scholarly journals To Kill or to Repel Mosquitoes? Exploring Two Strategies for Protecting Humans and Reducing Vector-Borne Disease Risks by Using Pyrethroids as Spatial Repellents

Pathogens ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1171
Author(s):  
M. Moreno-Gómez ◽  
M. A. Miranda ◽  
R. Bueno-Marí
Keyword(s):  
Public Health ◽  
Vector Control ◽  
Field Experiments ◽  
Limited Attention ◽  
Global Public Health ◽  
Vector Borne Diseases ◽  
Spatial Repellents ◽  
Mosquito Mortality ◽  
Vector Borne ◽  
Sublethal Doses

Although control efforts are improving, vector-borne diseases remain a global public health challenge. There is a need to shift vector control paradigms while developing new products and programmes. The importance of modifying vector behaviour has been recognised for decades but has received limited attention from the public health community. This study aims to: (1) explore how the use of spatial repellents at sublethal doses could promote public health worldwide; (2) propose new methods for evaluating insecticides for use by the general public; and (3) identify key issues to address before spatial repellents can be adopted as complementary vector control tools. Two field experiments were performed to assess the effects of an insecticidal compound, the pyrethroid transfluthrin, on Aedes albopictus mosquitoes. The first examined levels of human protection, and the second looked at mosquito knockdown and mortality. For the same transfluthrin dose and application method, the percent protection remained high (>80%) at 5 h even though mosquito mortality had declined to zero at 1 h. This result underscores that it matters which evaluation parameters are chosen. If the overarching goal is to decrease health risks, sublethal doses could be useful as they protect human hosts even when mosquito mortality is null.

scholarly journals Vectors and vector-borne diseases in Qatar: current status, key challenges and future prospects

2021 ◽  
pp. 1-12
Author(s):  
F. Schaffner ◽  
D. Bansal ◽  
K. Mardini ◽  
S.A. Al-Marri ◽  
M.H.J. Al-Thani ◽  
...  
Keyword(s):  
Public Health ◽  
Vector Control ◽  
Disease Transmission ◽  
Eastern Mediterranean ◽  
Current Status ◽  
Global Public Health ◽  
Future Prospects ◽  
Vector Borne Diseases ◽  
Sustainable Solutions ◽  
Vector Borne

Vector-borne diseases (VBDs) have re-emerged worldwide due to urbanisation, increase in travel and climate change, becoming a major and serious threat to global public health. In Qatar, the concern has recently risen because of the attribution of the soccer 2022 FIFA World Cup Qatar™, which necessitates fulfilling requirements in terms of prevention and preparedness for disease transmission, including VBDs. This review presents a general overview about current status of vectors and VBDs in Qatar and addresses key challenges and future prospects of control programmes and strategies. It is based on a vector control situation analysis and needs assessment performed during an expert mission in Qatar, November 2017, organised by the WHO Eastern Mediterranean Regional Office and achieved in collaboration with the Ministry of Public Health of Qatar and other local stakeholders. The situation of vectors and VBDs of public health importance in Qatar was analysed based on a systematic literature review by December 31, 2019. The literature reveals that no locally transmitted VBD cases have been recorded in Qatar, but cases were recorded among expatriate workers and travellers who returned from an endemic country. However, data on VBD cases remain scarce except for malaria. The presence of native arthropod vectors is under-recorded to date. A compilation of literature data revealed reports of 30 vector species, including 20 mosquitoes, 2 fleas, 1 louse, 1 fly, and 6 ticks. Overall, Qatar benefits currently from a good surveillance of some VBDs (malaria) and has some capacities in vector control, but no national plan exists, and vector surveillance is in its infancy. In Qatar, clear needs exist in capacity in epidemiology and vector entomology, as well as on the organisational level, and a number of measures are suggested to mitigate and improve VBD risk assessment and management. There is an urgent need to define sustainable solutions for VBD control, management and prevention, and a number of recommendations are suggested.

scholarly journals Mosquito-Borne Diseases Related Knowledge and Perception among Residents of Semi Urban Region of Eastern Nepal

2017 ◽  
Vol 6 (1) ◽  
pp. 36-43 ◽  
Author(s):  
Alok Acharya ◽  
Amar Kumar Yadav ◽  
Priya Upadhyay ◽  
Surendra Kumar
Keyword(s):  
Public Health ◽  
Behavior Change ◽  
Vector Control ◽  
Environmental Changes ◽  
Urban Region ◽  
Bed Nets ◽  
Behavior Change Communication ◽  
Vector Borne Diseases ◽  
Change Communication ◽  
Vector Borne

