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Sloyer KE, Burkett-Cadena ND, Campbell LP. Predicting the potential distribution of Culex (Melanoconion) cedecei in Florida and the Caribbean using ecological niche models. JOURNAL OF VECTOR ECOLOGY : JOURNAL OF THE SOCIETY FOR VECTOR ECOLOGY 2022; 47:88-98. [PMID: 36629360 DOI: 10.52707/1081-1710-47.1.88] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/02/2022] [Indexed: 06/17/2023]
Abstract
Everglades virus (EVEV), an enzootic subtype of Venezuelan equine encephalitis virus, along with its endemic mosquito vector, Culex cedecei, is known only from South Florida. The taxonomy of Cx. cedecei is complex and was once synonymous with Culex opisthopus and Culex taeniopus. We modeled potential distribution of Cx. cedecei in Florida and the Caribbean using an ecological niche model and compared this distribution to the recorded distribution of EVEV in Florida as well as historical records of Cx. opisthopus/Cx. taeniopus. We used recent collections and occurrence data from scientific publications and temperature/precipitation variables and vegetation greenness values to calibrate models. We found mean annual temperature contributed the greatest to model performance. Everglades virus in humans and wildlife corresponded with areas predicted suitable for Cx. cedecei in Florida but not with incidence of antibodies reported in dogs. Most records of Cx. opisthopus/Cx. taeniopus in the Caribbean did not correspond to areas predicted suitable for Cx. cedecei, which may be due to mean annual temperature values in the Caribbean exceeding values within the calibration region, imposing model constraints. Results indicated that this model may adequately predict the distributions of Cx. cedecei within Florida but cannot predict areas suitable in the Caribbean.
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Affiliation(s)
- Kristin E Sloyer
- Florida Medical Entomology Laboratory, Vero Beach, FL, U.S.A.,
- Department of Entomology and Nematology, University of Florida, Gainesville, FL, U.S.A
| | - Nathan D Burkett-Cadena
- Florida Medical Entomology Laboratory, Vero Beach, FL, U.S.A
- Department of Entomology and Nematology, University of Florida, Gainesville, FL, U.S.A
| | - Lindsay P Campbell
- Florida Medical Entomology Laboratory, Vero Beach, FL, U.S.A
- Department of Entomology and Nematology, University of Florida, Gainesville, FL, U.S.A
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Invasion, establishment, and spread of invasive mosquitoes from the Culex coronator complex in urban areas of Miami-Dade County, Florida. Sci Rep 2021; 11:14620. [PMID: 34272411 PMCID: PMC8285413 DOI: 10.1038/s41598-021-94202-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 07/01/2021] [Indexed: 01/01/2023] Open
Abstract
Species from the Culex coronator complex are Neotropical species and potential vectors of Saint Louis and West Nile viruses. Culex coronator was first described in Trinidad and Tobago in the early twentieth century and since then it has invaded and has been reported established in most countries of the Americas. Species from the Culex coronator complex were first detected in the United States in the state of Louisiana in 2004 and were subsequently detected in Florida in 2005, reaching Miami-Dade County in 2008. We hypothesize that species from the Cx. coronator complex are adapting to urban environments in Miami-Dade County, Florida, and are becoming more present and abundant in these areas. Therefore, our objective was to investigate the patterns of the presence and abundance of species from the Cx. coronator complex in the urban areas of Miami-Dade County. Here we used weekly data comprised of 32 CDC traps from 2012 to 2020 and 150 BG-Sentinel traps from 2016 to 2020. A total of 34,146 female mosquitoes from the Cx. coronator complex were collected, 26,138 by CDC traps and 8008 by BG-Sentinel traps. While the number of CDC traps that were positive was relatively constant at 26–30 positive traps per year, the number of positive BG-Sentinel traps varied substantially from 50 to 87 positive traps per year. Furthermore, the heat map and logistic general linear model for repeated measures analyses showed a significant increase in both the distribution and abundance of mosquitoes from the Cx. coronator complex, indicating that these species are becoming more common in anthropized habitats being able to thrive in highly urbanized areas. The increase in the distribution and abundance of species from the Cx. coronator complex is a major public health concern. The ability of species from the Cx. coronator complex to benefit from urbanization highlights the need to better understand the mechanisms of how invasive vector mosquito species are adapting and exploiting urban habitats.
