scholarly journals Vector-borne diseases in Brazil: climate change and future warming scenarios

2020 ◽  
Vol 11 (3) ◽  
pp. 361-404
Author(s):  
Bruno Moreira de Carvalho ◽  
Leticia Palazzi Perez ◽  
Beatriz Fatima Alves de Oliveira ◽  
Ludmilla da Silva Viana Jacobson ◽  
Marco Aurélio Horta ◽  
...  
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Spatial Distribution ◽  
Visceral Leishmaniasis ◽  
Yellow Fever ◽  
Health Sector ◽  
Climate Conditions ◽  
Vector Borne Diseases ◽  
Climate Suitability ◽  
Vector Borne

Climate change affects human health either directly or indirectly, and related impacts are complex, non-linear, and depend on several variables. The various climate change impacts on health include a change in the spatial distribution of vector-borne diseases. In this regard, this study presents and discusses changes in the spatial distribution of climate suitability for visceral leishmaniasis, yellow fever and malaria in Brazil, in different global warming scenarios. Maximum entropy (MaxEnt) was used to construct climate suitability models in warming scenarios. Models were based in climate variables generated by the Eta-HadGEM2 ES regional model, in the baseline period 1965-2005 and RCP8.5 scenario, representing global warming levels of 1,5ºC (2011-2040), 2,0ºC (2041-2070) and 4,0ºC (2071-2099). The three diseases studied are largely influenced by climate and showed different distribution patterns within the country. In global warming scenarios, visceral leishmaniasis found more favorable climate conditions in the Southeastern and Southern regions of Brazil, while climate in the Northern and Center-West regions gradually became more favorable to yellow fever. In malaria scenarios, an increase in favorable climate conditions to its high incidence was observed in the Atlantic Forest, where currently extra-Amazonian cases occur. The scenarios presented herein represent different possible consequences for the health sector in terms of adopting (or not) different measures to mitigate climate change in Brazil, such as reducing the emission of greenhouse gases.  

scholarly journals Seven Ways Climate Change Threatens U.S. Population's Health

Eos ◽  
2016 ◽  
Vol 97 ◽  
Author(s):  
Randy Showstack
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Health Risks ◽  
Mental Stress ◽  
Vector Borne Diseases ◽  
Global Change Research Program ◽  
Global Change Research ◽  
Vector Borne ◽  
Water Issues ◽  
The U.S

A report by the U.S. Global Change Research Program finds health risks from global warming tied to heat, air quality, vector-borne diseases, water issues, extreme weather, nutrition, and mental stress.

scholarly journals Arbovirus Infections: the Challenges of Controlling an Ever-Present Enemy

2009 ◽  
Vol 4 (5) ◽  
pp. 322-328 ◽  
Author(s):  
Tomohiko Takasaki ◽  
◽  
Akira Kotaki ◽  
Chang-Kweng Lim ◽  
Shigeru Tajima ◽  
...  
Keyword(s):  
Global Warming ◽  
Dengue Fever ◽  
Yellow Fever ◽  
Japanese Encephalitis ◽  
Rift Valley ◽  
Rift Valley Fever ◽  
West Nile Fever ◽  
Valley Fever ◽  
Vector Borne Diseases ◽  
Vector Borne

Arthropod-borne infections carried by mosquitoes and ticks are difficult to eradicate, once rooted, and have frequently caused wide-area epidemics such as dengue fever, West Nile fever, chikungunya fever, yellow fever, Japanese encephalitis and Rift Valley fever. Factors such as global warming and overpopulation have aggravated urban epidemics caused by dengue and chikungunya viruses. Measures against arthropods have their limitations, however, so nonepidemic areas must be protected against invasion by vector-borne diseases through quarantine, education and effective vaccination.

Adaptation of Animal and Human Health Surveillance Systems for Vector-Borne Diseases Accompanying Climate Change

2020 ◽  
Vol 48 (4) ◽  
pp. 694-704
Author(s):  
Sam F. Halabi
Keyword(s):  
Climate Change ◽  
Infectious Diseases ◽  
Human Health ◽  
Disease Surveillance ◽  
Surveillance Systems ◽  
Climate Conditions ◽  
Vector Borne Diseases ◽  
Disease Surveillance System ◽  
Vector Borne ◽  
Inspection Service

Anthropogenic climate change is causing temperature rise in temperate zones resulting in climate conditions more similar to subtropical zones. As a result, rising temperatures increase the range of disease-carrying insects to new areas outside of subtropical zones, and increased precipitation causes flooding that is more hospitable for vector breeding. State governments, the federal government, and governmental agencies, like the Animal and Plant Health Inspection Service (APHIS) of USDA and the National Notifiable Disease Surveillance System (NNDSS) of the U.S. Centers for Disease Control and Prevention, lack a coordinated plan for vector-borne disease accompanying climate change. APHIS focuses its surveillance primarily on the effect of illness on agricultural production, while NNDSS focuses on the emergence of pathogens affecting human health. This article provides an analysis of the current framework of surveillance of, and response to, vector-borne infectious diseases, the impacts of climate change on the spread of vector-borne infectious diseases, and recommends changes to federal law to address these threats.

scholarly journals Mainstreaming Climate Adaptation Planning and Action into Health Systems in Fiji, Ghana, and Benin