Background : Mosquito borne diseases are endemic in most part of the country. While public health efforts are placed towards the elimination of major vector borne diseases like malaria and filariasis, climatic and manmade environmental changes has led to threats of reemergence of mosquito borne diseases like dengue and chikungunya in new regions. There are needs of studies among community people regarding knowledge and perception of vector borne diseases to change the attitudes of people towards vector control and avoid risky behavior by application of behavior change communication tools.Material & Methods: A cross sectional study was done among households from 2 wards of Tankisinwari VDC in semi-urban region near Biratnagar sub-metropolitan city. The study duration was of 3 months from November 27 2014 to February 27 2015. Study population was 566 and 654 households from 2 wards. Among them, 57 from one ward and 65 from other ward, a total of 122 households were taken proportionately from both wards. Data was entered into excel sheet and analysis was done using SPSS 16.Results: People who heard of filariasis as disease transmitted by mosquito bite were 23.8% and malaria (89.3%), Dengue (19.6%). Among the participants, 85% responded that mosquito borne disease can be prevented in their area while 4.9% and 6.6% only heard of indoor residual spraying and insecticide treated bed nets respectively. Among those who did not know about breeding places of mosquito, 29.2% were illiterates, who were significantly more than literates 5.1% (p<0.05). Among those who were aware of environmental vector control measure, closed drainage was preferred by 52.5% and disposal of waste by burial or burning was practiced by 64.4%.Conclusion: There is need of public health intervention with interactive tools of behavior change communication in the community to enhance perception about mosquito and mosquito borne diseases.Journal of Nobel Medical CollegeVolume 6, Number 1, Issue 10 (January-June, 2017), Page: 36-43 

scholarly journals Management of insecticides for use in disease vector control: a global survey

2020 ◽  
Author(s):  
Henk van den Berg ◽  
Haroldo Sergio da Silva Bezerra ◽  
Emmanuel Chanda ◽  
Samira Al-Eryani ◽  
Bhupender Nath Nagpal ◽  
...  
Keyword(s):  
Vector Control ◽  
Management Practices ◽  
Critical Role ◽  
Worker Safety ◽  
External Support ◽  
Vector Borne Diseases ◽  
Global Survey ◽  
Pesticide Management ◽  
Country Level ◽  
Vector Borne

Abstract Background: Vector control plays a critical role in the prevention, control and elimination of vector-borne diseases, and interventions of vector control continue to depend largely on the action of chemical insecticides. A global survey was conducted on the management practices of vector control insecticides at country level to identify gaps to inform future strategies on pesticide management, seeking to improve efficacy of interventions and reduce the side effects of chemicals used on health and the environment.Methods: A survey by questionnaire on the management practices of vector control insecticides was disseminated among all WHO Member States. Data were analysed using descriptive statistics.Results: Responses were received from 94 countries, or a 48% response rate . Capacity for insecticide resistance monitoring was established in 68-80% of the countries in most regions, often with external support; however, this capacity was largely lacking from the European & Others Region. Procurement of vector control insecticides was in 50-75% of countries taking place by agencies other than the central-level procuring agency, over which the central authorities lacked control, for example, to select the product or assure product quality. Moreover, some countries experienced problems with estimating the correct amounts for procurement, especially for emergency purposes. Large fractions of countries across regions showed shortcomings in worker safety, pesticide storage practices, and pesticide waste disposal. Shortcomings were most pronounced in countries of the European & Others region, which has long been relatively free from mosquito-borne diseases but have recently faced challenges of re-emerging vector-borne diseases.Conclusions: Critical shortcomings in the management of vector control insecticides are common in countries across regions, with risks of adverse pesticide effects on health and the environment. Advocacy and resource mobilization are needed at regional and country level to address these challenges.

scholarly journals THE IMPACT OF GLOBAL WARMING ON THE PUBLIC HEALTH INCREASING THE BACTERIAL CAUSING INFECTIOUS DISEASES PERFORMED BY EXPERIMENT: VECTOR-BORNE DISEASES INSECTS, TAIF, KSA

2017 ◽  
Vol 5 (5) ◽  
pp. 42-53
Author(s):  
Sherifa Mostafa M. Sabra ◽  
Samar Ahamed
Keyword(s):  
Public Health ◽  
Global Warming ◽  
Infectious Diseases ◽  
Vector Borne Diseases ◽  
The Public ◽  
Colony Forming Unit ◽  
Tapinoma Sessile ◽  
Vector Borne ◽  
The Mean ◽  
The Impact

