scholarly journals Impediments of innovation in Vaccines Development Vaccines Arguably have had an Enormous Impact on Public Health in Modern History Comparable Only to Fresh Water and Sanitation

2010 ◽  
Vol 8 (4) ◽  
pp. 764-778 ◽  
Author(s):  
Sara Ramos da Silva ◽  
Léo Heller ◽  
Jorge de Campos Valadares ◽  
Sandy Cairncross

The objective of this paper is to identify and analyse the perception of groups of dwellers of Vitória, Espírito Santo, Brazil, regarding their relationship with the water and sanitation service and aspects of water handling. Participants living in four distinct urban districts of the capital city were interviewed in their own houses and the Discourse of the Collective Subject approach was employed to order the data so obtained. The testimonies revealed the health risk to which individuals were exposed by virtue of: (i) inadequate knowledge concerning the water supply offered, (ii) lack of stimulus to exert their citizens' rights and obligations in relation to the water provided for their consumption and (iii) poor channels of communication between the community, the water and sanitation service and the local public health authority. The study concluded that there is a need to rethink the forms of information provided to the population that are presently adopted by these institutions.


Author(s):  
Sanford V. Berg

Organizations regulating the water sector have major impacts on public health and the sustainability of supply to households, industry, power generation, agriculture, and the environment. Access to affordable water is a human right, but it is costly to produce, as is wastewater treatment. Capital investments required for water supply and sanitation are substantial, and operating costs are significant as well. That means that there are trade-offs among access, affordability, and cost recovery. Political leaders prioritize goals and implement policy through a number of organizations: government ministries, municipalities, sector regulators, health agencies, and environmental regulators. The economic regulators of the water sector set targets and quality standards for water operators and determine prices that promote the financial sustainability of those operators. Their decisions affect drinking water safety and sanitation. In developing countries with large rural populations, centralized water networks may not be feasible. Sector regulators often oversee how local organizations ensure water supply to citizens and address wastewater transport, treatment, and disposal, including non-networked sanitation systems. Both rural and urban situations present challenges for sector regulators. The theoretical rationale for water-sector regulation address operator monopoly power (restricting output) and transparency, so customers have information regarding service quality and operator efficiency. Externalities (like pollution) are especially problematic in the water sector. In addition, water and sanitation enhance community health and personal dignity: they promote cohesion within a community. Regulatory systems attempt to address those issues. Of course, government intervention can actually be problematic if short-term political objectives dominate public policy or rules are established to benefit politically powerful groups. In such situations, the fair and efficient provision of water and sanitation services is not given priority. Note that the governance of economic regulators (their organizational design, values or principles, functions, and processes) creates incentives (and disincentives) for operators to improve performance. Related ministries that provide oversight of the environment, health and safety, urban and housing issues, and water resource management also influence the long-term sustainability of the water sector and associated health impacts. Ministries formulate public policy for those areas under their jurisdiction and monitor its implementation by designated authorities. Ideally, water-sector regulators are somewhat insulated from day-to-day political pressures and have the expertise (and authority) to implement public policy and address emerging sector issues. Many health issues related to water are caused or aggravated by lack of clean water supply or lack of effective sanitation. These problems can be attributed to lack of access or to lack of quality supplied if there is access. The economic regulation of utilities has an effect on public health through the setting of quality standards for water supply and sanitation, the incentives provided for productive efficiency (encouraging least-cost provision of quality services), setting tariffs to provide cash flows to fund supply and network expansion, and providing incentives and monitoring so that investments translate into system expansion and better quality service. Thus, although water-sector regulators tend not to focus directly on health outcomes, their regulatory decisions determine access to safe water and sanitation.


2012 ◽  
Vol 7 (6) ◽  
pp. 759-767 ◽  
Author(s):  
Daniele Lantagne ◽  
◽  
G. Balakrish Nair ◽  
Claudio F. Lanata ◽  
Alejandro Cravioto ◽  
...  

Ten months after a devastating earthquake on January 12, 2010, cholera appeared in Haiti for the first time in nearly a century. The secretary-general of the United Nations formed an independent panel to “investigate and seek to determine the source of the 2010 cholera outbreak in Haiti.” To fulfill this mandate, concurrent epidemiological, water and sanitation, and analysis of molecular investigations were carried out. Our findings indicated that the 2010 Haiti cholera outbreak was caused by bacteria introduced to Haiti as a result of human activity, specifically, by contamination of the Meye tributary system of the Artibonite River by a pathogenic strain of current South Asian Vibrio cholerae. Recommendations were presented to assist in preventing the future introduction and spread of cholera. The use of concurrent epidemiological, water and sanitation, and molecular analysis is recommended to public health professionals for future cholera investigations.


2013 ◽  
Vol 11 (4) ◽  
pp. 671-683 ◽  
Author(s):  
Andrew J. Leidner ◽  
Naveen C. Adusumilli

Demand for adequate provision of drinking-water and sanitation facilities to promote public health and economic growth is increasing in the rapidly urbanizing countries of the developing world. With a panel of data on Asia and Africa from 1990 to 2008, associations are estimated between the occurrence of cholera outbreaks, the case rates in given outbreaks, the mortality rates associated with cholera and two disease control mechanisms, drinking-water and sanitation services. A statistically significant and negative effect is found between drinking-water services and both cholera case rates as well as cholera-related mortality rates. A relatively weak statistical relationship is found between the occurrence of cholera outbreaks and sanitation services.


