Leptospirosis seroprevalence and exposure factors in three informal settlements of French Guiana: An opportunistic survey Article Swipe
Paul LE TURNIER
,
Margot Oberlis
,
Anne Lavergne
,
Loïc Epelboin
,
Mathieu Picardeau
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1371/journal.pntd.0013764
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1371/journal.pntd.0013764
Background Leptospirosis is a zoonotic disease of increasing importance in French Guiana. It particularly affects subjects living in precarious conditions. We aimed to determine the seroprevalence and the risk of exposure to leptospirosis among inhabitants of three informal settlements in French Guiana. Methods A serological investigation was conducted in 2022 in three informal settlements in the area of Cayenne, the main city of French Guiana. Leptospirosis exposure factors were assessed in volunteers aged > 15 through a standardized questionnaire. Leptospirosis seroprevalence was evaluated with Microscopic Agglutination Test (MAT) using 17 pathogenic Leptospira antigens with a reactivity threshold of 1:100. Results In 266 participants, median [IQR] age was 42 [34–52] and male to female sex ratio was 0.9. Most participants were migrants (96%), mainly from Haiti (83%), and lived in the study area for at least 2 years (82%). Household rodent exposure (89%) and use of other water sources than collective standpoint (92%) were common. An at-risk occupation was reported for 68% of working participants. Leptospirosis seroprevalence was 7.5% (95% CI [4.7-11.4]) with Ballum and Icterohaemorrhagiae as the main serogroups. Foot skin exposure in wet environments was associated with reactive serum (OR 7.6, 95% CI [1.1 - 326.7]). Conclusion Despite a high theoretical risk of leptospirosis exposure among informal settlements inhabitants, only a few participants were seroreactive for Leptospira . This may suggest that despite at-risk exposures the effective transmission of leptospirosis remains limited within the study area. Broader serological surveys and environmental studies should clarify the areas of at-risk leptospirosis transmission in French Guiana.
Related Topics
Concepts
Leptospirosis
Seroprevalence
Direct agglutination test
Environmental health
Serology
Transmission (telecommunications)
Human settlement
Medicine
Zoonosis
Leptospira
Informal settlements
Epidemiology
Geography
Demography
Cross-sectional study
Veterinary medicine
Poverty
Public health
Young adult
Risk factor
Environmental protection
Socioeconomics
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1371/journal.pntd.0013764
- OA Status
- gold
- References
- 28
- OpenAlex ID
- https://openalex.org/W7106587786
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W7106587786Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1371/journal.pntd.0013764Digital Object Identifier
- Title
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Leptospirosis seroprevalence and exposure factors in three informal settlements of French Guiana: An opportunistic surveyWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-11-24Full publication date if available
- Authors
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Paul LE TURNIER, Margot Oberlis, Anne Lavergne, Loïc Epelboin, Mathieu PicardeauList of authors in order
- Landing page
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https://doi.org/10.1371/journal.pntd.0013764Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.1371/journal.pntd.0013764Direct OA link when available
- Concepts
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Leptospirosis, Seroprevalence, Direct agglutination test, Environmental health, Serology, Transmission (telecommunications), Human settlement, Medicine, Zoonosis, Leptospira, Informal settlements, Epidemiology, Geography, Demography, Cross-sectional study, Veterinary medicine, Poverty, Public health, Young adult, Risk factor, Environmental protection, SocioeconomicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
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28Number of works referenced by this work
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| abstract_inverted_index.may | 220 |
| abstract_inverted_index.sex | 113 |
| abstract_inverted_index.the | 24, 27, 55, 59, 129, 176, 226, 234, 245 |
| abstract_inverted_index.use | 143 |
| abstract_inverted_index.was | 46, 81, 106, 115, 157, 166, 185 |
| abstract_inverted_index.wet | 183 |
| abstract_inverted_index.> | 73 |
| abstract_inverted_index.(95% | 168 |
| abstract_inverted_index.0.9. | 116 |
| abstract_inverted_index.2022 | 49 |
| abstract_inverted_index.7.5% | 167 |
| abstract_inverted_index.7.6, | 191 |
| abstract_inverted_index.Foot | 179 |
| abstract_inverted_index.Most | 117 |
| abstract_inverted_index.Test | 86 |
| abstract_inverted_index.This | 219 |
| abstract_inverted_index.[1.1 | 194 |
| abstract_inverted_index.aged | 72 |
| abstract_inverted_index.area | 56, 131 |
| abstract_inverted_index.city | 61 |
| abstract_inverted_index.from | 123 |
| abstract_inverted_index.high | 200 |
| abstract_inverted_index.main | 60, 177 |
| abstract_inverted_index.male | 110 |
| abstract_inverted_index.only | 210 |
