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 44,886 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Now, at the dawn of the third millennium, non-communicable diseases are sweeping the entire globe. There is an increasing trend in developing countries, where the demographic and socio-economic transition imposes more constraints on dealing with the double burden of infectious and non-infectious diseases in a poor environment, characterized by ill-health systems. It is predicted that, by 2020, non-communicable diseases will cause seven out of every ten deaths in developing countries. Among non-communicable diseases, special attention is devoted to cardiovascular disease, diabetes, cancer and chronic pulmonary disease. The burden of these conditions affects countries worldwide but with a growing trend in developing countries. Preventative strategies must take into account the growing trend of risk factors correlated to these diseases. In parallel, despite the success of vaccination programmes for polio and some childhood diseases, other diseases like AIDS, tuberculosis, malaria and dengue are still out of control in many regions of the globe. This paper is a brief review of recent literature dealing with communicable and non-communicable diseases in developing countries. It gives a global view of the main diseases and their impact on populations living in low- and middle-income nations.
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PMID:The double burden of communicable and non-communicable diseases in developing countries. 1627 15

Through the efforts of the global campaign to eradicate poliomyelitis, polio cases have declined worldwide, from 35,251 cases in 1988, to 1449 cases as of 28 October 2005. However, confirmed cases of wild polio virus continue to be reported from Northern Nigeria. This paper examines the reasons for the difficulties in eradicating polio in Northern Nigeria from the perspective of residents of one town, Zaria, in northern Kaduna State. Research methods included participant observation, open-ended interviews and the collection of polio-related documents. While some people believed that the vaccine was contaminated by anti-fertility substances, others questioned the focus on polio when measles and malaria were considered more harmful. Some also distrusted claims about the safety of Western biomedicine. These concerns relate to questions about the appropriateness of vertical health interventions, where levels of routine immunization are low. While the Polio Eradication Initiative was considered to be cost-effective by Western donors, from the perspective of some people in Zaria it was seen as undermining primary health care, suggesting that a collaborative, community-based framework for primary health care, which includes routine immunization, would be a more acceptable approach.
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PMID:Perspectives on polio and immunization in Northern Nigeria. 1676 98

The West African country of Niger (2005 population: approximately 14 million) is among the poorest in the world. In 2005, malaria was reported in approximately 760,000 persons and caused 2,000 deaths; however, surveillance has been inadequate, and the true numbers likely were even higher. In 2004, the overall mortality rate in Niger among children aged <5 years was 259 per 1,000 live births. At least 8% of these deaths likely were caused by malaria, and the actual proportion might be as high as 50%. In addition, Niger was one of only 10 countries with poliomyelitis during the first 3 months of 2006, and the risk for polio importation from neighboring Nigeria is high. Routine polio vaccination coverage remains low in Niger; in 2003, coverage with 3 doses of oral poliovirus vaccine (OPV) was 54%. To reduce the prevalence of malaria and bolster polio eradication measures, Niger's Ministry of Health, with support from international partners, launched a nationwide integrated health campaign in 2005. In coordination with a supplemental immunization activity (SIA) distributing OPV, long-lasting insecticide-treated bednets (ITNs) for malaria prevention were provided free of charge to mothers of children aged <5 years. In sub-Saharan Africa, ITNs have reduced all-cause mortality in children aged 1-59 months by 17%. This was the second such national campaign worldwide; the first was conducted in Togo in December 2004. This report describes findings from a survey of Niger's integrated health campaign and highlights differences with the campaign in Togo.
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PMID:Distribution of insecticide-treated bednets during a polio immunization campaign--Niger, 2005. 1692 36

This review covers significant recent developments in the field of travel medicine. New vaccines related to travel are discussed: cholera, Lyme disease, and rotavirus. Pertinent travel vaccine-related issues with varicella, polio, meningitis, Japanese encephalitis, and tick-borne encephalitis are described. New developments in malaria prophylaxis, diagnosis and treatment are discussed. Imported cases of African tick bite fever, arboviruses, African trypanosomiasis, and Helicobacter pylori, and diarrheal illness are reviewed.
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PMID:Travel medicine. 1703 8

