A Retrospective Study of Climate Change Affecting Dengue: Evidences, Challenges and Future Directions

Bhatia, Surbhi; Bansal, Dhruvisha; Patil, Suhas H.; Pandya, Sharnil; Ilyas, Qazi Mudassar; Imran, Sajida

doi:10.3389/fpubh.2022.884645

Cited by 20 publications

(16 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…High humidity favors the elevated longevity of adult mosquitoes and the shortening of the viral incubation period, thereby allowing an increased transmission intensity [ 31 ]. Humidity also affects adult mosquitoes’ survival and biting frequency [ 32 ]. The results of a few other researchers have also been inconsistent and inconclusive.…”

Section: Discussionmentioning

confidence: 99%

Correlation of Dengue and Meteorological Factors in Bangladesh: A Public Health Concern

Islam

Hasan

Tiwari

et al. 2023

IJERPH

View full text Add to dashboard Cite

Dengue virus (DENV) is an enveloped, single-stranded RNA virus, a member of the Flaviviridae family (which causes Dengue fever), and an arthropod-transmitted human viral infection. Bangladesh is well known for having some of Asia’s most vulnerable Dengue outbreaks, with climate change, its location, and it’s dense population serving as the main contributors. For speculation about DENV outbreak characteristics, it is crucial to determine how meteorological factors correlate with the number of cases. This study used five time series models to observe the trend and forecast Dengue cases. Current data-based research has also applied four statistical models to test the relationship between Dengue-positive cases and meteorological parameters. Datasets were used from NASA for meteorological parameters, and daily DENV cases were obtained from the Directorate General of Health Service (DGHS) open-access websites. During the study period, the mean of DENV cases was 882.26 ± 3993.18, ranging between a minimum of 0 to a maximum of 52,636 daily confirmed cases. The Spearman’s rank correlation coefficient between climatic variables and Dengue incidence indicated that no substantial relationship exists between daily Dengue cases and wind speed, temperature, and surface pressure (Spearman’s rho; r = −0.007, p > 0.05; r = 0.085, p > 0.05; and r = −0.086, p > 0.05, respectively). Still, a significant relationship exists between daily Dengue cases and dew point, relative humidity, and rainfall (r = 0.158, p < 0.05; r = 0.175, p < 0.05; and r = 0.138, p < 0.05, respectively). Using the ARIMAX and GA models, the relationship for Dengue cases with wind speed is −666.50 [95% CI: −1711.86 to 378.86] and −953.05 [−2403.46 to 497.36], respectively. A similar negative relation between Dengue cases and wind speed was also determined in the GLM model (IRR = 0.98). Dew point and surface pressure also represented a negative correlation in both ARIMAX and GA models, respectively, but the GLM model showed a positive association. Additionally, temperature and relative humidity showed a positive correlation with Dengue cases (105.71 and 57.39, respectively, in the ARIMAX, 633.86, and 200.03 in the GA model). In contrast, both temperature and relative humidity showed negative relation with Dengue cases in the GLM model. In the Poisson regression model, windspeed has a substantial significant negative connection with Dengue cases in all seasons. Temperature and rainfall are significantly and positively associated with Dengue cases in all seasons. The association between meteorological factors and recent outbreak data is the first study where we are aware of the use of maximum time series models in Bangladesh. Taking comprehensive measures against DENV outbreaks in the future can be possible through these findings, which can help fellow researchers and policymakers.

show abstract

Section: Discussionmentioning

confidence: 99%

Correlation of Dengue and Meteorological Factors in Bangladesh: A Public Health Concern

Islam

Hasan

Tiwari

et al. 2023

IJERPH

View full text Add to dashboard Cite

show abstract

“…Infected individuals undertaking international travel can carry the virus from endemic regions to nonendemic locations, thus facilitating the wide spreading of dengue [ 61 ]. Another factor that deserves mention is climate change, a problem that has had critical public health outcomes, including its influence on dengue epidemiological rates [ 62 ]. It is believed that climate factors are able to influence dengue in an ecological manner, since they can modify the growth dynamics of the mosquito, as well as viral replication and its interaction with humans [ 63 ].…”

