Evidence map›Paper›PMID 31877134›Full record

ArticlePLoS neglected tropical diseases2019

Hydroclimatic drivers of highly seasonal leptospirosis incidence suggest prominent soil reservoir of pathogenic Leptospira spp. in rural western China.

Karina Cucchi, Runyou Liu, Philip A Collender, Qu Cheng, Charles Li, Christopher M Hoover, Howard H Chang, Song Liang, Changhong Yang, Justin V Remais

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.6field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Review
  6. The Role of Hydrometeorological Factors in Leptospirosis Transmission in Central Java, Indonesia.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2025
    Article
  7. Article
  8. Article
  9. Investigation of Leptospirosis Agents in Cattle and Humans.The Malaysian journal of medical sciences : MJMS · 2024
    Article
  10. Detection of Genes Related to Antibiotic Resistance inTropical medicine and infectious disease · 2024
    Article
  11. Article
  12. Article
  13. Analysing the outbreaks of leptospirosis after floods in Kerala, India.International journal of health geographics · 2024
    Article
  14. Review
  15. Article
  16. Article
  17. Effect of Sewerage on the Contamination of Soil with PathogenicEnvironmental science & technology · 2021
    Article
  18. Leptospirosis and Coinfection: Should We Be Concerned?International journal of environmental research and public health · 2021
    Review
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 2 countries.

Karina CucchiUniversity of California, Berkeley, Berkeley, California, United States of America.ORCID 0000-0001-9907-6432
Runyou LiuSichuan Center for Disease Control and Prevention, Chengdu, Sichuan, China.
Philip A CollenderUniversity of California, Berkeley, Berkeley, California, United States of America.ORCID 0000-0003-1130-7123
Qu ChengUniversity of California, Berkeley, Berkeley, California, United States of America.ORCID 0000-0003-3074-9218
Charles LiUniversity of California, Berkeley, Berkeley, California, United States of America.
Christopher M HooverUniversity of California, Berkeley, Berkeley, California, United States of America.ORCID 0000-0003-1976-8493
Howard H ChangEmory University, Atlanta, Georgia, United States of America.
Song LiangUniversity of Florida, Gainesville, Florida, United States of America.
Changhong YangSichuan Center for Disease Control and Prevention, Chengdu, Sichuan, China.
Justin V RemaisUniversity of California, Berkeley, Berkeley, California, United States of America.ORCID 0000-0002-0223-4615
University of California, Berkeley · USSichuan Center for Disease Control and Prevention · CNEmory University · USUniversity of Florida · US

Funding

Spatio-temporal data integration methods for infectious disease surveillanceR01AI125842 · NIAID · UNIVERSITY OF CALIFORNIA BERKELEY · PI CHANG, HOWARD H, REMAIS, JUSTIN V · 2017 to 2021
$3.6M
Effects of agricultural expansion and intensification on infectionsR01TW010286 · FIC · UNIVERSITY OF SOUTH FLORIDA · PI REMAIS, JUSTIN V, ROHR, JASON ROBERT · 2015 to 2019
$2.4M
FIC NIH HHS R01 TW010286NIAID NIH HHS R01 AI125842
6 · The paper itself

Abstract

Climate exerts complex influences on leptospirosis transmission, affecting human behavior, zoonotic host population dynamics, and survival of the pathogen in the environment. Here, we describe the spatiotemporal distribution of leptospirosis incidence reported to China's National Infectious Disease Surveillance System from 2004-2014 in an endemic region in western China, and employ distributed lag models at annual and sub-annual scales to analyze its association with hydroclimatic risk factors and explore evidence for the potential role of a soil reservoir in the transmission of Leptospira spp. More than 97% of the 2,934 reported leptospirosis cases occurred during the harvest season between August and October, and most commonly affected farmers (83%). Using a distributed lag Poisson regression framework, we characterized incidence rate ratios (IRRs) associated with interquartile range increases in precipitation of 3.45 (95% confidence interval 2.57-4.64) over 0-1-year lags, and 1.90 (1.18-3.06) over 0-15-week lags. Adjusting for soil moisture decreased IRRs for precipitation at both timescales (yearly adjusted IRR: 1.05, 0.74-1.49; weekly adjusted IRR: 1.36, 0.72-2.57), suggesting precipitation effects may be mediated through soil moisture. Increased soil moisture was positively associated with leptospirosis at both timescales, suggesting that the survival of pathogenic Leptospira spp. in moist soils may be a critical control on harvest-associated leptospirosis transmission in the study region. These results support the hypothesis that soils may serve as an environmental reservoir and may play a significant yet underrecognized role in leptospirosis transmission.

Indexed as

Disease ReservoirsDisease Transmission, InfectiousSoil MicrobiologyAdolescentAdultAgedAged, 80 and overChildChild, PreschoolChinaFemaleHumansIncidenceInfantInfant, NewbornLeptospirosis

Identifiers

PMID31877134
PMCPMC6948824
OpenAlexW2997388633

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.