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  1. AU="Camille Fritzell"
  2. AU=Wei Huijun
  3. AU="Levine, Morgan E"
  4. AU="Chen, Yalei"
  5. AU="Rogaeva, Ekaterina" AU="Rogaeva, Ekaterina"
  6. AU="Jain, Ishaan"
  7. AU="Chatelier, Josh"
  8. AU="Passarelli, L."
  9. AU="Marques, R"
  10. AU="Restaino, Valeria"
  11. AU="Wang, Haochen"
  12. AU=Shoib Sheikh
  13. AU=Patel Ishan
  14. AU="Mongioì, Laura M"
  15. AU="Fernández-Pacheco, Borja Camacho"
  16. AU=Waghmare Alpana AU=Waghmare Alpana
  17. AU="Peyre, Marion"
  18. AU=Mulazimoglu L
  19. AU=Roy Satyaki
  20. AU="Li Yuanyuan"
  21. AU=Khan Shehryar
  22. AU=Cole Sarah L
  23. AU="Júnior, Raimundo Nonato Colares Camargo"
  24. AU="Feeney, Judith A"

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  1. Artikel ; Online: Emerging trends of Zika apprehension in an epidemic setting.

    Camille Fritzell / Jocelyn Raude / Mirdad Kazanji / Claude Flamand

    PLoS Neglected Tropical Diseases, Vol 12, Iss 1, p e

    2018  Band 0006167

    Abstract: French Guiana is a territory that has a decades-long history of dengue outbreaks and more recently, in 2014, a chikungunya outbreak. Zika virus (ZIKV) emerged in late 2015 and subsequently led to an important outbreak.A cross-sectional phone survey was ... ...

    Abstract French Guiana is a territory that has a decades-long history of dengue outbreaks and more recently, in 2014, a chikungunya outbreak. Zika virus (ZIKV) emerged in late 2015 and subsequently led to an important outbreak.A cross-sectional phone survey was conducted among the general population during the outbreak in June 2016 with a total of 1,129 individuals interviewed to assess perceptions, knowledge and behaviors regarding zika infection. The population seemed aware of zika, and perceived the infection as a more serious health threat than other common mosquito-borne diseases. Furthermore, both the perceptions and behaviors related to zika and its prevention were found to vary considerably among different social groups, geographic areas and gender; less educated female participants were found to perceive the disease as more worrisome and were less likely to adopt protective behaviors. Moreover, female population has been particularly responsive to awareness campaigns and rapidly understood the extent of risks associated with ZIKV infection.These results revealed that ZIKV appeared at the time of the survey as a new health threat that concerns the public more than chikungunya and dengue fever with differences observed among subgroups of population. These results have implications for the development of multifaceted infection control programs, including strategies for prevention and awareness, helping the population to develop an accurate perception of the threat they are facing and encouraging behavior changes.
    Schlagwörter Arctic medicine. Tropical medicine ; RC955-962 ; Public aspects of medicine ; RA1-1270
    Sprache Englisch
    Erscheinungsdatum 2018-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
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  2. Artikel ; Online: The Role of Risk Proximity in the Beliefs and Behaviors Related to Mosquito-Borne Diseases: The Case of Chikungunya in French Guiana.

    Flamand, Claude / Camille Fritzell / Pauline Obale / Quenel, Philippe / Raude, Jocelyn

    The American journal of tropical medicine and hygiene

    2017  Band 97, Heft 2, Seite(n) 344–355

    Abstract: Human behaviors are increasingly recognized to play a key role in the spread of infectious diseases. Although a set of social and cognitive determinants has been consistently found to affect the adoption of health protective behaviors aiming to control ... ...

    Abstract Human behaviors are increasingly recognized to play a key role in the spread of infectious diseases. Although a set of social and cognitive determinants has been consistently found to affect the adoption of health protective behaviors aiming to control and prevent a variety of infections, little is currently known about the ecological drivers of these behaviors in epidemic settings. In this article, we took advantage of the outbreak of chikungunya, a reemerging mosquito-borne disease, that occurred in French Guiana in 2014-15 to test empirically the assumption proposed by Zielinski-Gutierrez and Hayden that the proximity of the disease and perceptions of the natural environment may considerably shape public response to an emerging health threat. To achieve this, a cross-sectional survey was conducted among high school students of the region (
    Mesh-Begriff(e) Adolescent ; Adolescent Behavior/psychology ; Attitude to Health ; Chikungunya Fever/epidemiology ; Chikungunya Fever/prevention & control ; Chikungunya Fever/psychology ; Communicable Diseases/epidemiology ; Communicable Diseases/psychology ; Cross-Sectional Studies ; Disease Outbreaks ; Female ; French Guiana/epidemiology ; Health Knowledge, Attitudes, Practice ; Humans ; Male ; Prevalence ; Risk Assessment ; Students/psychology ; Young Adult
    Sprache Englisch
    Erscheinungsdatum 2017-08
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2942-7
    ISSN 1476-1645 ; 0002-9637
    ISSN (online) 1476-1645
    ISSN 0002-9637
    DOI 10.4269/ajtmh.16-1028
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Transmission dynamics of Q fever in French Guiana

