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  1. Article ; Online: Epidemiology of community-acquired pneumonia caused by S treptococcus pneumoniae in older adults: a narrative review.

    Elias, Christelle / Nunes, Marta C / Saadatian-Elahi, Mitra

    Current opinion in infectious diseases

    2024  Volume 37, Issue 2, Page(s) 144–153

    Abstract: Purpose of review: This review covers updated perspectives on different aspects of pneumococcal community-acquired pneumonia (pCAP), including the epidemiology, clinical presentation, risk factors, antibiotic treatment, and existing preventive ... ...

    Abstract Purpose of review: This review covers updated perspectives on different aspects of pneumococcal community-acquired pneumonia (pCAP), including the epidemiology, clinical presentation, risk factors, antibiotic treatment, and existing preventive strategies in older adults.
    Recent findings: pCAP remains the most prevalent condition among lower respiratory tract infections in the older adults according to Global Burden of Diseases 2019. Older adults can display atypical symptoms such as confusion, general clinical deterioration, new onset of and exacerbation of underlying illness that might trigger clinical suspicion of pCAP. Older adults with pCAP often experience increased disease severity and a higher risk of pulmonary complications compared with younger individuals, owing to age-related changes in immunity and a higher prevalence of comorbidities. Vaccination stands fundamental for prevention, emphasizing the need for effective immunization strategies, specifically tailored for older adults. There is a pressing need to reinforce efforts aimed at boosting pneumococcal vaccination rates.
    Summary: Despite a high morbidity and mortality, the burden of pCAP, in particular hospital admission and occurrence of invasive infections, among the elderly population is not sufficiently documented. This review findings emphasize the substantial burden of pCAP in this vulnerable population, driven by factors such as advancing age and underlying comorbidities. The emergence of antibiotic-resistant pneumococcal strains further complicates treatment decisions and highlights the importance of tailored approaches for managing pCAP in older adults.
    MeSH term(s) Humans ; Aged ; Pneumonia, Pneumococcal/epidemiology ; Pneumonia, Pneumococcal/prevention & control ; Streptococcus pneumoniae ; Respiratory Tract Infections/epidemiology ; Hospitalization ; Comorbidity ; Community-Acquired Infections/epidemiology ; Community-Acquired Infections/prevention & control ; Pneumococcal Vaccines ; Pneumococcal Infections/epidemiology ; Pneumococcal Infections/prevention & control
    Chemical Substances Pneumococcal Vaccines
    Language English
    Publishing date 2024-02-05
    Publishing country United States
    Document type Review ; Journal Article
    ZDB-ID 645085-4
    ISSN 1473-6527 ; 1535-3877 ; 0951-7375 ; 1355-834X
    ISSN (online) 1473-6527 ; 1535-3877
    ISSN 0951-7375 ; 1355-834X
    DOI 10.1097/QCO.0000000000001005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Venerable but Vulnerable: When Centenarians Encounter Coronavirus Disease 2019.

    Dessemon, Juliette / Elias, Christelle / Henaff, Laetitia / Saadatian-Elahi, Mitra / Vanhems, Philippe

    Open forum infectious diseases

    2022  Volume 9, Issue 1, Page(s) ofab580

    Language English
    Publishing date 2022-01-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2757767-3
    ISSN 2328-8957
    ISSN 2328-8957
    DOI 10.1093/ofid/ofab580
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Epidemiology and serotype distribution of

    Sanchez Picot, Valentina / Keovichith, Inthalaphone / Paboriboune, Phimpha / Flaissier, Bruno / Saadatian-Elahi, Mitra / Rudge, James W

    Frontiers in public health

    2023  Volume 11, Page(s) 1124016

    Abstract: Background: Data on the epidemiology of : Methods: Active ILI surveillance was conducted through weekly phone calls in an open community-based cohort study (April 2015-February 2019), involving 5,690 participants from 1,142 randomly selected ... ...

