Ongoing outbreak of dengue type 1 in the Autonomous Region of Madeira, Portugal: preliminary report

Sousa, Carla A.; Clairouin, M; Seixas, Gonçalo; Viveiros, Bela; Novo, Maria Teresa Lourenço Marques; Silva, Adivânia Cardoso da; Escoval, M T; Economopoulou, A.

doi:10.2807/ese.17.49.20333-en

Cited by 125 publications

(117 citation statements)

References 8 publications

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“…2 Sendo Angola território de endemicidade para o mesmo, não havia, contudo, registo de epidemias até Março-Abril de 2013, quando foi declarado um surto com epicentro em Luanda. 3 O Brasil, onde a doença é endémica, é até hoje o líder no núme-ro de casos reportados à Organização Mundial de Saúde (OMS).…”

Section: Introductionunclassified

“…30 A identificação de casos autóctones de dengue a partir de Setembro de 2012 31 (com alerta a partir de 3 de Outubro) e subsequente identificação do serotipo vírico DENV-1 em amostras humanas marcou o início do surto. 2 Foram identificados 2 187 casos prováveis -1 084 foram confirmados laboratorialmente. 31 A maioria apresentou febre e poucos cursaram com hemorragias.…”

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“…O Aedes aegypti não foi ainda detetado na outra ilha do arquipélago, Porto Santo. 2,35 É importante que casos futuros sejam alvo de serotipagem, devido ao risco de infeção heteróloga. 30 A Madeira é foco de preocupação a nível europeu, pois o grande número de viajantes para este destino turístico levou à exportação de casos para outros países, como a Finlândia, Alemanha, Reino Unido 34,36 (e Portugal continental).…”

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Dengue nos Países da Lusofonia: Que Ligações Epidemiológicas Poderemos Traçar?

Silvano

Abreu

2014

Acta Med Port

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Acta Med Port 2014 Jul-Aug;27(4):503-510 RESUMOIntrodução: A ocorrência recente de um conjunto de surtos de dengue em países da lusofonia previamente livres de doença, despertou-nos curiosidade quanto aos fatores concorrentes para o fenómeno e a necessidade de aprofundar conhecimentos quanto à patologia. Revemos a situação relativa à dengue nos países da lusofonia, relacionando os diferentes surtos e procurando contribuir para um melhor conhecimento do fenómeno. ABSTRACT Introduction:The recent occurrence of a number of outbreaks of dengue Portuguese speaking countries with no previous disease, aroused curiosity about the competing factors for the phenomenon and a need for better knowledge of the pathology. We review the dengue-related situation in Portuguese speaking countries, linking the various outbreaks and trying to contribute to a better understanding of the phenomenon. Material and Methods:Review of the literature on the topic and relevant information obtained from oral communications were included. Results:The outbreaks occurred between the years of 2009 and 2013 in Cabo Verde, Madeira and Angola (excluding the endemic phenomenon in Brazil), share the same vector Aedes aegypti, but are due to different viral serotypes, as shown by genotypic studies. The strong sub-notification of the disease in Africa and lack of diagnostic tools prevent a true characterization of the situation. Discussion: The hypothesis of a link between some of the outbreaks is not completely rejected. The Portuguese territory could be exposed to an increasingly high risk of dengue introduction, not only because of the proximity with these territories, but also because of the current climate changes. The main fight is, in spite of the yet utopic emergent tools, the vector control. Conclusion:A link between the outbreaks has not been proven but local preparation of healthcare professionals, creation of public health strategies and maintenance of surveillance systems are needed. More epidemiological and entomological studies are needed to characterize the real incidence of disease in Portuguese speaking countries.

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Section: Introductionunclassified

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Dengue nos Países da Lusofonia: Que Ligações Epidemiológicas Poderemos Traçar?