2021 ◽  
Author(s):  
Stefanie Tye ◽  
Jacob Waslander
Keyword(s):  
Climate Change ◽  
Health Systems ◽  
Climate Adaptation ◽  
Health Sector ◽  
Lessons Learned ◽  
Health Plans ◽  
Enabling Factors ◽  
Vector Borne Diseases ◽  
Climate Resilience ◽  
Vector Borne

Climate change is impacting human health and straining heavily burdened health services everywhere. Recognition of the linkages between climate change and health systems, such as shifts in vector-borne diseases and decreased access to services, is growing, yet many countries are still struggling both to mainstream, or integrate, climate adaptation into their health plans and to implement activities on the ground. This paper shares case studies from Fiji, Ghana, and Benin, three countries making progress with mainstreaming climate change adaptation into planning and implementation in health systems. The authors outline the enabling factors, challenges and lessons learned across these three countries, followed by recommendations to mainstream climate adaptation and build climate resilience in the health sector.

The Spread of Mosquito Borne Disease – Is Climate Change Beginning to Bite?

2019 ◽  
Vol 30 (5) ◽  
pp. 192-194
Author(s):  
John (Luke) Lucas
Keyword(s):  
Climate Change ◽  
Vector Borne Diseases ◽  
Vector Borne

The author considers the threat to vector-borne diseases in the light of climate change.

scholarly journals Synergistic impacts of global warming and thermohaline circulation collapse on amphibians

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Julián A. Velasco ◽  
Francisco Estrada ◽  
Oscar Calderón-Bustamante ◽  
Didier Swingedouw ◽  
Carolina Ureta ◽  
...  
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Thermohaline Circulation ◽  
Climate Model ◽  
Global Climate ◽  
Extinction Risk ◽  
Meridional Overturning Circulation ◽  
Mitigation Strategies ◽  
Amphibian Species ◽  
Climate Conditions

AbstractImpacts on ecosystems and biodiversity are a prominent area of research in climate change. However, little is known about the effects of abrupt climate change and climate catastrophes on them. The probability of occurrence of such events is largely unknown but the associated risks could be large enough to influence global climate policy. Amphibians are indicators of ecosystems’ health and particularly sensitive to novel climate conditions. Using state-of-the-art climate model simulations, we present a global assessment of the effects of unabated global warming and a collapse of the Atlantic meridional overturning circulation (AMOC) on the distribution of 2509 amphibian species across six biogeographical realms and extinction risk categories. Global warming impacts are severe and strongly enhanced by additional and substantial AMOC weakening, showing tipping point behavior for many amphibian species. Further declines in climatically suitable areas are projected across multiple clades, and biogeographical regions. Species loss in regional assemblages is extensive across regions, with Neotropical, Nearctic and Palearctic regions being most affected. Results underline the need to expand existing knowledge about the consequences of climate catastrophes on human and natural systems to properly assess the risks of unabated warming and the benefits of active mitigation strategies.

scholarly journals Effect of climate change and deforestation on vector borne diseases in the North-Eastern Indian state of Mizoram bordering Myanmar

2021 ◽  
pp. 100015
Author(s):  
Balasubramani Karuppusamy ◽  
Devojit Kumar Sarma ◽  
Pachuau Lalmalsawma ◽  
Lalfakzuala Pautu ◽  
Krishanpal Karmodiya ◽  
...  
Keyword(s):  
Climate Change ◽  
Vector Borne Diseases ◽  
The North ◽  
North Eastern ◽  
Indian State ◽  
Vector Borne

Pre and post flooding malaria parasitemia in gravid women, South East, Nigeria

2021 ◽  
Vol 2 (5) ◽  
Author(s):  
Ekwebene OC ◽  
◽  
Obidile VC ◽  
Nnamani CP ◽  
Eleje GU ◽  
...  
Keyword(s):  
Climate Change ◽  
Pregnant Women ◽  
Health Care Professionals ◽  
Malaria Parasite ◽  
P Value ◽  
Cross Sectional ◽  
Vector Borne Diseases ◽  
Seasonal Flooding ◽  
Vector Borne ◽  
The Relationship

The effect of global change on the incidence of vector borne diseases including malaria is of great importance. Malaria has been regarded as one of the most sensitive disease that responds fast to climate change. Pregnant women tend to have reduced immunity are more vulnerable to vector borne diseases such as malaria especially with climate change like flooding where these vectors borne diseases are endemic. To measure malaria parasitaemia in gravid women pre and post flooding and also to determine the relationship between malaria and seasonal flooding in South east Nigeria. This was a hospital-based cross-sectional study involving pregnant women aged 15- 45 years attending the antenatal clinics of two maternity centres in a rural community South east Nigeria. Malaria was determined using the thick and thick blood films. Plasmodium falciparum species was examined in this study. Chi-square was used to assess the relationship between malaria and seasonal flooding. One Hundred and fifty pregnant women were recruited for the study. The prevalence of malaria in the gravid women pre and post flooding were 60.00% and 65.30% respectively. Malaria parasite was highest in the gravid women aged 28-31 years and the primigravids. There was no statistical difference between malaria and parity. The mean parasite density in the gravid women was significantly higher post flooding than pre flooding with p-value of 0.001. There was no significant relationship between malaria parasite in gravid women and the periods of investigation. The prevalence of malaria parasite among gravid women in the study area is high regardless of the seasonal flooding. Hence, the need for adherence to malaria prophylaxis protocol by the health care professionals and increase on community health education on malaria preventive strategies.

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