    Abstract Background: Data on the epidemiology of
    Methods: Active ILI surveillance was conducted through weekly phone calls in an open community-based cohort study (April 2015-February 2019), involving 5,690 participants from 1,142 randomly selected households. Participants reporting ILI symptoms provided a nasopharyngeal swab and answered a questionnaire.
    Results: Among 1,621 ILI episodes, 269 (16.6%) tested positive for nasopharyngeal pneumococcal carriage, with the highest prevalence (55.4%) in children under 5 years. Pneumococcal carriage was significantly associated with concurrent detection of
    Conclusions: Community-based surveillance of
    MeSH term(s) Infant ; Child ; Humans ; Child, Preschool ; Aged ; Streptococcus pneumoniae ; Serogroup ; Cohort Studies ; Pneumococcal Infections/epidemiology ; Pneumococcal Infections/prevention & control ; Influenza, Human ; Laos/epidemiology ; Carrier State/epidemiology ; Vaccines, Conjugate/pharmacology
    Chemical Substances Vaccines, Conjugate
    Language English
    Publishing date 2023-04-20
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2711781-9
    ISSN 2296-2565 ; 2296-2565
    ISSN (online) 2296-2565
    ISSN 2296-2565
    DOI 10.3389/fpubh.2023.1124016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Patient influenza vaccination reduces the risk of hospital-acquired influenza: an incident test negative-case control study in Lyon university hospital, France (2004-2020)

    Saadatian-Elahi, Mitra / Henaff, Laetitia / Elias, Christelle / Nunes, Marta C. / Hot, Arnaud / Martin-Gaujard, Géraldine / Escuret, Vanessa / Amour, Selilah / Vanhems, Philippe

    Vaccine.

    2023  

    Abstract: Literature is limited on the impact of patient vaccination on the risk of hospital-acquired influenza (HAI). This test negative case-control study nested in a surveillance program aimed at evaluating the effectiveness of influenza vaccination in reducing ...

    Abstract Literature is limited on the impact of patient vaccination on the risk of hospital-acquired influenza (HAI). This test negative case-control study nested in a surveillance program aimed at evaluating the effectiveness of influenza vaccination in reducing the risk of HAI in hospitalized patients during 15 influenza seasons (2004-05 to 2019-20). HAI cases were those who developed influenza like illness (ILI) symptoms at least 72h after hospitalization and had a positive reverse transcriptase-polymerase chain reaction (RT-PCR). Controls were those with ILI symptoms and a negative RT-PCR test. A nasal swab as well as socio-demographic, clinical data and information on influenza vaccination were collected. Of the 296 patients included, 67 were confirmed HAI cases. Influenza vaccine coverage was significantly higher among controls compared to HAI cases (p=0.002). The risk of HAI was reduced by almost 60% in vaccinated patients. A better control of HAI can be achieved by vaccinating hospitalized patients.
    Keywords case-control studies ; hospitals ; influenza ; influenza vaccination ; influenza vaccines ; monitoring ; nose ; patients ; reverse transcriptase polymerase chain reaction ; risk ; France ; Hospital-acquired ; Vaccine ; Surveillance
    Publishing place Elsevier Ltd
    Document type Article ; Online
    Note Pre-press version
    ZDB-ID 605674-x
    ISSN 1873-2518 ; 0264-410X
    ISSN (online) 1873-2518
    ISSN 0264-410X
    DOI 10.1016/j.vaccine.2023.05.060
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Tobacco smoking and severity of COVID-19: Experience from a hospital-based prospective cohort study in Lyon, France.

    Saadatian-Elahi, Mitra / Amour, Sélilah / Elias, Christelle / Henaff, Laetitia / Dananché, Cédric / Vanhems, Philippe

    Journal of medical virology

    2021  Volume 93, Issue 12, Page(s) 6822–6827

    Abstract: Information gathered so far from published studies attest the existence of a complex relationship between tobacco smoking and the severity of COVID-19. We investigated the association between smoking habits and the severity of COVID-19 in patients ... ...

    Abstract Information gathered so far from published studies attest the existence of a complex relationship between tobacco smoking and the severity of COVID-19. We investigated the association between smoking habits and the severity of COVID-19 in patients hospitalized in university-affiliated hospitals in Lyon, France. Baseline sociodemographic, clinical and biological characteristics of adult COVID-19 hospitalized patients presenting from the community were prospectively collected and analyzed. Tobacco exposure was documented at admission. Characteristics of patients hospitalized in medical wards to those admitted or transferred to intensive care units (ICUs) were compared using Mann-Whitney and Χ
    MeSH term(s) Aged ; Aged, 80 and over ; COVID-19/pathology ; COVID-19/virology ; Female ; France ; Hospitalization ; Hospitals, University ; Humans ; Intensive Care Units ; Male ; Middle Aged ; Odds Ratio ; Prospective Studies ; Smoking/adverse effects ; Tobacco Smoking/adverse effects
    Language English
    Publishing date 2021-08-10
    Publishing country United States
    Document type Clinical Trial ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 752392-0
    ISSN 1096-9071 ; 0146-6615
    ISSN (online) 1096-9071
    ISSN 0146-6615
    DOI 10.1002/jmv.27233
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Baseline clinical features of COVID-19 patients, delay of hospital admission and clinical outcome: A complex relationship.

