Recommendations for travellers during the yellow fever outbreaks in Brazil—2018

Fujita, Dennis Minoru; Nali, Luiz Henrique da Silva; Salvador, Felipe Scassi; Júnior, Heitor Franco de Andrade

doi:10.1093/jtm/tay016

Cited by 9 publications

(9 citation statements)

References 3 publications

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“…ferox , Sabethes chloropterus and Sabethes soperi are known vectors in sylvatic Yellow Fever cycles (Hanley et al 2013; Abreu et al 2019). It is important to document the occurrences of such species, especially as several studies have reported on Yellow Fever outbreaks near natural areas (Fujita et al 2018; Gossner et al 2018; Hamer et al 2018; Giovanetti et al 2019 ; Siqueira et al 2019).…”

Section: Discussionmentioning

confidence: 99%

Habitat use by Neotropical mosquitoes (Diptera: Culicidae): vegetation structure and edge effects

et al. 2020

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Knowing which habitats (e.g. forest interiors or edges) are used by mosquitos and their relationship with possible environmental changes can assist in the development of public policies for the prevention of mosquito‐borne disease epidemics. This study assessed the influence of abiotic factors and vegetation structure on a mosquito community in an Atlantic rainforest remnant frequented by humans. Biting mosquito collections were undertaken by two operators and carried out every 2 weeks between October 2014 and October 2015, during the afternoon, at three points within the forest: A1 (40 m from the edge), A2 (220 m from the edge) and A3 (270 m from the edge). A significant difference was found between tree circumference at breast height from the different areas, as well as in tree height. However, no significant difference in the analysed abiotic factors between areas was observed. The paired comparison of mosquito abundance between the sample areas indicated that area A3 was different from area A1. Additionally, the abundance of the analysed species (Aedes crinifer, Aedes scapularis, Aedes serratus, Psorophora ferox, Sabethes aurescens, Sabethes identicus, Trichoprosopon pallidiventer and Wyeomyia limai) increased with distance from the forest edge. This observation may suggest that the abundance of certain species may be indicative of the level of disturbance of a forest.

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Section: Discussionmentioning

confidence: 99%

Habitat use by Neotropical mosquitoes (Diptera: Culicidae): vegetation structure and edge effects

et al. 2020

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“…North America and Europe, considered "safe places" by some Brazilian travelers, present a potential risk as sources of the reemergence of preventable infectious diseases, like measles, in Brazil. 14 According to the current data, Brazilian travelers refer to Ambulatório dos Viajantes only for international travels, disregarding that some regions of the country are highly endemic, as observed in recent outbreaks of malaria, 15 yellow fever, 16 and measles. 17 Males present more risky behavior than women 18 as evidenced by the low male demand (39.29%) and the predominance in post-travel consultation (62.96%).…”

Section: Discussionmentioning

confidence: 99%

Routine Vaccination for Travelers from Emerging Countries: Epidemiological Profile of a Public Travel Medicine Clinic in Sao Paulo/Brazil

Fujita

Miyaji²,

Lopes³

et al. 2019

Int J Travel Med Glob Health

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Introduction: Emerging countries have increased their presence in international travel (46.8% of travels). Pre- and post-travel consultations may provide insights about travelers’ health. Methods: A retrospective descriptive analysis of the medical data of all travelers assisted at Ambulatório dos Viajantes, a free public health clinic for travelers in São Paulo, Brazil, from January to December 2016 was performed. The patients were profiled based on post-travel consultation data and screened by gender, age according to the United Nations working-age population distribution (0-14 years, children; 15-24 years, youths; 25-65 years, working age; over 65 years, older persons), travel destination, and diseases that affected travelers. Results: In 2016 (n=280 appointments), 93.92% of clients received some type of vaccine (regular or booster dose). Post-travel consultations (n=27; 9.64%) were predominantly male (62.96% of appointments) and comprised cases of malaria (44.4%; 6 positive cases of Plasmodium falciparum, 4 positive cases of Plasmodium vivax, and 2 unclassified), fever (7.4%), AGE - acute gastroenteritis (7.4%), hepatitis A (3.7%), nausea (3.7%), insect bite (3.7%), abdominal pain (3.7%), arthralgia (3.7%), vaginal discharge (3.7%), and cases under investigation (18.5%). Brazilian travelers presented the same incidence of post-travel counseling as developed countries’ travel medicine clinics (~9%). Conclusion: Immunization in pre-travel counseling may reduce the importation of preventable infectious diseases and increase Brazilians’ traveler vaccine coverage, a current concern in the country.

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“…Dengue is a frequent problem in travelers [ 44 . 45 ], more frequent than ‘traditional’ travel-associated infectious diseases such as typhoid fever [ 46 ], rabies [ 47 ], and yellow fever [ 48 , 49 ]. GeoSentinel is an international network of travel medicine providers to monitor trends in travel-associated diseases [ 50 , 51 , 52 ] which has reported a substantial increase of dengue over the past decade [ 53 ].…”

Section: Dengue Vaccines For Travelersmentioning

confidence: 99%

Dengue vaccine development by the year 2020: challenges and prospects

Wilder‐Smith

2020

Current Opinion in Virology

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Highlights As a tetravalent immune response is desired, each component would need to independently result in four different monotypic immune responses that are solid to each serotype. Plaque reduction neutralization assays do not reliably differentiate between serotype-specific versus heterotypic antibodies; hence identifying immune correlates remains elusive. All three leading dengue vaccine candidates are live-attenuated vaccines, with the main difference between them being the type of backbone and the extent of chimerization. Sequential immunization or heterologous prime-boost strategies should be considered to improve a balanced protection against all four serotypes.

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Recommendations for travellers during the yellow fever outbreaks in Brazil—2018

Cited by 9 publications

References 3 publications

Habitat use by Neotropical mosquitoes (Diptera: Culicidae): vegetation structure and edge effects

Habitat use by Neotropical mosquitoes (Diptera: Culicidae): vegetation structure and edge effects

Routine Vaccination for Travelers from Emerging Countries: Epidemiological Profile of a Public Travel Medicine Clinic in Sao Paulo/Brazil

Dengue vaccine development by the year 2020: challenges and prospects

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