    Sarah Bailly / Nathanaël Hozé / Sylvie Bisser / Aurélien Zhu-Soubise / Camille Fritzell / Sandrine Fernandes-Pellerin / Adija Mbouangoro / Dominique Rousset / Félix Djossou / Simon Cauchemez / Claude Flamand

    The Lancet Regional Health. Americas, Vol 16, Iss , Pp 100385- (2022)

    A population-based cross-sectional studyResearch in context

    2022  

    Abstract: Summary: Background: Q fever is a zoonosis caused by Coxiella burnetii which is among the major agents of community-acquired pneumonia in French Guiana. Despite its relatively high incidence, its epidemiology in French Guiana remains unclear, and all ... ...

    Abstract Summary: Background: Q fever is a zoonosis caused by Coxiella burnetii which is among the major agents of community-acquired pneumonia in French Guiana. Despite its relatively high incidence, its epidemiology in French Guiana remains unclear, and all previous studies have considered transmission from livestock unlikely, suggesting that a wild reservoir is responsible for transmission. Methods: A country-wide seroprevalence survey of 2697 participants from French Guiana was conducted. Serum samples were tested for phase II IgG antibodies by ELISA and indirect immunofluorescence assays (IFAs). Factors associated with Q fever were investigated, and a serocatalytic model was used to reconstruct the annual force of infection. Findings: The overall weighted seroprevalence was estimated at 9.6% (95% confidence interval (CI): 8.2%–11.0%). The model revealed constant, low-level circulation across French Guiana, particularly affecting middle-aged males (odds ratio (OR): 3.0, 95% credible interval (CrI): 1.7–5.8) and individuals living close to sheep farms (OR: 4, 95% CrI: 1.5–12). The overall annual number of cases was estimated at 579 (95% CrI: 492–670). In the region around Cayenne, the main urban municipality, the high seroprevalence was explained by an outbreak that may have occurred between 1996 and 2003 and that infected 10% (95% CrI: 6.9%–14%) of the population and males and females alike. Interpretation: This study reveals for the first time Q fever dynamics of transmission and the role of domestic livestock in transmission in French Guiana and highlights the urgent need to reinforce Q fever surveillance in livestocks of the entire Guianese territory. Funding: This study was supported by the “European Regional Development Fund” under EPI-ARBO grant agreement (GY0008695), the “Regional Health Agency of French Guiana” and the “National Center of Spatial Studies”. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
    Schlagwörter Public aspects of medicine ; RA1-1270
    Thema/Rubrik (Code) 333
    Sprache Englisch
    Erscheinungsdatum 2022-12-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
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  4. Artikel ; Online: Perceptions of COVID-19 among communities of Conakry (Guinea)

    Joanna Orne-Gliemann / Alexandre Delamou / Mélanie Plazy / Marie-Hélène Doucet / Christine Timbo Songbono / Caroline Martin / Camille Fritzell / Mamadou Saliou Sow / Fodé Amara Traoré / Marie Jaspard / Armel Poda / Olivier Marcy

    BMJ Open, Vol 12, Iss

    a qualitative study exploring the context of the ANRS COV33 Coverage-Africa therapeutic trial

    2022  Band 12

    Abstract: Objectives To explore communities’ perceptions about COVID-19 in the context of the ANRS COV33 Coverage-Africa clinical trial evaluating the efficacy of treatments in preventing clinical worsening of COVID-19.Design Descriptive qualitative study using ... ...

