klaus Rostgaard ◽  
Tine Dalby ◽  
Rasmus Sørrig ◽  
...  
Keyword(s):  
Invasive Pneumococcal Disease ◽  
Pneumococcal Disease ◽  
Hematological Malignancies ◽  
Lymphoblastic Leukemia ◽  
Pneumococcal Vaccination ◽  
Temporal Variations ◽  
Lymphocytic Leukemia ◽  
Vaccination Uptake ◽  
Background Population ◽  
Increased Risk

Abstract Background Patients with hematological malignancies (HM) are known to carry an increased risk of invasive pneumococcal disease (IPD). However, temporal variations in IPD risks following a cancer diagnosis remain poorly characterized. To inform vaccine guidelines and patient management, we assessed the IPD incidence among patients with HM and other malignancies. Methods The study population included all individuals aged ≥15 years during 2000–2016 in Denmark. Variations in incidences of IPD over time and between different types of hematological malignancies and diagnoses were assessed by Poisson regression. Results During 85 002 224 person-years of observation, 13 332 episodes of a first IPD were observed, of which 765 (5.7%) occurred among individuals with HM. Among HM patients, the IPD incidence rate decreased continuously during the study period (rate ratio per year, 0.91; 95% confidence interval, .90–.92). The risk of IPD in patients with HM was up to 39 times higher when compared to the background population and was highest for multiple myeloma, acute lymphoblastic leukemia, and chronic lymphocytic leukemia. Unlike other malignancies, the increased IPD risk did not wane with the time since HM diagnosis. We found a vaccination uptake of only ≤2% in patients with HM and ≤1% for those with other types of malignancies. Conclusions Adults with HM in general and patients with lymphoid malignancies in particular have an increased risk for IPD, compared with patients with other types of cancer and with individuals free of cancer. The pneumococcal vaccination uptake is extremely low in this at risk-population. Efforts to prevent IPD in HM patients are continuously warranted.

scholarly journals The epidemiology of pneumococcal infection in children in the developing world

1999 ◽  
Vol 354 (1384) ◽  
pp. 777-785 ◽  
Author(s):  
Brian Greenwood
Keyword(s):  
Young Children ◽  
Invasive Pneumococcal Disease ◽  
Pneumococcal Disease ◽  
Developing World ◽  
Pneumococcal Infection ◽  
Field Trials ◽  
Industrialized Countries ◽  
Pneumococcal Infections ◽  
Increased Risk ◽  
Meningitis In Children

Pneumonia causes about three million deaths a year in young children, nearly all of which are in developing countries. Streptococcus pneumoniae (the pneumococcus) is the most important bacterial cause of pneumonia in young children and so is likely to be responsible for a high proportion of these deaths. The pneumococcus is also responsible for a substantial proportion of the 100 000–500 000 deaths that occur from meningitis in children each year. The incidence of invasive pneumococcal disease in children in the developing world is several times higher than in industrialized countries. This discrepancy may, in part, be due to socio–economic differences but genetic factors may also play a role. Children with sickle cell disease have a substantially increased risk of invasive pneumococcal infection and a search is being made for other possible genetic risk factors. Infection with human immunodeficiency virus (HIV) also predisposes to invasive pneumococcal disease and so the incidence of this disease in young children is expected to rise as increasing numbers of African and Asian children are born with a perinatally acquired HIV infection. Until recently, pneumococcal infections could be treated effectively with penicillin, a cheap and safe antibiotic. However, pneumococci that are resistant to penicillin are becoming prevalent in many countries, necessitating a change to more costly antibiotics which may be beyond the reach of the health services of poor, developing counties. The spread of antibiotic resistance has provided an added stimulus to the development of vaccines that might be able to prevent pneumococcal disease in infants. Recently developed polysaccharide–protein conjugate vaccines show promise and are now undergoing field trials. How deployment of these vaccines will influence the balance between invasive pneumococcal infections and asymptomatic nasopharyngeal carriage of pneumococci is uncertain.

scholarly journals An observational study on pneumococcal and influenza vaccination status of patients with type 2 diabetes mellitus

2018 ◽  
Vol 6 (12) ◽  
pp. 3842
Author(s):  
Rafiq A. Bhat ◽  
Saleem A. Wani ◽  
Rajat Kharbanda ◽  
Sumit Sethi
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Pneumococcal Disease ◽  
Pneumococcal Vaccination ◽  
Vaccination Rates ◽  
Vaccination Uptake ◽  
Increased Risk ◽  
Patients With Diabetes

Background: India has more than sixty million subjects with diabetes. Diabetes confers an increased risk of developing and dying from infectious diseases with an enhanced susceptibility to morbidity, mortality and hospitalizations due to influenza and pneumococcal disease. The Advisory Committee on Immunization Practices (ACIP) recommends influenza and pneumococcal vaccines for all individuals with diabetes.Methods: Around 249 patients with type 2 diabetes mellitus were enrolled in the study. All patients were asked a detailed history about diabetes, its duration, type of diabetes and the vaccinations for influenza and pneumococcus, who suggested vaccination and the reasons for declining the vaccination if it had been medically advised. Any other co-morbid condition such as hypertension, diabetes mellitus, heart disease, COPD, hypothyroidism and CKD were noted.Results: Vaccination rates for influenza in patients aged 50 or more were higher (7.6% of 172 patients) as compared to those aged <50 years (0% of 77); (p=0.013) whereas pneumococcal vaccination rates were 8.1% as against 1.3% (p=0.036) respectively. In males the vaccination rates for influenza were 4.7% compared to females (5.8%); (p=0.675), whereas for pneumococcus the respective vaccination rates were 6.2% for male and 5.8% for female (p=0.903). Vaccination uptake among male and female were almost same. Patients having chronic kidney disease on dialysis were having highest vaccination rate.Conclusions: The poor vaccination uptake for influenza and pneumococcus in patients with diabetes, calls for intensive efforts aimed at increasing coverage.

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