Malaria remains a serious cause of morbidity and mortality in millions of individuals each year. The development of widespread resistance of the parasite to drugs as well as resistance of the transmitting mosquito-vector to insecticides in combination with the poor economic situation of many malaria-endemic countries make the development of an effective and inexpensive treatment and prevention a main focus of research. Vaccines remain to be one of the most cost effective and feasible means of disease control and have remarkable success in the control of many infectious disease: eradication of small pox, virtual eradication of polio and the reduction of measles and diphtheria. Next generation vaccines should focus on specific antigens rather than whole inactivated or attenuated pathogens, since the requirements by regulatory authorities concerning safety are becoming more stringent over time. But sub-unit and in particular peptide-based vaccines are poorly immunogenic themselves, and alum represents only a sub-optimal adjuvant for recombinant proteins and synthetic peptides. This emphasizes the need for suitable carrier- and adjuvant systems promoting protective immune responses by delivering protein and peptide antigens in an appropriate conformation. Here, we review the development of a new approach combining peptide-based malaria vaccine candidate antigens with an immune stimulatory carrier-system based on influenza virosomes focusing on the induction of protective antibodies.
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PMID:Optimized Malaria-antigens delivered by immunostimulating reconstituted influenza virosomes. 1713 Dec 41

Despite important success of preventive vaccination in eradication of smallpox and in reduction in incidence of poliomyelitis and measles, infectious diseases remain the principal cause of mortality in the world. Technologies used in the development of vaccines used so far, mostly based on empirical approaches, are limited and insufficient to fight diseases like malaria, acquired immunodeficiency syndrome (AIDS) or adult tuberculosis. Until recently, technologies for making vaccines were based on live attenuated microorganisms, whole killed microorganisms and subunit vaccines such as purified toxoids. Fortunately, the recent advances in the understanding of host-pathogen interaction as well as our increasing knowledge of how immune responses are triggered and regulated have opened almost unlimited possibilities of developing new immunization strategies based on recombinant microorganisms or recombinant polypeptides or bacterial or viral vectors, synthetic peptides, natural or synthetic polysaccharides or plasmid DNA. Thus, considering the expending number of technologies available for making vaccines, it becomes possible for the first time in the history of vaccinology to design vaccines based on a rational approach and leading to increased efficacy and safety.
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PMID:[New technologies for vaccine development]. 1743 28

In the children and adolescents of the Russian Federation, there is an increase in the incidence of a number of nosological entities, a significant prevalence of chronic diseases, and a reduction in health quality in children. According to the statistical data, in the past 5 years, the overall incidence has increased by 16% in children (aged 0-14 years) (171268 per 100,000 children in 2005) by 18% in adolescents. The incidence of diseases of blood and blood-forming organs, anemias, as well diseases of the respiratory, urogenital, and nervous systems, and congenital anomalies continues to increase. Along with socioeconomic causes, this is all due to the negative influence of environmental factors, dietary defects, and, in some cases, poor upbringing and teaching conditions, which do not comply with the hygienic standards and sanitary rules. Under the established conditions, the maintenance and improvement of children's health is the most important state task, the provision of their sanitary and epidemiological welfare being one of the major constituents in its accomplishment. In the past 3 years, the principal state sanitary inspector has issued 17 regulations on different aspects of the sanitary and epidemiological well-being of children and adolescents. The preparation of the draft "National Program for the Prevention of Adverse Health Influence of Environmental Factors for the Sake of the Future of Children and Adolescents for 2007-2010" has been currently completed. The Group of Eight Summit has noted that resolute opposition to threats of infectious diseases, the leading cause of death in the world, is vital to the global development and welfare of mankind. It has adopted the resolution that it is essential to make specific achievements in the strengthening international cooperation in the surveillance and monitoring of infectious diseases; to intensify researches; to second the efforts of appropriate international organizations, which are aimed at effectively opposing the outbreaks of avian influenza, and to prepare for a possible pandemic; to intensify measures against HIV/AIDS, tuberculosis, and malaria; to make the prevention and treatment of infectious diseases more accessible to the population; to avert and eliminate the epidemic consequences of natural disasters and man-caused catastrophes. Moreover, Russia has taken a number of obligations to finance appropriate programs. Of particular importance is the implementation of the Priority National Health Project involving additional immunization of the population and primarily children against viral hepatitis B (VHB), rubella, influenza, and poliomyelitis. This year, 4.1 billion rubles has been allocated within the framework of the priority national project for the purchase of vaccines to immunize 10 million children and adolescents against VHB, 5 million children against rubella, 150 thousand children against poliomyelitis with inactivated vaccine, 22 million individuals, including children going to preschool facilities and lst-4th-form pupils, against influenza. The guidelines for action aimed at providing the sanitary and epidemiological well-being of the population, may include as follows: to further improve the normative and methodical bases; to complete the development of the draft "The Principles in the Policy of State in the Healthy Nutrition of the Russian Federation' Population for 2007-2010", "National Program for the Prevention of Adverse Health Influence of Environmental Factors for the Sake of the Future of Children and Adolescents for 2007-2010" and submit them to the Government of the Russian Federation for approval; to introduce preventive educational programs into the general educational establishments in order to mould in children and adolescents healthy lifestyle habits, a conscientious attitude towards to the health of theirs' and those around them.
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PMID:[Sanitary and epidemiological well-being in children and adolescents: state-of-the-art and ways of solving the problem]. 1772 47