    Abstract Objectives To explore communities’ perceptions about COVID-19 in the context of the ANRS COV33 Coverage-Africa clinical trial evaluating the efficacy of treatments in preventing clinical worsening of COVID-19.Design Descriptive qualitative study using semistructured in-depth individual interviews conducted by telephone in French and Soussou between May and September 2021. Data were transcribed, translated in French when applicable and analysed with the thematic analysis method.Setting The eight neighbourhoods most affected by COVID-19 in Conakry’s urban context, capital of Guinea.Participants 4 community leaders acting as key informants—providing insights regarding population’s opinions—and six community members, who were exposed to an information session conducted as part of Coverage-Africa.Results According to participants, community members have heterogeneous viewpoints about COVID-19: it exists and is dangerous; it is benign (‘bad cold’); or it is fictitious (eg, government conspiracy). The fear of stigmatisation and social isolation of those sick or cured of COVID-19 was largely reported by participants, with illustrations of distressing situations for the victims. To avoid stigma, many patients seem to adopt strategies of discretion (eg, lying/hiding about the disease). Although community attitudes were reported to have evolved since the beginning of the epidemic, stigma remained a pervasive concern for many people.Conclusions Community perceptions about COVID-19 in Conakry may be partly explained by the Guinean context of Ebola history and of sociopolitical tensions. Stigmatisation of COVID+ people seems to be aimed at protecting others against contamination. However, social avoidance can greatly affect the morale of stigmatised people, especially in collectivist cultures like Guinea. Further investigating stigma, including its role on seeking COVID-19 screening and treatment services, and its consequences on mental health among affected/exposed people, would contribute to identifying improved prevention ...
    Schlagwörter Medicine ; R
    Thema/Rubrik (Code) 360
    Sprache Englisch
    Erscheinungsdatum 2022-12-01T00:00:00Z
    Verlag BMJ Publishing Group
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  5. Artikel ; Online: ZIKA Virus infection in pregnant women in French Guiana

    Edouard Hallet / Claude Flamand / Dominique Rousset / Timothée Bonifay / Camille Fritzell / Séverine Matheus / Maryvonne Dueymes / Balthazar Ntab / Mathieu Nacher

    PLoS Neglected Tropical Diseases, Vol 14, Iss 3, p e

    More precarious-more at risk.

    2020  Band 0008193

    Abstract: BACKGROUND:A recent study in French Guiana suggested that populations living in precarious neighborhoods were more at risk for Chikungunya CHIKV than those living in more privileged areas. The objective of the present study was to test the hypothesis ... ...

    Abstract BACKGROUND:A recent study in French Guiana suggested that populations living in precarious neighborhoods were more at risk for Chikungunya CHIKV than those living in more privileged areas. The objective of the present study was to test the hypothesis that Zika virus (ZIKV) infection was more frequent in precarious pregnant women than in non-precarious pregnant women, as reflected by their health insurance status. METHODS:A multicentric cross-sectional study was conducted in Cayenne hospital including ZIKV pregnant women with serological or molecular proof of ZIKV during their pregnancy between January and December 2016. Health insurance information was recorded at delivery, which allowed separating women in: undocumented foreigners, precarious but with residence permit, and non-precarious. RESULTS:A total of 6654 women were included. Among them 1509 (22,7%) had confirmed ZIKV infection. Most women were precarious (2275/3439) but the proportion of precarious women was significantly greater in ZIKV-confirmed 728/906 (80.4%) than the ZIKV-negatives 1747/2533 (69.0%), p<0.0001. There were 1142 women classified as non-precarious, 1671 were precarious legal residents, and 1435 were precarious and undocumented. Precariousness and undocumented status were associated with a higher prevalence of ZIKV during pregnancy (adjusted prevalence ratio = 1.59 (95%CI = 1.29-1.97), p<0.0001), (adjusted prevalence ratio = 1.5 (95%CI = 1.2-1.8), p<0.0001), respectively. CONCLUSIONS:These results illustrate that in French Guiana ZIKV transmission disproportionately affected the socially vulnerable pregnant women, presumably because of poorer housing conditions, and lack of vector control measures in poor neighborhoods.
    Schlagwörter Arctic medicine. Tropical medicine ; RC955-962 ; Public aspects of medicine ; RA1-1270
    Sprache Englisch
    Erscheinungsdatum 2020-03-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Artikel ; Online: Current challenges and implications for dengue, chikungunya and Zika seroprevalence studies worldwide

    Camille Fritzell / Dominique Rousset / Antoine Adde / Mirdad Kazanji / Maria D Van Kerkhove / Claude Flamand

    PLoS Neglected Tropical Diseases, Vol 12, Iss 7, p e

    A scoping review.

    2018  Band 0006533

    Abstract: BACKGROUND:Arboviral infections are a public health concern and an escalating problem worldwide. Estimating the burden of these diseases represents a major challenge that is complicated by the large number of unapparent infections, especially those of ... ...

