Comparison of the effect of antibiotic treatment on the possibility of diagnosing invasive pneumococcal disease by culture or molecular methods: A prospective, observational study of children and adolescents with proven pneumococcal infection

2009 ◽  
Vol 31 (6) ◽  
pp. 1266-1273 ◽  
Author(s):  
Massimo Resti ◽  
Annalisa Micheli ◽  
Maria Moriondo ◽  
Laura Becciolini ◽  
Martina Cortimiglia ◽  
...  
Keyword(s):  
Observational Study ◽  
Children And Adolescents ◽  
Antibiotic Treatment ◽  
Invasive Pneumococcal Disease ◽  
Pneumococcal Disease ◽  
Prospective Observational Study ◽  
Pneumococcal Infection ◽  
Molecular Methods

Epidemiological, Clinical, and Microbiological Characteristics of Serotype-3 Streptoccocus pneumoniae Infection after a Partial Introduction of the 13-Valent Pneumococcal Conjugate Vaccine: A Prospective Observational Study

2020 ◽  
Vol 15 (04) ◽  
pp. 169-175
Author(s):  
Anna Solé-Ribalta ◽  
Maria F. de Sevilla ◽  
Fernando Moraga-Llop ◽  
Alvaro D. Conradi ◽  
Sergi Hernández ◽  
...  
Keyword(s):  
Observational Study ◽  
Real Time ◽  
Conjugate Vaccine ◽  
Invasive Pneumococcal Disease ◽  
Pneumococcal Conjugate Vaccine ◽  
Pneumococcal Disease ◽  
Prospective Observational Study ◽  
Diagnostic Yield ◽  
Positive Real ◽  
Microbiological Characteristics

Abstract Objective After the introduction of 13-valent pneumococcal conjugate vaccine (PCV13), a decrease of serotype-3 invasive pneumococcal disease (IPD) has not been homogenously observed around Europe. The aim of the study is to analyze the incidence of serotype-3 IPD in our area (Catalonia, Spain) and describe what microbiological and clinical characteristics distinguish serotype-3 IPD from nonserotype-3 IPD. Methods This study is a prospective observational study performed in three hospitals of Barcelona (Spain), from January 2012 to June 2016. Patients younger than 18 years with a diagnosis of IPD were included. Epidemiological, clinical, and microbiological data were collected. Results A total of 253 cases of IPD were included; of these, 53 were caused by serotype 3. The incidence rate of serotype-3 IPD remained stable over the study years (risk ratio [RR] = 0.64; 95% confidence interval [CI]: 0.3–1.38). In 92.5% (49/53) of the cases of serotype-3 IPD, the diagnosis was pneumonia and 89.8% (44/49) of them reported a complicated pneumonia. Also, 98.1% (52/53) were detected by positive real-time polymerase chain reaction (PCR) in blood or pleural effusion. Seventeen patients were properly vaccinated with PCV13 before the infection. Conclusion After the introduction of PCV13 a global decline of invasive pneumococcal disease has been reported, specially, due to a decrease of serotypes 1 and 19A cases. Serotype-3 Streptococcus pneumoniae IPD remained stable throughout the years of study, being currently the main serotype causing IPD in our area. Serotype 3 causes mostly pneumonia and physicians must be aware of possible complications. Real-time PCR have a significantly higher diagnostic yield for serotype 3 compared with culture. Some vaccination failures were observed.

scholarly journals Pediatric Invasive Pneumococcal Disease Three Years after PCV13 Introduction in the National Immunization Plan—The Continued Importance of Serotype 3

2021 ◽  
Vol 9 (7) ◽  
pp. 1428
Author(s):  
Catarina Silva-Costa ◽  
Joana Gomes-Silva ◽  
Lúcia Prados ◽  
Mário Ramirez ◽  
José Melo-Cristino ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Antimicrobial Resistance ◽  
Conjugate Vaccine ◽  
Invasive Pneumococcal Disease ◽  
Pneumococcal Disease ◽  
Molecular Methods ◽  
Vaccine Uptake ◽  
Serotype Distribution ◽  
Conjugate Vaccines ◽  
National Immunization