Diploid cells (WI-38, MRC-5) vaccines have their origin in induced abortions. Among these vaccines we fi nd the following: rubella, measles, mumps, rabies, polio, smallpox, hepatitis A, chickenpox, and herpes zoster. Nowadays, other abortion tainted vaccines cultivated on transformed cells (293, PER.C6) are in the pipeline: flu, Respiratory Syncytial and parainfluenza viruses, HIV, West Nile virus, Ebola, Marburg and Lassa, hepatitis B and C, foot and mouth disease, Japanese encephalitis, dengue, tuberculosis, anthrax, plague, tetanus and malaria. The same method is used for the production of monoclonal antibodies and other proteins, gene therapy and genomics. Technology enables us to develop the aforementioned products without resorting to induced abortion. Full disclosure of the cell origin in the labelling of vaccines and other products must be supported. There are vaccines from non-objectionable sources which should be made available to the public. When no alternative vaccines exist, ethical research must be promoted. Non-objectionable sources in the production of monoclonal antibodies, gene therapy and genomics must be encouraged. It is not be consistent to abstain from products originated in embryonic stem cells and at the same time approve of products obtained from induced abortions. It is of paramount importance to avoid that induced abortion technology seeps into every field of Medicine.
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PMID:[Vaccines, biotechnology and their connection with induced abortion]. 1861 Oct 78

Vaccines are among the greatest achievements of modern medicine, leading to the eradication of naturally occurring smallpox, the near elimination of polio and the control of diseases such as rotavirus and hepatitis A and B in industrialized countries. Conventional vaccines, however, protect against a limited number of infectious diseases and, in some cases, provide incomplete protection. Effective vaccines against common infections such as HIV, hepatitis C and malaria remain an unmet medical need. These gaps, together with the threat of resurgence of eradicated diseases, contribute to the growing need for the development of new vaccines and the improvement of existing ones. Approximately 250 scientists and vaccine experts from around the world gathered at Cambridge Healthtech Institute's 3rd Annual Immunotherapeutics and Vaccine Summit (ImVacS 2008) to present the latest developments in this field and to discuss, in 64 presentations, the challenges and current approaches to development and production of novel vaccines.
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PMID:Novel vaccines: bridging research, development and production. 1898 May 35

Studying the remains of mummies obtained by archaeological research may provide key information concerning historical pathocoenosis. Paleopathology makes it possible to recognise, characterise and connect different features involved in human pathocoenosis, such as epidemiology, in a historical perspective, and cultural development, via the introduction of new livestock farming techniques and agriculture in general. Several distinct pathologies may produce direct and indirect changes in the skeleton of affected individuals. Therefore bone remains represent very important sources of information to study such diseases. Changes related to trauma and nutrition deficiency as well as secondary signs, induced by tuberculosis, brucellosis, leprosy, syphilis, malaria, periostitis and aspecific osteomyelitis, persist in bones. In addition, other diseases may cause indirect alterations and subsequent secondary bone in the skeleton via different mechanisms. A secondary bone dimorphism may be induced by poliomyelitis. Aspecific lesions may arise in a skeletal bone and then cause secondary alterations in near-bone segments. Reviewing studies of paleopathologic research found in the literature, we emphasize the relationship between the appearance of major infectious diseases and the development of human activities; whereas it is clear that the introduction of livestock farming had a key role in the pathocoenosis of distinct infections such as tuberculosis, brucellosis and leprosy, some doubts and uncertainty remain in relation to the origin of others with epidemiologically important pathologies, such as syphilis.
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PMID:[Contribution of paleopathology to defining the pathocoenosis of infectious diseases (Part one)]. 1915 92


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