    Abstract BACKGROUND:Arboviral infections are a public health concern and an escalating problem worldwide. Estimating the burden of these diseases represents a major challenge that is complicated by the large number of unapparent infections, especially those of dengue fever. Serological surveys are thus required to identify the distribution of these diseases and measure their impact. Therefore, we undertook a scoping review of the literature to describe and summarize epidemiological practices, findings and insights related to seroprevalence studies of dengue, chikungunya and Zika virus, which have rapidly expanded across the globe in recent years. METHODOLOGY/PRINCIPAL FINDINGS:Relevant studies were retrieved through a literature search of MEDLINE, WHOLIS, Lilacs, SciELO and Scopus (2000 to 2018). In total, 1389 publications were identified. Studies addressing the seroprevalence of dengue, chikungunya and/or Zika written in English or French and meeting the inclusion and exclusion criteria were included. In total, 147 studies were included, from which 185 data points were retrieved, as some studies used several different samples. Most of the studies were exclusively conducted on dengue (66.5%), but 16% were exclusively conducted on chikungunya, and 7 were exclusively conducted on Zika; the remainder were conducted on multiple arboviruses. A wide range of designs were applied, but most studies were conducted in the general population (39%) and in households (41%). Although several assays were used, enzyme-linked immunosorbent assays (ELISAs) were the predominant test used (77%). The temporal distribution of chikungunya studies followed the virus during its rapid expansion since 2004. The results revealed heterogeneity of arboviruses seroprevalence between continents and within a given country for dengue, chikungunya and Zika viruses, ranging from 0 to 100%, 76% and 73% respectively. CONCLUSIONS/SIGNIFICANCE:Serological surveys provide the most direct measurement for defining the immunity landscape for infectious diseases, ...
    Schlagwörter Arctic medicine. Tropical medicine ; RC955-962 ; Public aspects of medicine ; RA1-1270
    Thema/Rubrik (Code) 001
    Sprache Englisch
    Erscheinungsdatum 2018-07-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  7. Artikel ; Online: Knowledge, Attitude and Practices of Vector-Borne Disease Prevention during the Emergence of a New Arbovirus

    Camille Fritzell / Jocelyn Raude / Antoine Adde / Isabelle Dusfour / Philippe Quenel / Claude Flamand

    PLoS Neglected Tropical Diseases, Vol 10, Iss 11, p e

    Implications for the Control of Chikungunya Virus in French Guiana.

    2016  Band 0005081

    Abstract: BACKGROUND:During the last decade, French Guiana has been affected by major dengue fever outbreaks. Although this arbovirus has been a focus of many awareness campaigns, very little information is available about beliefs, attitudes and behaviors ... ...

    Abstract BACKGROUND:During the last decade, French Guiana has been affected by major dengue fever outbreaks. Although this arbovirus has been a focus of many awareness campaigns, very little information is available about beliefs, attitudes and behaviors regarding vector-borne diseases among the population of French Guiana. During the first outbreak of the chikungunya virus, a quantitative survey was conducted among high school students to study experiences, practices and perceptions related to mosquito-borne diseases and to identify socio-demographic, cognitive and environmental factors that could be associated with the engagement in protective behaviors. METHODOLOGY/PRINCIPAL FINDINGS:A cross-sectional survey was administered in May 2014, with a total of 1462 students interviewed. Classrooms were randomly selected using a two-stage selection procedure with cluster samples. A multiple correspondence analysis (MCA) associated with a hierarchical cluster analysis and with an ordinal logistic regression was performed. Chikungunya was less understood and perceived as a more dreadful disease than dengue fever. The analysis identified three groups of individual protection levels against mosquito-borne diseases: "low" (30%), "moderate" (42%) and "high" (28%)". Protective health behaviors were found to be performed more frequently among students who were female, had a parent with a higher educational status, lived in an individual house, and had a better understanding of the disease. CONCLUSIONS/SIGNIFICANCE:This study allowed us to estimate the level of protective practices against vector-borne diseases among students after the emergence of a new arbovirus. These results revealed that the adoption of protective behaviors is a multi-factorial process that depends on both sociocultural and cognitive factors. These findings may help public health authorities to strengthen communication and outreach strategies, thereby increasing the adoption of protective health behaviors, particularly in high-risk populations.
    Schlagwörter Arctic medicine. Tropical medicine ; RC955-962 ; Public aspects of medicine ; RA1-1270
    Thema/Rubrik (Code) 360
    Sprache Englisch
    Erscheinungsdatum 2016-11-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  8. Artikel ; Online: Reconstructing Mayaro virus circulation in French Guiana shows frequent spillovers