    Dananché, Cédric / Elias, Christelle / Hénaff, Laetitia / Amour, Sélilah / Kuczewski, Elisabetta / Gustin, Marie-Paule / Escuret, Vanessa / Saadatian-Elahi, Mitra / Vanhems, Philippe

    PloS one

    2022  Volume 17, Issue 1, Page(s) e0261428

    Abstract: Introduction: Delay between symptom onset and access to care is essential to prevent clinical worsening for different infectious diseases. For COVID-19, this delay might be associated with the clinical prognosis, but also with the different ... ...

    Abstract Introduction: Delay between symptom onset and access to care is essential to prevent clinical worsening for different infectious diseases. For COVID-19, this delay might be associated with the clinical prognosis, but also with the different characteristics of patients. The objective was to describe characteristics and symptoms of community-acquired (CA) COVID-19 patients at hospital admission according to the delay between symptom onset and hospital admission, and to identify determinants associated with delay of admission.
    Methods: The present work was based on prospective NOSO-COR cohort data, and restricted to patients with laboratory confirmed CA SARS-CoV-2 infection admitted to Lyon hospitals between February 8 and June 30, 2020. Long delay of hospital admission was defined as ≥6 days between symptom onset and hospital admission. Determinants of the delay between symptom onset and hospital admission were identified by univariate and multiple logistic regression analysis.
    Results: Data from 827 patients were analysed. Patients with a long delay between symptom onset and hospital admission were younger (p<0.01), had higher body mass index (p<0.01), and were more frequently admitted to intensive care unit (p<0.01). Their plasma levels of C-reactive protein were also significantly higher (p<0.01). The crude in-hospital fatality rate was lower in this group (13.3% versus 27.6%), p<0.01. Multiple analysis with correction for multiple testing showed that age ≥75 years was associated with a short delay between symptom onset and hospital admission (≤5 days) (aOR: 0.47 95% CI (0.34-0.66)) and CRP>100 mg/L at admission was associated with a long delay (aOR: 1.84 95% CI (1.32-2.55)).
    Discussion: Delay between symptom onset and hospital admission is a major issue regarding prognosis of COVID-19 but can be related to multiple factors such as individual characteristics, organization of care and severe pathogenic processes. Age seems to play a key role in the delay of access to care and the disease prognosis.
    MeSH term(s) Aged ; Aged, 80 and over ; COVID-19/epidemiology ; COVID-19/metabolism ; Cohort Studies ; Female ; France/epidemiology ; Hospitalization/trends ; Hospitals ; Humans ; Intensive Care Units ; Male ; Middle Aged ; Prognosis ; Prospective Studies ; Risk Factors ; SARS-CoV-2/metabolism ; SARS-CoV-2/pathogenicity ; Time-to-Treatment/trends
    Language English
    Publishing date 2022-01-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0261428
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Addressing the COVID-19 pandemic challenges for operational adaptations of a cluster randomized controlled trial on dengue vector control in Malaysia.

    Saadatian-Elahi, Mitra / Alexander, Neal / Möhlmann, Tim / Ariffin, Farah Diana / Schmitt, Frederic / Richardson, Jason H / Rabilloud, Muriel / Hamid, Nurulhusna Ab

    BMC public health

    2022  Volume 22, Issue 1, Page(s) 667

    Abstract: Introduction: The COVID-19 pandemic placed an unprecedented overload on healthcare system globally. With all medical resources being dedicated to contain the spread of the disease, the pandemic may have impacted the burden of other infectious diseases ... ...