1978 ◽  
Vol 41 (5) ◽  
pp. 336-340 ◽  
Author(s):  
A. Y. SADOVSKI ◽  
B. FATTAL ◽  
D. GOLDBERG

The effect of the drip irrigation method on microbial contamination of vegetables irrigated with wastewater was evaluated. The density of microbial contamination on surfaces of cucumbers and eggplants irrigated with sewage effluent was determined, using a controlled washing procedure. The fecal coliform count on vegetables irrigated with wastewater was 38-fold higher than on vegetables irrigated with fresh water. However, agrotechnical manipulations of the drip method, such as sub-irrigation or covering the soil and the drip lines with plastic sheets, reduced bacterial contamination considerably. Similarly, the bacterial contamination on vegetables which were irrigated with sewage effluent during the first stage of growth (up to flowering) and subsequently with fresh water was not different from the contamination on vegetables which were irrigated with fresh water. The viral contamination on 27 vegetable samples which were collected from sewage irrigated experimental plots was below the level of detection. It is proposed that the drip method may be considered for wastewater irrigation of crops in accordance with generally accepted public health criteria.


Three years ago the Royal Society held a two-day discussion meeting entitled ‘Technologies for Rural Health’. The meeting was well attended, the choice of subject appeared to meet a need and many of those who spoke expressed a wish that another such meeting might take place in a few years’ time. The Society has responded and today and tomorrow we shall be discussing ‘More technologies for rural health’. This is not, however, merely a repeat performance by popular demand. It is an attempt to focus on the dominant points that emerged from the 1976 discussions in seeking to alleviate the burden of ill-health, disease and malnu­trition among the three-quarters of the world’s population who live in rural areas. Early in the programme we have placed water and sanitation, and agri­ culture and nutrition - the same priority as was given in the 1976 meeting, but during the 3 years that have elapsed the solving of the relevant problems has become more urgent and, in many cases, the problems have themselves become more complex. An example of a specific complexity is that of refugees. The forces creating refugees have rarely been absent but, in recent months, these forces have been especially active in Central America, in Africa and in Asia. I introduce this complexity to the problems of rural health with particular feeling. I have just returned from a visit to south-east Asia and was in Bangkok when the Prime Minister of Thailand announced that he had changed his mind about his country’s policy with regard to the refugees on their border with Kampuchea. The Thailand frontier would now be open to the tens of thousands of refugees seeking sanctuary, a decision obviously putting humanitarian motives before the interests of national security and public health.


2017 ◽  
Vol 1 (T3) ◽  
pp. 97-108
Author(s):  
Tuan Ngoc Le

This work aimed at calculating and assessing the adaptive capacity (AC) to the climate change (CC) of the rural fresh water and sanitation (RFWS), a case study in Can Gio for the period of 2014–2025. By index, survey, and professional adjustment methods, the AC index was considered and evaluated via two main indicator groups: infrastructures (6 indicators) and humans (13 indicators). Results show that Binh Khanh has the highest AC index, 57 points–medium high level, with strengths in infrastructure, especially in the human indicator group. The management of local government, transportation system, or social services are the highlights here. AC index in Can Thanh is runner-up with 55 points - medium high level. However, different from Binh Khanh, strengths in Can Thanh come from infrastructure group. AC indices of Ly Nhon, Tam Thon Hiep, Thanh An, Long Hoa, and An Thoi Dong are at medium low level, ranging from 43–49. By 2020, 2025, AC index increase following the increase in water supply and drainage network, social and economic development plan. This work also review strengths and weaknesses in CC adaptive capacity of RFWS in the local, supplying the basis for establishing solutions to mitigate CC impacts.


2021 ◽  
Vol 9 (12) ◽  
pp. 2543
Author(s):  
David Otto Schwake ◽  
Absar Alum ◽  
Morteza Abbaszadegan

Legionella is an environmental pathogen that is responsible for respiratory disease and is a common causative agent of water-related outbreaks. Due to their ability to survive in a broad range of environments, transmission of legionellosis is possible from a variety of sources. Unfortunately, a disproportionate amount of research that is devoted to studying the occurrence of Legionella in environmental reservoirs is aimed toward cooling towers and premise plumbing. As confirmed transmission of Legionella has been linked to many other sources, an over-emphasis on the most common sources may be detrimental to increasing understanding of the spread of legionellosis. This review aims to address this issue by cataloguing studies which have examined the occurrence of Legionella in less commonly investigated environments. By summarizing and discussing reports of Legionella in fresh water, ground water, saltwater, and distribution system drinking water, future environmental and public health researchers will have a resource to aid in investigating these pathogens in relevant sources.


BMJ ◽  
2011 ◽  
pp. d6686
Author(s):  
Eric P Heymann ◽  
Seema Biswas

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