The search conducted on "The impact of global warming (GW) on the public health (PH) increasing the bacterial causing infectious diseases (IDs) performed by experiment: Vector-borne diseases (VBDs) insects, Taif, KSA", the experiment used ants (Taif Tapinoma sessile), prepared, arranged appropriate nests and adjusted the temperature at (20, 25, 30, 35, 40 and 45°C), for a week of each zone. It revealed the behaviour as (normal, semi-normal and ab-normal), the mean of mortality rates were between (0-53.3%). The bacterial contents measured by the turbidity indicated the presence of multiplication, were between (0.109-0.328). The bacterial growth degrees by sings were between (+ - +++++) and percent between (12-100%). Colony Forming Unit/ml (CFU/ml) confined between (1.8X102-15.0X102)/mL. Through this experiment it turned out the GW had a significant role on the PH, helped the proliferation of bacterial pathogens that caused IDS. The conclusion wiped from the experiment that the extent degrees of GW disadvantages on the PH. The PH workers must take the "Preventive Health Prophylaxis Measures" (PHPMs) to protect the individuals from IDs by eliminating the VBDs of various types, monitoring the immunological situation of individuals, provided the vaccinations of IDs and preparing for complete PHPMs against any changes in the PH.

A look at photodynamic inactivation as a tool for pests and vector-borne diseases control

2022 ◽  
Vol 19 (2) ◽  
pp. 025601
Author(s):  
Alessandra R Lima ◽  
Lucas D Dias ◽  
Matheus Garbuio ◽  
Natalia M Inada ◽  
Vanderlei S Bagnato
Keyword(s):  
Public Health ◽  
Low Cost ◽  
Reactive Oxidative Species ◽  
Photodynamic Inactivation ◽  
Health Issues ◽  
Vector Borne Diseases ◽  
Control Techniques ◽  
The Past ◽  
Vector Borne ◽  
Oxidative Species

Abstract The control of pests and vector-borne diseases (VDBs) are considered public health issues Worldwide. Among the control techniques and pesticides used so far, photodynamic inactivation (PDI) has been shown as an eco-friendly, low cost, and efficient approach to eliminate pests and VDBs. PDI is characterized using a photosensitizing molecule, light and molecular oxygen (O2) resulting in production of reactive oxidative species which can promote the oxidation of biomolecules on pests and vectors. Herein, we review the past 51 years (1970–2021) regarding the use of photo pesticides, reporting the most important parameters for the protocol applied, the results obtained, and limitations. Moreover, we described the mechanism of action of the PDI, main classes of photopesticides used so far as well as the cell death mechanism resulting from the photodynamic action.

Introduction

2020 ◽  
pp. 1-10
Author(s):  
John M. Drake ◽  
Michael B. Bonsall ◽  
Michael R. Strand
Keyword(s):  
Public Health ◽  
Population Biology ◽  
River Blindness ◽  
Vector Borne Diseases ◽  
Lost Productivity ◽  
Vector Borne

This book concerns the population biology of vector-borne diseases. Vector-borne diseases of people are a perennial challenge for public health. Although recent decades have enjoyed major declines in the incidence of diseases like malaria and onchocerciasis (river blindness), vector-borne diseases continue to claim the lives of more than 700,000 people per year and exact costs of tens of billions of dollars in expenses for control and through lost productivity (...

Risk Management and Risk Communication in the Case of Vector-Borne Disease

2021 ◽  
pp. 714-725
Author(s):  
Sekovska Blagica ◽  
Stefanovska Jovana
Keyword(s):  
Public Health ◽  
Risk Management ◽  
Public Awareness ◽  
Risk Governance ◽  
Vector Borne Diseases ◽  
Hemorrhagic Fevers ◽  
Health Concept ◽  
Vector Borne ◽  
The Republic ◽  
Health Model

Change in environmental and socio-economic, emerging zoonotic diseases will be an increasing challenge for public health in Europe and in Macedonia also. The risks and consequences triggered by vector-borne diseases (VBD) for public health in Macedonia are just starting to emerge in public awareness. This is clearly shown by recent events such as spread of hemorrhagic fevers in Europe. The term “public health” in the scope of this chapter suggests re-conceptualization of public health by adapting the risk governance framework developed by the International Risk Governance Council (IRGC) for this purpose. The IRGC approach is distinguished from more classical risk governance approaches, inter alia, by an explicit inclusion of a systematic concern assessment. However, unfortunately, not all countries are adapted on this innovative public health model. This chapter shows results of a risk management study based on interview in depth with the officials regard public health risk, in frame of one health concept in the Republic of Macedonia.