| abstract_inverted_index.risk | 28, 202 |
| abstract_inverted_index.skin | 180 |
| abstract_inverted_index.than | 148 |
| abstract_inverted_index.that | 222 |
| abstract_inverted_index.were | 68, 119, 152, 214 |
| abstract_inverted_index.with | 83, 93, 171, 187 |
| abstract_inverted_index.(89%) | 141 |
| abstract_inverted_index.(92%) | 151 |
| abstract_inverted_index.(MAT) | 87 |
| abstract_inverted_index.Haiti | 124 |
| abstract_inverted_index.[IQR] | 104 |
| abstract_inverted_index.aimed | 21 |
| abstract_inverted_index.among | 33, 206 |
| abstract_inverted_index.area. | 236 |
| abstract_inverted_index.areas | 246 |
| abstract_inverted_index.least | 134 |
| abstract_inverted_index.lived | 127 |
| abstract_inverted_index.other | 145 |
| abstract_inverted_index.ratio | 114 |
| abstract_inverted_index.serum | 189 |
| abstract_inverted_index.study | 130, 235 |
| abstract_inverted_index.three | 36, 51 |
| abstract_inverted_index.using | 88 |
| abstract_inverted_index.water | 146 |
| abstract_inverted_index.years | 136 |
| abstract_inverted_index.(82%). | 137 |
| abstract_inverted_index.(83%), | 125 |
| abstract_inverted_index.(96%), | 121 |
| abstract_inverted_index.1:100. | 98 |
| abstract_inverted_index.Ballum | 172 |
| abstract_inverted_index.French | 10, 40, 63, 252 |
| abstract_inverted_index.female | 112 |
| abstract_inverted_index.living | 16 |
| abstract_inverted_index.mainly | 122 |
| abstract_inverted_index.median | 103 |
| abstract_inverted_index.rodent | 139 |
| abstract_inverted_index.should | 243 |
| abstract_inverted_index.within | 233 |
| abstract_inverted_index.Broader | 237 |
| abstract_inverted_index.Despite | 198 |
| abstract_inverted_index.Guiana. | 11, 41, 64, 253 |
| abstract_inverted_index.Methods | 42 |
| abstract_inverted_index.Results | 99 |
| abstract_inverted_index.affects | 14 |
| abstract_inverted_index.at-risk | 155, 224, 248 |
| abstract_inverted_index.clarify | 244 |
| abstract_inverted_index.common. | 153 |
| abstract_inverted_index.despite | 223 |
| abstract_inverted_index.disease | 5 |
| abstract_inverted_index.factors | 67 |
| abstract_inverted_index.limited | 232 |
| abstract_inverted_index.remains | 231 |
| abstract_inverted_index.sources | 147 |
| abstract_inverted_index.studies | 242 |
| abstract_inverted_index.suggest | 221 |
| abstract_inverted_index.surveys | 239 |
| abstract_inverted_index.through | 75 |
| abstract_inverted_index.working | 162 |
| abstract_inverted_index.326.7]). | 196 |
| abstract_inverted_index.Cayenne, | 58 |
| abstract_inverted_index.antigens | 92 |
| abstract_inverted_index.assessed | 69 |
| abstract_inverted_index.exposure | 30, 66, 140, 181, 205 |
| abstract_inverted_index.informal | 37, 52, 207 |
| abstract_inverted_index.migrants | 120 |
| abstract_inverted_index.reactive | 188 |
| abstract_inverted_index.reported | 158 |
| abstract_inverted_index.subjects | 15 |
| abstract_inverted_index.zoonotic | 4 |
| abstract_inverted_index.Household | 138 |
| abstract_inverted_index.[34–52] | 108 |
| abstract_inverted_index.conducted | 47 |
| abstract_inverted_index.determine | 23 |
| abstract_inverted_index.effective | 227 |
| abstract_inverted_index.evaluated | 82 |
| abstract_inverted_index.exposures | 225 |
| abstract_inverted_index.threshold | 96 |
| abstract_inverted_index.Background | 0 |
| abstract_inverted_index.Conclusion | 197 |
| abstract_inverted_index.Leptospira | 91, 217 |
| abstract_inverted_index.associated | 186 |
| abstract_inverted_index.collective | 149 |
| abstract_inverted_index.importance | 8 |
| abstract_inverted_index.increasing | 7 |
| abstract_inverted_index.occupation | 156 |
| abstract_inverted_index.pathogenic | 90 |
| abstract_inverted_index.precarious | 18 |
| abstract_inverted_index.reactivity | 95 |
| abstract_inverted_index.standpoint | 150 |
| abstract_inverted_index.volunteers | 71 |
| abstract_inverted_index.Microscopic | 84 |
| abstract_inverted_index.[4.7-11.4]) | 170 |
| abstract_inverted_index.conditions. | 19 |
| abstract_inverted_index.inhabitants | 34 |
| abstract_inverted_index.serogroups. | 178 |
| abstract_inverted_index.serological | 44, 238 |
| abstract_inverted_index.settlements | 38, 53, 208 |
| abstract_inverted_index.theoretical | 201 |
| abstract_inverted_index.environments | 184 |
| abstract_inverted_index.inhabitants, | 209 |
| abstract_inverted_index.participants | 118, 213 |
| abstract_inverted_index.particularly | 13 |
| abstract_inverted_index.seroreactive | 215 |
| abstract_inverted_index.standardized | 77 |
| abstract_inverted_index.transmission | 228, 250 |
| abstract_inverted_index.Agglutination | 85 |
| abstract_inverted_index.Leptospirosis | 1, 65, 79, 164 |
| abstract_inverted_index.environmental | 241 |
| abstract_inverted_index.investigation | 45 |
| abstract_inverted_index.leptospirosis | 32, 204, 230, 249 |
| abstract_inverted_index.participants, | 102 |
| abstract_inverted_index.participants. | 163 |
| abstract_inverted_index.questionnaire. | 78 |
| abstract_inverted_index.seroprevalence | 25, 80, 165 |
| abstract_inverted_index.Icterohaemorrhagiae | 174 |
| cited_by_percentile_year | |
| countries_distinct_count | 1 |
| institutions_distinct_count | 5 |
| citation_normalized_percentile |