    Nathanaël Hozé / Henrik Salje / Dominique Rousset / Camille Fritzell / Jessica Vanhomwegen / Sarah Bailly / Matthieu Najm / Antoine Enfissi / Jean-Claude Manuguerra / Claude Flamand / Simon Cauchemez

    Nature Communications, Vol 11, Iss 1, Pp 1-

    2020  Band 9

    Abstract: Mayaro virus (MAYV) is an emerging arbovirus, but cross-reactivity with other alphaviruses makes analysis of its epidemiology difficult. Here, the authors develop an analytical framework to assess MAYV epidemiology and find evidence for an important ... ...

    Abstract Mayaro virus (MAYV) is an emerging arbovirus, but cross-reactivity with other alphaviruses makes analysis of its epidemiology difficult. Here, the authors develop an analytical framework to assess MAYV epidemiology and find evidence for an important sylvatic cycle and seroprevalences of up to 18% in some areas of French Guiana.
    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2020-06-01T00:00:00Z
    Verlag Nature Publishing Group
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  9. Artikel ; Online: Reconstructing Mayaro virus circulation in French Guiana shows frequent spillovers

    Nathanaël Hozé / Henrik Salje / Dominique Rousset / Camille Fritzell / Jessica Vanhomwegen / Sarah Bailly / Matthieu Najm / Antoine Enfissi / Jean-Claude Manuguerra / Claude Flamand / Simon Cauchemez

    Nature Communications, Vol 11, Iss 1, Pp 1-

    2020  Band 9

    Abstract: Mayaro virus (MAYV) is an emerging arbovirus, but cross-reactivity with other alphaviruses makes analysis of its epidemiology difficult. Here, the authors develop an analytical framework to assess MAYV epidemiology and find evidence for an important ... ...

    Abstract Mayaro virus (MAYV) is an emerging arbovirus, but cross-reactivity with other alphaviruses makes analysis of its epidemiology difficult. Here, the authors develop an analytical framework to assess MAYV epidemiology and find evidence for an important sylvatic cycle and seroprevalences of up to 18% in some areas of French Guiana.
    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2020-06-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  10. Artikel ; Online: Vaccination coverage in the context of the emerging Yellow Fever threat in French Guiana.

    Claude Flamand / Sarah Bailly / Camille Fritzell / Sandrine Fernandes Pellerin / Alhassane Toure / Naïssa Chateau / Mona Saout / Sébastien Linares / Fabien Dubois / Laurent Filleul / Mirdad Kazanji

    PLoS Neglected Tropical Diseases, Vol 13, Iss 8, p e

    2019  Band 0007661

    Abstract: Background French Guiana, a French overseas department located in South America between Brazil and Surinam, is the only European territory geographically located in the Amazonian forest complex and is considered endemic for yellow fever (YF). In the ... ...

    Abstract Background French Guiana, a French overseas department located in South America between Brazil and Surinam, is the only European territory geographically located in the Amazonian forest complex and is considered endemic for yellow fever (YF). In the context of the emergent threat of YF in Latin America, we conducted a large household cross-sectional survey from June to October 2017 to estimate vaccination coverage in the population and to determine associations with sociodemographic and geographical characteristics. Methodology/principal findings In total, 1,415 households and 2,697 individuals were included from the 22 municipalities of French Guiana. YF vaccination coverage was estimated at 95.0% (95% CI: 93.4-96.2) in the entire territory but was spatially heterogeneous, with the lowest levels estimated in the western part of the territory along the Surinamese cross-border region, particularly in children under 16 years who were not enrolled in school, immigrant adults and disadvantaged populations with low socioeconomic indexes. Conclusions/significance Despite the good vaccination coverage against YF in the general population of French Guiana resulting from the compulsory nature of YF vaccination for residents and travelers, there is an urgent need to improve vaccination coverage in vulnerable populations living in the northwestern part of the territory to limit the risk of transmission in the context of the emerging YF threat in South America. Despite the relative rarity of YF and the significant number of infectious and tropical diseases in French Guiana, clinicians should adopt a high index of suspicion for YF, particularly in vulnerable and at-risk populations.
    Schlagwörter Arctic medicine. Tropical medicine ; RC955-962 ; Public aspects of medicine ; RA1-1270
    Sprache Englisch
    Erscheinungsdatum 2019-08-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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