    Abstract Introduction: The COVID-19 pandemic placed an unprecedented overload on healthcare system globally. With all medical resources being dedicated to contain the spread of the disease, the pandemic may have impacted the burden of other infectious diseases such as dengue, particularly in countries endemic for dengue fever. Indeed, the co-occurrence of COVID-19 made dengue diagnosis challenging because of some shared clinical manifestations between the two pathogens. Furthermore, the sudden emergence and novelty of this global public health crisis has forced the suspension or slow-down of several research trials due to the lack of sufficient knowledge on how to handle the continuity of research trials during the pandemic. We report on challenges we have faced during the COVID-19 pandemic and measures that were implemented to continue the iDEM project (intervention for Dengue Epidemiology in Malaysia).
    Methods: This randomized controlled trial aims to assess the effectiveness of Integrated Vector Management (IVM) on the incidence of dengue in urban Malaysia by combining: targeted outdoor residual spraying (TORS), deployment of auto-dissemination devices (ADDs), and active community engagement (CE). Our operational activities started on February 10, 2020, a few weeks before the implementation of non-pharmaceutical interventions to contain the spread of COVID-19 in Malaysia.
    Results: The three main issues affecting the continuity of the trial were: ensuring the safety of field workers during the interventions; ensuring the planned turnover of TORS application and ADD deployment and services; and maintaining the CE activities as far as possible.
    Conclusions: Even though the pandemic has created monumental challenges, we ensured the safety of field workers by providing complete personal protective equipment and regular COVID-19 testing. Albeit with delay, we maintained the planned interval time between TORS application and ADDs services by overlapping the intervention cycles instead of having them in a sequential scheme. CE activities continued remotely through several channels (e.g., phone calls and text messages). Sustained efforts of the management team, significant involvement of the Malaysian Ministry of Health and a quick and smart adaptation of the trial organisation according to the pandemic situation were the main factors that allowed the successful continuation of our research.
    Trial registration: Trial registration number: ISRCTN-81915073 . Date of registration: 17/04/2020, 'Retrospectively registered'.
    MeSH term(s) COVID-19/epidemiology ; COVID-19 Testing ; Dengue/epidemiology ; Dengue/prevention & control ; Humans ; Malaysia/epidemiology ; Pandemics/prevention & control
    Language English
    Publishing date 2022-04-06
    Publishing country England
    Document type Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 2041338-5
    ISSN 1471-2458 ; 1471-2458
    ISSN (online) 1471-2458
    ISSN 1471-2458
    DOI 10.1186/s12889-022-13026-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Diabetes as a risk factor for herpes zoster in adults: A synthetic literature review.

    Saadatian-Elahi, Mitra / Bauduceau, Bernard / Del-Signore, Corinne / Vanhems, Philippe

    Diabetes research and clinical practice

    2019  Volume 159, Page(s) 107983

    Abstract: Aim: The objective of this review was to evaluate the role of diabetes as a risk factor for herpes zoster (HZ) and to discuss implications of prevention by vaccination with available HZ vaccines.: Methods: We reviewed studies that investigated the ... ...

    Abstract Aim: The objective of this review was to evaluate the role of diabetes as a risk factor for herpes zoster (HZ) and to discuss implications of prevention by vaccination with available HZ vaccines.
    Methods: We reviewed studies that investigated the incidence rates of HZ in patients with diabetes. Papers in English or French published between January 2000 and December 2018 have been selected from PubMed and Google Scholarship by using appropriate key words.
    Results: The risk of HZ was significantly higher in patients with diabetes as compared to controls in 11 studies out of 16, although the magnitude of risk associated to diabetes varied across studies from 1.06 to 2.38 (p < 0.05). The incidence of HZ in patients with diabetes increased with age and was higher in women than in men. The incidence of the most common complication of HZ, i.e. post-herpetic neuralgia was also higher in patients with diabetes.
    Conclusions: The presence of HZ adds supplementary complications to the pre-existing comorbidity in patients with diabetes. Investigating the impact of preventive measure by HZ vaccination is therefore of paramount importance in patients with diabetes.
    MeSH term(s) Adult ; Diabetes Complications/complications ; Diabetes Complications/epidemiology ; Diabetes Complications/therapy ; Diabetes Complications/virology ; Diabetes Mellitus/epidemiology ; Female ; Herpes Zoster/epidemiology ; Herpes Zoster/etiology ; Herpes Zoster/therapy ; Herpes Zoster Vaccine/therapeutic use ; Herpesvirus 3, Human/physiology ; Humans ; Incidence ; Male ; Neuralgia, Postherpetic/therapy ; Risk Factors ; Vaccination/methods
    Chemical Substances Herpes Zoster Vaccine
    Language English
    Publishing date 2019-12-14
    Publishing country Ireland
    Document type Journal Article ; Review
    ZDB-ID 632523-3
    ISSN 1872-8227 ; 0168-8227
    ISSN (online) 1872-8227
    ISSN 0168-8227
    DOI 10.1016/j.diabres.2019.107983
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Factors Associated with Long COVID-19 in a French Multicentric Prospective Cohort Study.