scholarly journals Vaccine and Therapeutic Options To Control Chikungunya Virus

2017 ◽  
Vol 31 (1) ◽  
Author(s):  
Ann M. Powers
Keyword(s):  
Vector Control ◽  
Future Development ◽  
Chikungunya Virus ◽  
Therapeutic Options ◽  
Protective Measures ◽  
Vector Borne Diseases ◽  
Advantages And Disadvantages ◽  
Vector Borne ◽  
And Control ◽  
Integrated Vector Control

SUMMARYBeginning in 2004, chikungunya virus (CHIKV) went from an endemic pathogen limited to Africa and Asia that caused periodic outbreaks to a global pathogen. Given that outbreaks caused by CHIKV have continued and expanded, serious consideration must be given to identifying potential options for vaccines and therapeutics. Currently, there are no licensed products in this realm, and control relies completely on the use of personal protective measures and integrated vector control, which are only minimally effective. Therefore, it is prudent to urgently examine further possibilities for control. Vaccines have been shown to be highly effective against vector-borne diseases. However, as CHIKV is known to rapidly spread and generate high attack rates, therapeutics would also be highly valuable. Several candidates are currently being developed; this review describes the multiple options under consideration for future development and assesses their relative advantages and disadvantages.

Multisectoral approaches for the control of vector-borne diseases, with particular emphasis on dengue and housing

2019 ◽  
Vol 113 (12) ◽  
pp. 823-828
Author(s):  
Olaf Horstick ◽  
Silvia Runge-Ranzinger
Keyword(s):  
Vector Control ◽  
Sustainable Development Goals ◽  
Basic Research ◽  
Policy Recommendations ◽  
The Sustainable Development ◽  
Larval Habitats ◽  
Vector Borne Diseases ◽  
Effective Interventions ◽  
Development Goals ◽  
Vector Borne

Abstract The Sustainable Development Goals suggest an intersectoral approach for development and health, including for vector-borne diseases. Evidence-based policy recommendations exist for malaria and housing, but not for other, more underfunded, vector-borne diseases. This review aims to stimulate the process for developing policy recommendations for other vector-borne diseases and housing with the process as it was developed for dengue and Aedes control as an example and with suggestions for steps necessary for other vector-borne diseases. For dengue, some basic research on the efficacy of vector control in relation to housing exists, summary evidence highlights the lack of evidence and efficacy and policy recommendations remain difficult. For other vector-borne diseases, few studies have focused on protecting the house, combinations of effective interventions (e.g. intradomiciliary residual spraying, insecticide-treated materials and treatment of larval habitats with biological and chemical methods, which have proven to be effective) have not been studied and summary evidence is non-existent. In order to recommend vector control to protect the house against vector-borne diseases, basic research and summary evidence are needed, with an appropriate combination of the most efficacious interventions and linked to improvement of housing itself. Standards for such studies need to be developed.

scholarly journals Leishmaniasis and Climate Change—Case Study: Argentina

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Oscar Daniel Salomón ◽  
María Gabriela Quintana ◽  
Andrea Verónica Mastrángelo ◽  
María Soledad Fernández
Keyword(s):  
Public Health ◽  
Climate Change ◽  
Large Scale ◽  
Local Level ◽  
Point Of View ◽  
Mitigation Strategies ◽  
Vector Borne Diseases ◽  
Scale Models ◽  
Vector Borne

Vector-borne diseases closely associated with the environment, such as leishmaniases, have been a usual argument about the deleterious impact of climate change on public health. From the biological point of view interaction of different variables has different and even conflicting effects on the survival of vectors and the probability transmission of pathogens. The results on ecoepidemiology of leishmaniasis in Argentina related to climate variables at different scales of space and time are presented. These studies showed that the changes in transmission due to change or increase in frequency and intensity of climatic instability were expressed through changes in the probability of vector-human reservoir effective contacts. These changes of contact in turn are modulated by both direct effects on the biology and ecology of the organisms involved, as by perceptions and changes in the behavior of the human communities at risk. Therefore, from the perspective of public health and state policy, and taking into account the current nonlinear increased velocity of climate change, we concluded that discussing the uncertainties of large-scale models will have lower impact than to develop-validate mitigation strategies to be operative at local level, and compatibles with sustainable development, conservation biodiversity, and respect for cultural diversity.

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