Silvano

Abreu

2014

Acta Med Port

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“…In 2012, a major outbreak of dengue occurred on the island of Madeira [50]. The DENV-1 outbreak involving >2100 cases began in October 2012 and continued through March 2013.…”

Section: Europementioning

confidence: 99%

Dengue: Update on Epidemiology

Wilson

Chen

2014

Curr Infect Dis Rep

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The epidemiology of dengue fever has undergone major shifts in recent decades. The global distribution has expanded to include more geographic areas. The intensity of transmission and the severity of infections have increased in areas where infection was already endemic. Multiple studies provide a clearer picture of the epidemiology and allow mapping of its distribution and change over time. Despite major efforts to control transmission, competent vectors now infest most tropical and subtropical regions; Aedes albopictus, also a competent vector, is able to survive in temperate areas, placing parts of Europe and North America at risk for local transmission. Many research teams in dengue-endemic areas are working to identify key local weather, vector, and other variables that would allow prediction of a likely epidemic early enough to permit interventions to avert it or blunt its impact.

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“…The evidence base predominantly constitutes data on arthropods, plants and algae taken from journal articles published since 2001 (Table 3), and much of the available evidence represents first reports of illness or injury resulting from exposure to alien species. Five studies provide the first reports of transmission of exotic diseases (two of Chikungunya virus and three of dengue fever) by non-native mosquito species of the Aedes genus (A. albopictus and A. aegypti) established within Europe [15][16][17][18][19]. Two adults were infected with dengue in France in 2010 [16], and around 17 in Croatia following identification of dengue fever in a returning German tourist the same year [17].…”

Section: Mapping the Quantity Of Papers Relevant To The Questionmentioning

confidence: 99%

Evidence for changes in the occurrence, frequency or severity of human health impacts resulting from exposure to alien species in Europe: a systematic map

et al. 2017

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Background: Alien species are frequently considered a serious environmental threat but negative impacts on human health through injury, allergy, or as vectors of disease sometimes have the most dire consequences for human livelihoods. Climate change and the increasing magnitude and frequency of introductions of species across geographic barriers as a result of international trade are likely to change their establishment, spread, abundance, physiology or phenology, potentially also altering their human health impacts. Yet despite receiving increasing attention in the scientific literature, there have been few attempts to quantify recent changes in human health impacts. Here we report the findings from a systematic map of the literature identifying evidence of any change in the occurrence, frequency or severity of impacts of alien species on human health in Europe over the last 25 years. Methods:We conducted a systematic search of the ecological and medical literature using English language search terms to identify potentially relevant studies. Search results were assessed against inclusion criteria published in an a priori protocol at title, abstract and full-text to determine their suitability for inclusion in the review. Repeatability was checked at each stage by comparing a subset between reviewers and testing for inter-rater agreement using Cohen's kappa test. Studies deemed relevant at full text were coded against bibliographic, inclusion and study design criteria to create a searchable database of evidence. Results:Searches retrieved over 15,700 results yet only sixteen cases met criteria for inclusion in the systematic map. Most of this evidence represents first records of impacts from different areas, and in particular first reports of transmission of exotic diseases by introduced mosquito species. Conclusions:There is currently limited published evidence demonstrating a change in the occurrence, frequency or severity of human health impacts caused by alien species in Europe over the last 25 years. Relevant studies relate to only a few species, often report specific cases and rarely link health impacts with ecology, distribution or spread of the species. Difficulties in attributing human health impacts, such as stings or allergies, to a specific alien species likely complicate attempts to measure changes, as may differences in professional interests between the environmental and health professions. Future studies could helpfully compare spread or abundance with reported, rather than potential, health impacts. Better cooperation between invasion ecologists and health professionals working in affected areas are likely to be necessary to improve the evidence base on this topic for the future.

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Ongoing outbreak of dengue type 1 in the Autonomous Region of Madeira, Portugal: preliminary report

Cited by 125 publications

References 8 publications

Dengue nos Países da Lusofonia: Que Ligações Epidemiológicas Poderemos Traçar?

Dengue nos Países da Lusofonia: Que Ligações Epidemiológicas Poderemos Traçar?

Dengue: Update on Epidemiology

Evidence for changes in the occurrence, frequency or severity of human health impacts resulting from exposure to alien species in Europe: a systematic map

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