Section: Dengue In the Worldmentioning

confidence: 99%

Dengue as a Disease Threatening Global Health: A Narrative Review Focusing on Latin America and Brazil

et al. 2023

View full text Add to dashboard Cite

Arboviruses constitute the largest known group of viruses. These viruses are the etiological agents of pathologies known as arboviruses, with dengue being one of the most prevalent. Dengue has resulted in important socioeconomic burdens placed on different countries around the world, including those in Latin America, especially Brazil. Thus, this work intends to carry out a narrative-based review of the literature, conducted using a study of the secondary data developed through a survey of scientific literature databases, and to present the situation of dengue, particularly its distribution in these localities. Our findings from the literature demonstrate the difficulties that managers face in controlling the spread of and planning a response against dengue, pointing to the high cost of the disease for public coffers, rendering the resources that are already limited even scarcer. This can be associated with the different factors that affect the spread of the disease, including ecological, environmental, and social factors. Thus, in order to combat the disease, it is expected that targeted and properly coordinated public policies need to be adopted not only in specific localities, but also globally.

show abstract

“…Dengue virus (DENV) is synchronously expanding alongside Aedes species worldwide due to climate change [ 1 ]. DENV is a member of the Flaviviridae family in the Flavivirus genus and has four antigenically distinct serotypes designated DENV 1-4 [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Whole genome sequencing unravels cryptic circulation of divergent dengue virus lineages in the rainforest region of Nigeria

Onoja,

Oguzie,

George

et al. 2024

Emerging Microbes & Infections

View full text Add to dashboard Cite

Dengue is often misclassified and underreported in Africa due to inaccurate differential diagnoses of nonspecific febrile illnesses such as malaria, sparsity of diagnostic testing and poor clinical and genomic surveillance. There are limited reports on the seroprevalence and genetic diversity of dengue virus (DENV) in humans and vectors in Nigeria. In this study, we investigated the epidemiology and genetic diversity of dengue in the rainforest region of Nigeria. We screened 515 febrile patients who tested negative for malaria and typhoid fever in three hospitals in Oyo and Ekiti States in southern Nigeria with a combination of anti-dengue IgG/IgM/NS1 rapid test kits and metagenomic sequencing. We found that approximately 28% of screened patients had previous DENV exposure, with the highest prevalence in persons over sixty. Approximately 8% of the patients showed evidence of recent or current infection, and 2.7% had acute infection. Following sequencing of sixty samples, we assembled twenty DENV-1 genomes (3 complete and 17 partial). We found that all assembled genomes belonged to DENV-1 genotype III. Our phylogenetic analyses showed evidence of prolonged cryptic circulation of divergent DENV lineages in Oyo state. We were unable to resolve the source of DENV in Nigeria owing to limited sequencing data from the region. However, our sequences clustered closely with sequences in Tanzania and sequences reported in Chinese with travel history to Tanzania in 2019. This may reflect the wider unsampled bidirectional transmission of DENV-1 in Africa, which strongly emphasizes the importance of genomic surveillance in monitoring ongoing DENV transmission in Africa.

show abstract

A Retrospective Study of Climate Change Affecting Dengue: Evidences, Challenges and Future Directions

Cited by 20 publications

References 59 publications

Correlation of Dengue and Meteorological Factors in Bangladesh: A Public Health Concern

Correlation of Dengue and Meteorological Factors in Bangladesh: A Public Health Concern

Dengue as a Disease Threatening Global Health: A Narrative Review Focusing on Latin America and Brazil

Whole genome sequencing unravels cryptic circulation of divergent dengue virus lineages in the rainforest region of Nigeria

Contact Info

Product

Resources

About