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Carrera JP, Cucunubá ZM, Neira K, Lambert B, Pittí Y, Liscano J, Garzón JL, Beltran D, Collado-Mariscal L, Saenz L, Sosa N, Rodriguez-Guzman LD, González P, Lescano AG, Pereyra-Elías R, Valderrama A, Weaver SC, Vittor AY, Armién B, Pascale JM, Donnelly CA. Endemic and Epidemic Human Alphavirus Infections in Eastern Panama: An Analysis of Population-Based Cross-Sectional Surveys. Am J Trop Med Hyg 2020; 103:2429-2437. [PMID: 33124532 PMCID: PMC7695115 DOI: 10.4269/ajtmh.20-0408] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 08/01/2020] [Indexed: 01/26/2023] Open
Abstract
Madariaga virus (MADV) has recently been associated with severe human disease in Panama, where the closely related Venezuelan equine encephalitis virus (VEEV) also circulates. In June 2017, a fatal MADV infection was confirmed in a community of Darien Province. We conducted a cross-sectional outbreak investigation with human and mosquito collections in July 2017, where sera were tested for alphavirus antibodies and viral RNA. In addition, by applying a catalytic, force-of-infection (FOI) statistical model to two serosurveys from Darien Province in 2012 and 2017, we investigated whether endemic or epidemic alphavirus transmission occurred historically. In 2017, MADV and VEEV IgM seroprevalences were 1.6% and 4.4%, respectively; IgG antibody prevalences were MADV: 13.2%, VEEV: 16.8%, Una virus (UNAV): 16.0%, and Mayaro virus: 1.1%. Active viral circulation was not detected. Evidence of MADV and UNAV infection was found near households, raising questions about its vectors and enzootic transmission cycles. Insomnia was associated with MADV and VEEV infections, depression symptoms were associated with MADV, and dizziness with VEEV and UNAV. Force-of-infection analyses suggest endemic alphavirus transmission historically, with recent increased human exposure to MADV and VEEV in Aruza and Mercadeo, respectively. The lack of additional neurological cases suggests that severe MADV and VEEV infections occur only rarely. Our results indicate that over the past five decades, alphavirus infections have occurred at low levels in eastern Panama, but that MADV and VEEV infections have recently increased-potentially during the past decade. Endemic infections and outbreaks of MADV and VEEV appear to differ spatially in some locations of eastern Panama.
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MESH Headings
- Adolescent
- Adult
- Age Distribution
- Aged
- Aged, 80 and over
- Alphavirus/immunology
- Alphavirus Infections/epidemiology
- Alphavirus Infections/immunology
- Alphavirus Infections/physiopathology
- Animals
- Antibodies, Viral/immunology
- Chikungunya Fever/epidemiology
- Chikungunya Fever/immunology
- Chikungunya Fever/physiopathology
- Chikungunya virus/immunology
- Child
- Child, Preschool
- Cross-Sectional Studies
- Depression/physiopathology
- Dizziness/physiopathology
- Encephalitis Virus, Eastern Equine/immunology
- Encephalitis Virus, Venezuelan Equine/immunology
- Encephalomyelitis, Eastern Equine/epidemiology
- Encephalomyelitis, Eastern Equine/immunology
- Encephalomyelitis, Eastern Equine/physiopathology
- Encephalomyelitis, Venezuelan Equine/epidemiology
- Encephalomyelitis, Venezuelan Equine/immunology
- Encephalomyelitis, Venezuelan Equine/physiopathology
- Endemic Diseases
- Epidemics
- Farmers/statistics & numerical data
- Fatigue/physiopathology
- Female
- Housing/statistics & numerical data
- Humans
- Immunoglobulin G
- Immunoglobulin M
- Male
- Middle Aged
- Mosquito Vectors/virology
- Panama/epidemiology
- Semliki forest virus/immunology
- Seroepidemiologic Studies
- Sleep Initiation and Maintenance Disorders/physiopathology
- Young Adult
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Affiliation(s)
- Jean-Paul Carrera
- Department of Zoology, University of Oxford, Oxford, United Kingdom
- Department of Research in Virology and Biotechnology, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Zulma M. Cucunubá
- Department of Infectious Disease Epidemiology, MRC Centre for Global Infectious Disease Analysis (MRC-GIDA), Imperial College London, London, United Kingdom
| | - Karen Neira
- Emerging Infectious Disease and Climate Change Unit, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Ben Lambert
- Department of Infectious Disease Epidemiology, MRC Centre for Global Infectious Disease Analysis (MRC-GIDA), Imperial College London, London, United Kingdom
| | - Yaneth Pittí
- Department of Research in Virology and Biotechnology, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Jesus Liscano
- School of Medicine, Columbus University, Panama City, Panama
| | - Jorge L. Garzón
- Department of Research in Virology and Biotechnology, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Davis Beltran
- Department of Research in Virology and Biotechnology, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Luisa Collado-Mariscal
- Department of Medical Entomology, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Lisseth Saenz
- Department of Research in Virology and Biotechnology, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Néstor Sosa
- Clinical Research Unit, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | | | - Publio González
- Department of Research in Emerging and Zoonotic Diseases, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Andrés G. Lescano
- Emerging Infectious Disease and Climate Change Unit, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Reneé Pereyra-Elías
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
- School of Medicine, Universidad Peruana de Ciencias Aplicadas, Lima, Perú
| | - Anayansi Valderrama
- Department of Medical Entomology, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Scott C. Weaver
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas
| | - Amy Y. Vittor
- Department of Medicine, University of Florida, Gainesville, Florida
- Emerging Pathogens Institute, University of Florida, Gainesville, Florida
| | - Blas Armién
- Department of Research in Emerging and Zoonotic Diseases, Gorgas Memorial Institute of Health Studies, Panama City, Panama
- Universidad Interamericana de Panama, Panama City, Panama
| | - Juan-Miguel Pascale
- Clinical Research Unit, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Christl A. Donnelly
- Department of Infectious Disease Epidemiology, MRC Centre for Global Infectious Disease Analysis (MRC-GIDA), Imperial College London, London, United Kingdom
- Department of Statistics, University of Oxford, Oxford, United Kingdom
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