The introduction of pneumococcal conjugate vaccines PCV7 and PCV13 led to decreases in incidence of pediatric invasive pneumococcal disease (pIPD) and changes in serotype distribution. We evaluated the consequences of higher vaccine uptake after the introduction of PCV13 in the National Immunization Plan (NIP) in 2015. Besides culture and conventional serotyping, the use of molecular methods to detect and serotype pneumococci in both pleural and cerebrospinal fluid samples contributed to 30% of all pIPD (n = 232) in 2015–2018. The most frequently detected serotypes were: 3 (n = 59, 26%), 10A (n = 17, 8%), 8 (n = 16, 7%) and 19A (n = 10, 4%). PCV13 serotypes still accounted for 46% of pIPD cases. Serotypes not included in any currently available conjugate vaccine (NVT) are becoming important causes of pIPD, with the increases in serotypes 8 and 33F being of particular concern given the importance of serotype 8 in adult IPD and the antimicrobial resistance of serotype 33F isolates. This study highlights the importance of using molecular methods in pIPD surveillance since these allowed a better case ascertainment and the identification of serotype 3 as the leading cause of pIPD. Even in a situation of vaccine uptake >95% for 3 years, PCV13 serotypes remain important causes of pIPD.

Invasive pneumococcal disease in HIV seropositive children and adolescents

2008 ◽  
Vol 84 (3) ◽  
pp. 276-280
Author(s):  
Sonia M. Mattei ◽  
Luiza Helena Falleiros-Carvalho ◽  
Nilton J. F. Cavalcante
Keyword(s):  
Children And Adolescents ◽  
Invasive Pneumococcal Disease ◽  
Pneumococcal Disease ◽  
Hiv Seropositive

scholarly journals Clinical Profile of Invasive Pneumococcal Disease in Patan Hospital, Nepal

2012 ◽  
Vol 9 (1) ◽  
pp. 45-49 ◽  
Author(s):  
U D Chhetri ◽  
S Shrestha ◽  
R Pradhan ◽  
A Shrestha ◽  
N Adhikari ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Invasive Pneumococcal Disease ◽  
Pneumococcal Disease ◽  
Pneumococcal Infection ◽  
Clinical Profile ◽  
Female Ratio ◽  
Sensitivity Pattern ◽  
Case Files ◽  
Antibiotics Sensitivity ◽  
Almost All

Background Pneumococcal infection is one of the leading causes of pneumonia, meningitis and septicemia in developing countries. It accounts for one million deaths each year in children. Objectives The objective of this study is to see the clinical profile of invasive pneumococcal disease, antibiotics sensitivity pattern and prevalent serotypes in children admitted at Patan Hospital. Methods This is a retrospective analytical study conducted in the department of Paediatrics, Patan hospital. The lab data of those children who grew pneumococci in their blood, cerebrospinal fluid or body fluids over a period of 3 years (January 2007 to Dec 2009) were collected and the case files were then studied. Results Out of 42 cases of invasive pneumococcal diseases studied admitted diagnoses included pneumonia, febrile seizure, bacteremia or septicemia, meningitis, acute gastroenteritis and glomerulonephritis. Twenty seven of them were children under five. The male to female ratio was 1.7:1. On investigation 64%, 52% and 5% of the patients had leucocytosis, anaemia, and leucopenia respectively. Twenty six of them had radiological changes suggestive of pneumonia. Streptococcus pneumoniae grew in 38 blood samples, 5 cerebrospinal fluid and 3 pleural fluids. Almost all of these isolates were sensitive to penicillin, cefotaxime, amoxycillin, choloramphenicol, erythromycin and ofloxacin and resistant to cotrimoxazole and gentamicin.Pneumococcal serotypes found in our study were 1, 14, 5, 23B, 6B, 8, 9A, 9V, 10A, 15 and 23F (11 serotypes). ConclusionsPenicillin is still the most effective antibiotic for streptococcal infection in our study. Of the pneumococcal serotypes identified; 36% were covered by the 7-valent pneumococcal conjugate vaccine, 54% each by PCV-10 and PCV-13, and 72% by the e 23 valent vaccines.http://dx.doi.org/10.3126/kumj.v9i1.6262 Kathmandu Univ Med J 2011;9(1):45-9

scholarly journals Cigarette Smoke Attenuates the Nasal Host Response to Streptococcus pneumoniae and Predisposes to Invasive Pneumococcal Disease in Mice

