Dengue and Chikungunya seroprevalence in waste pickers from the largest Latin American open-air dump

Cassemiro, Évelin Mota; Cilião-Alves, Daiani Cristina; Moura, Drielly Rodrigues; Slavov, Svetoslav Nanev; Quintão, Tatyane de Souza Cardoso; Scott, James A.; Marques, Carla Pintas; Obara, Marcos Takashi; Araújo, Wildo Navegantes de; Cruvinel, Vanessa Resende Nogueira; Haddad, Rodrigo

doi:10.1016/j.jinf.2021.08.042

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…Because of the familiarities of dengue among this population, waste pickers are highly knowledgeable about the symptoms of the disease as well as healthcare treatment measures, which was one of the key findings in the current study. This information was further supported by previous research as well [28] or a lack of consistency in garbage collection [21,[29][30][31][32][33][34]. This phenomenon could be perceived in two ways: 1. knowing about the symptoms enables waste pickers to seek healthcare or 2. preventing dengue amongst the frequent onset of the disease results in decreased immunity among these vulnerable groups resulting in low productivity and subsequent socioeconomic loss.…”

Section: Discussionsupporting

confidence: 75%

“…Participants highlighted that, among other contributing factors, poor sanitation, unimproved water sources, and unregulated waste alongside overcrowding and poor housing structures were contributing factors for the high prevalence of dengue in their population. Literature confirms that among other occupational health issues, dengue and other vector-borne diseases are both economic and social burdens to waster pickers across the globe [21,[32][33][34]. In a systematic review conducted in 2022 with studies in 23 geographic locations that examined the relationship between socioeconomic factors and infections caused by seven arboviruses, they found a higher risk of arbovirus infection associated with markers of lower education, income poverty, low healthcare coverage, poor housing materials, interrupted water supply [35].…”

Section: Discussionmentioning

confidence: 94%

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“Look, It’s a Dengue Mosquito”: A Qualitative Study on Living Near Open-Air Dumpsites and Vector-Borne Diseases

Zolnikov,

Clark,

Furio

et al. 2023

Adv Environ Eng Res

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Currently, almost half of the human population is at risk of acquiring dengue. Other emerging pathogens affecting human populations transmitted by <em>Aedes (Stegomyia) aegypti </em>are chikungunya and Zika viruses. People who live in poor areas are more susceptible to be infected by these diseases. The lack of selective garbage collection and inadequate water storage are important factors in the dynamics of vector-borne transmission. This study took place in Estrutural City, the poorest city in Brasilia, Brazil, which hosted the largest open dump in America Latina and second largest in the world for almost 60 years; many of the inhabitants are waste pickers, who live and survive by gathering and selling recyclable waste. A qualitative study used semi-structured interviews with 100 participants to understand the experiences regarding community knowledge on mosquitos, contributing and prevention measures, and water access. Previous research on waste pickers has focused on vector-borne diseases, their exposure, and mitigation strategies. This research uncovered novel experiences that confirmed the plethora of knowledge of this population regarding exposure to vectors, specifically dengue. Participants mentioned contributing factors to the disease, while identifying mosquitos that carry dengue, and how often and how specifically it was to have dengue. They also mention preventative techniques that they currently take and strategies to improve upon these. These findings and actions will provide new control alternatives for arboviruses in risk areas and contribute to continued public health policies and basic services to be provided to the vulnerable communities.

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Section: Discussionsupporting

confidence: 75%

Section: Discussionmentioning

confidence: 94%

“Look, It’s a Dengue Mosquito”: A Qualitative Study on Living Near Open-Air Dumpsites and Vector-Borne Diseases

Zolnikov,

Clark,

Furio

et al. 2023

Adv Environ Eng Res

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“…It is probable that the dissemination of CHIKV in the Federal District of Brazil by 2019 has not still reached epidemic proportions and therefore only a small number of blood donors have experienced infection. Recently, our group demonstrated CHIKV IgG and IgM seroprevalence of 5.94% and 3.46% respectively (overall CHIKV seroprevalence of 9.40%) among waste pickers from a dumpsite in the Federal District of Brazil 13 . These seroprevalences were higher than the observed in this study, but lower than the estimated in other Brazilian studies.…”

Section: Discussioncontrasting

confidence: 70%

Chikungunya virus seroprevalence in asymptomatic blood donors during an outbreak in the Federal District of Brazil

Mendes

Cilião-Alves

Pimentel

et al. 2022

Transfusion Medicine

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Introduction: Chikungunya virus (CHIKV) is a mosquito-borne alphavirus belonging to the Togaviridae family. The symptomatic infection is characterised by acute febrile disease which generally results in severe arthralgia and myalgia, however, most of the CHIKV infections remain asymptomatic. CHIKV RNA detection in asymptomatic volunteers may be responsible for the transfusion transmission of this infection, especially during outbreaks. There is no information for CHIKV seroprevalence among blood donors from the Federal District of Brazil. Aim: In early 2019, the Federal District of Brazil experienced a CHIKV outbreak, and this study evaluates the anti-CHIKV IgM and IgG presence in a well characterised cohort of blood donors from this region.Methodology: Blood samples were collected from 450 volunteer blood donors during a CHIKV outbreak and tested for the presence of anti-CHIKV IgG and IgM antibodies using ELISA.Results: The CHIKV seroprevalence was 0.89% (n = 4/450) and anti-CHIKV IgM prevalence was 1.11% (n = 5/450). Conclusion:The obtained results demonstrated that at least some of the blood donors have experienced CHIKV infection which can be related to a hypothetical risk of CHIKV transfusion transmission. More studies are necessary in order to examine the impact of CHIKV on blood transfusion.

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“…Plastic containers and other waste can collect rainwater and have been shown to serve as breeding grounds for multiple mosquito species [ 15 , 16 , 23 , 42 – 45 ]. A recent study in Brazil demonstrated increased seroprevalence of DENV and CHIKV in waste pickers at an open-air landfill [ 46 ]. The waste management infrastructure in western and coastal Kenya is changing but is reliant on households who often take their trash to a shared site as opposed to burning near their home.…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal overlapping of dengue, chikungunya, and malaria infections in children in Kenya

et al. 2023

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Malaria, chikungunya virus (CHIKV), and dengue virus (DENV) are endemic causes of fever among children in Kenya. The risks of infection are multifactorial and may be influenced by built and social environments. The high resolution overlapping of these diseases and factors affecting their spatial heterogeneity has not been investigated in Kenya. From 2014-2018, we prospectively followed a cohort of children from four communities in both coastal and western Kenya. Overall, 9.8% were CHIKV seropositive, 5.5% were DENV seropositive, and 39.1% were malaria positive (3521 children tested). The spatial analysis identified hot-spots for all three diseases in each site and in multiple years. The results of the model showed that the risk of exposure was linked to demographics with common factors for the three diseases including the presence of litter, crowded households, and higher wealth in these communities. These insights are of high importance to improve surveillance and targeted control of mosquito-borne diseases in Kenya.

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Dengue and Chikungunya seroprevalence in waste pickers from the largest Latin American open-air dump

Cited by 7 publications

References 10 publications

“Look, It’s a Dengue Mosquito”: A Qualitative Study on Living Near Open-Air Dumpsites and Vector-Borne Diseases

“Look, It’s a Dengue Mosquito”: A Qualitative Study on Living Near Open-Air Dumpsites and Vector-Borne Diseases

Chikungunya virus seroprevalence in asymptomatic blood donors during an outbreak in the Federal District of Brazil

Spatiotemporal overlapping of dengue, chikungunya, and malaria infections in children in Kenya

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