    Khanafer, Nagham / Henaff, Laetitia / Bennia, Sabrina / Termoz, Anne / Chapurlat, Roland / Escuret, Vanessa / Proriol, Mathilde / Duvert, Florence / Mena, Camille / Planckaert, Catherine / Trehet-Mandez, Nadège / Saadatian-Elahi, Mitra / Vanhems, Philippe

    International journal of environmental research and public health

    2023  Volume 20, Issue 17

    Abstract: 1) Background: A substantial proportion of COVID-19 patients continue to experience long-lasting effects that hamper their quality of life. The objectives of this study were (1) to report the prevalence of persistent clinical symptoms 6-12 months after ... ...

    Abstract (1) Background: A substantial proportion of COVID-19 patients continue to experience long-lasting effects that hamper their quality of life. The objectives of this study were (1) to report the prevalence of persistent clinical symptoms 6-12 months after the onset of COVID-19 and (2) to identify potential factors at admission associated with the occurrence of long COVID. (2) Methods: A prospective study was conducted among COVID-19 adult patients, hospitalized in four French university hospitals. Patients were invited to two ambulatory follow-up medical visits, 6-8 months (visit #1) and one year (visit #2) after the onset of their COVID-19. A multivariate logistic regression was performed to assess factors associated with long COVID. (3) Results: In total, 189 patients participated in this study (mean age of 63.4 years). BMI > 30 kg/m
    MeSH term(s) Adult ; Humans ; Middle Aged ; Post-Acute COVID-19 Syndrome ; Prospective Studies ; COVID-19/epidemiology ; Quality of Life ; Ageusia
    Language English
    Publishing date 2023-08-29
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph20176678
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Patient influenza vaccination reduces the risk of hospital-acquired influenza: An incident test negative-case control study in Lyon university hospital, France (2004-2020).

    Saadatian-Elahi, Mitra / Henaff, Laetitia / Elias, Christelle / Nunes, Marta C / Hot, Arnaud / Martin-Gaujard, Géraldine / Escuret, Vanessa / Amour, Selilah / Vanhems, Philippe

    Vaccine

    2023  Volume 41, Issue 30, Page(s) 4341–4346

    Abstract: Background: Literature is limited on the impact of patient vaccination on the risk of hospital-acquired influenza (HAI). This test negative case-control study nested in a surveillance program aimed at evaluating the effectiveness of influenza ... ...

    Abstract Background: Literature is limited on the impact of patient vaccination on the risk of hospital-acquired influenza (HAI). This test negative case-control study nested in a surveillance program aimed at evaluating the effectiveness of influenza vaccination in reducing the risk of HAI in hospitalized patients during 15 influenza seasons (2004-05 to 2019-20).
    Methods: HAI cases were those who developed influenza like illness (ILI) symptoms at least 72 h after hospitalization and had a positive reverse transcriptase-polymerase chain reaction (RT-PCR). Controls were those with ILI symptoms and a negative RT-PCR test. A nasal swab as well as socio-demographic, clinical data and information on influenza vaccination were collected.
    Results: Of the 296 patients included, 67 were confirmed HAI cases. Influenza vaccine coverage was significantly higher among controls compared to HAI cases (p = 0.002). The risk of HAI was reduced by almost 60 % in vaccinated patients.
    Conclusions: A better control of HAI can be achieved by vaccinating hospitalized patients.
    MeSH term(s) Humans ; Case-Control Studies ; France/epidemiology ; Hospitalization ; Hospitals, University ; Influenza Vaccines ; Influenza, Human/epidemiology ; Influenza, Human/prevention & control ; Seasons ; Vaccination
    Chemical Substances Influenza Vaccines
    Language English
    Publishing date 2023-06-14
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 605674-x
    ISSN 1873-2518 ; 0264-410X
    ISSN (online) 1873-2518
    ISSN 0264-410X
    DOI 10.1016/j.vaccine.2023.05.060
    Database MEDical Literature Analysis and Retrieval System OnLINE

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