2016 ◽  
Vol 84 (5) ◽  
pp. 1536-1547 ◽  
Author(s):  
Pamela Shen ◽  
Mathieu C. Morissette ◽  
Gilles Vanderstocken ◽  
Yang Gao ◽  
Muhammad Hassan ◽  
...  
Keyword(s):  
Streptococcus Pneumoniae ◽  
Cigarette Smoke ◽  
Invasive Pneumococcal Disease ◽  
Bacterial Infections ◽  
Pneumococcal Disease ◽  
Pneumococcal Infection ◽  
Cigarette Smoke Exposure ◽  
Upper Respiratory Tract ◽  
Content Type ◽  
Pneumococcal Colonization

Streptococcus pneumoniaeis a leading cause of invasive bacterial infections, with nasal colonization an important first step in disease. While cigarette smoking is a strong risk factor for invasive pneumococcal disease, the underlying mechanisms remain unknown. This is partly due to a lack of clinically relevant animal models investigating nasal pneumococcal colonization in the context of cigarette smoke exposure. We present a model of nasal pneumococcal colonization in cigarette smoke-exposed mice and document, for the first time, that cigarette smoke predisposes to invasive pneumococcal infection and mortality in an animal model. Cigarette smoke increased the risk of bacteremia and meningitis without prior lung infection. Mechanistically, deficiency in interleukin 1α (IL-1α) or platelet-activating factor receptor (PAFR), an important host receptor thought to bind and facilitate pneumococcal invasiveness, did not rescue cigarette smoke-exposed mice from invasive pneumococcal disease. Importantly, we observed cigarette smoke to attenuate nasal inflammatory mediator expression, particularly that of neutrophil-recruiting chemokines, normally elicited by pneumococcal colonization. Smoking cessation during nasal pneumococcal colonization rescued nasal neutrophil recruitment and prevented invasive disease in mice. We propose that cigarette smoke predisposes to invasive pneumococcal disease by suppressing inflammatory processes of the upper respiratory tract. Given that smoking prevalence remains high worldwide, these findings are relevant to the continued efforts to reduce the invasive pneumococcal disease burden.

scholarly journals Invasive pneumococcal infection in South and West England

1998 ◽  
Vol 120 (2) ◽  
pp. 117-123 ◽  
Author(s):  
M. D. SMITH ◽  
J. STUART ◽  
N. J. ANDREWS ◽  
W. A. TELFER BRUNTON ◽  
K. A. V. CARTWRIGHT
Keyword(s):  
Blood Culture ◽  
Invasive Pneumococcal Disease ◽  
Pneumococcal Disease ◽  
Statistical Significance ◽  
Pneumococcal Infection ◽  
Vaccine Uptake ◽  
Pneumococcal Infections ◽  
Sex Structure ◽  
Catchment Population ◽  
Admission Rates

Variation in the incidence of invasive pneumococcal disease across South and West England, in 1995, was measured through a survey of microbiology laboratories. A 100% response rate was achieved. The incidence by laboratory varied between 5·2 and 20·4 per 100000 catchment population (P<0·001). Adjusting for pneumococcal vaccine uptake rate in over 65 year olds, hospital admission rates, blood culture system used and for the age and sex structure of the population, did not account for this variation. When blood culture sampling rates were included in a logistic regression model, the variation between laboratories was much less and of lower statistical significance (P=0·019). Higher rates of blood culture sampling were associated with a higher incidence of invasive pneumococcal disease. Consistently high sampling should be encouraged because a higher diagnostic rate should result in more selective prescribing of antibiotics, and secondly because improved ascertainment of severe pneumococcal infections is a prerequisite for the evaluation of new pneumococcal conjugate vaccines.

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