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Although it has been widely argued that pre-Enlightenment western medicine ascribed to a one-sex (male) model of the body, this theory has never been evaluated in terms of medical practice. This article seeks to determine the usefulness of such a model for early modern Britain, circa 1600-1740, by examining how medical practitioners responded to three common illnesses that afflicted both male and female patients: venereal disease, smallpox, and malaria. It concludes that, despite a number of similarities, medical treatment of such illnesses was marked by important differences which were based upon the sex of the patient. Due to its unique physiological functions (vaginal discharge, menstruation, pregnancy, and lactation), the female body was considered by practitioners to be capable of manifesting, transmitting, and responding to disease and treatment in ways that the male body could not. This awareness provided practitioners with additional reasons to monitor, and alter, medical treatment in their female patients. In fact, the different constitutions of men and women meant that the patient body was much more complex than the theory of a one-sex model suggests. Furthermore, differences in medical treatment were influenced by age, a variable which was inexorably linked to physiological changes in the 'sexed' body.
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PMID:The medical practice of the sexed body: women, men and disease in Britain , circa 1600-1740. 1598 80

Infectious diseases are the major cause of death worldwide; in developing countries such diseases are responsible for nearly half the burden of premature death and disability. Therefore, the need for the development of new vaccine strategies aimed at preventing or limiting disease is extremely urgent. Important successes have been achieved against some infectious diseases that were once endemic or, even, epidemic (e.g., polio, smallpox, diptheria). Advances in our knowledge of the pathogenesis and immune correlates of protections are needed to develop novel vaccinal approaches to diseases such as hepatitis C, AIDS and malaria. In this review we will analyse the biological problems associated with the prevention of development and/or improvement of vaccine strategies for infectious diseases, focusing on the difficulties facing the creation of new effective vaccines for HIV infection and malaria.
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PMID:Vaccine strategies for infectious diseases. 1599 65

Vaccines have had a tremendous impact on the control of infectious diseases. Not only are vaccines potentially the least expensive mechanism to combat infectious diseases, under optimal conditions, widespread vaccination can result in disease eradication - as in the case of smallpox. Despite this great potential, vaccines have had little impact on human parasitic infections. The reasons for this are many - these eukaryotic pathogens are genetically and biologically complex organisms, some with elaborate life cycles and well-honed immune evasion mechanisms. Additionally, our understanding of the mechanisms of immune control of many parasitic infections -- of what constitutes an effective immune response and of how to induce high-quality immunological memory -- is not fully developed. This review attempts to highlight recent advances that could impact vaccine discovery and development in parasitic infections and proposes areas where future studies may lead to breakthroughs in vaccines for the agents of parasitic diseases. There are several other recent reviews highlighting the results of vaccine trials, specifically in the malaria field.
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PMID:New approaches in vaccine development for parasitic infections. 1615 38

Systemic disease, either genetic or acquired, may prevent or decrease the severity of another disease. These observations have led to important therapeutic advances. The best-known examples are Edward Jenner's use in 1798 of cowpox to prevent smallpox and J.B. Haldane's 1942 observation that erythrocyte disorders such as thalassemia and sickle cell disease modify the severity of malaria. Patients with and carriers of cystic fibrosis may have genetic resistance to tuberculosis and/or secretory diarrhea. The beneficial effects of undernutrition have led to therapeutic diets for seizures, celiac disease, type 2 diabetes, and inflammatory bowel disease. Finasteride for prostatic hypertrophy was developed after the observation that patients with male pseudohermaphrodism resulting from 5-alpha-reductase mutations do not develop prostatic hypertrophy. Rh immunoglobulin for Rh hemolytic disease prevention followed the observation that ABO incompatibility prevented Rh sensitization. The natural immunosuppression of measles may cause remission of nephrosis, and that of leprosy prevents psoriasis. Patients with one form of agammaglobulinemia (X-linked) never get Epstein-Barr virus infection, and patients with another form (common variable) are seemingly cured by HIV infection. HIV/AIDS is prevented or modified by co-receptor mutations (notably the CCRDelta32 chemokine mutation), HIV-2, or GB virus C infection. Additional exploration of these genetic, infectious, and metabolic influences on disease severity may provide new therapeutic approaches to HIV and other diseases.
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PMID:Disease versus disease: how one disease may ameliorate another. 1639 76

Many significant diseases of human civilization are thought to have arisen concurrently with the advent of agriculture in human society. It has been hypothesised that the food produced by farming increased population sizes to allow the maintenance of virulent pathogens, i.e. civilization pathogens, while domestic animals provided sources of disease to humans. To determine the relationship between pathogens in humans and domestic animals, I examined phylogenetic data for several human pathogens that are commonly evolutionarily linked to domestic animals: measles, pertussis, smallpox, tuberculosis, taenid worms, and falciparal malaria. The majority are civilization pathogens, although I have included others whose evolutionary origins have traditionally been ascribed to domestic animals. The strongest evidence for a domestic-animal origin exists for measles and pertussis, although the data do not exclude a non-domestic origin. As for the other pathogens, the evidence currently available makes it difficult to determine if the domestic-origin hypothesis is supported or refuted; in fact, intriguing data for tuberculosis and taenid worms suggests that transmission may occur as easily from humans to domestic animals. These findings do not abrogate the importance of agriculture in disease transmission; rather, if anything, they suggest an alternative, more complex series of effects than previously elucidated. Rather than domestication, the broader force for human pathogen evolution could be ecological change, namely anthropogenic modification of the environment. This is supported by evidence that many current emerging infectious diseases are associated with human modification of the environment. Agriculture may have changed the transmission ecology of pre-existing human pathogens, increased the success of pre-existing pathogen vectors, resulted in novel interactions between humans and wildlife, and, through the domestication of animals, provided a stable conduit for human infection by wildlife diseases.
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PMID:The origin of human pathogens: evaluating the role of agriculture and domestic animals in the evolution of human disease. 1667 5

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

Eradication of smallpox in 1977 in the world was the greatest achievement of the health status of the world population. It is also greatest cost benefit achievement not only in the health control programmes, but also in general economy. This achievement was possible from from two main reasons: (a) because vertical, well organized programmes was implemented and (b) during realization of the program change of strategy was introduced. That change allowed to speed up the efficacy of the epidemiological results (active epidemiological methodology was implemented). The essential contribution of Prof. dr J. Kostrzewski in the eradication programme was leadership of WHO International Commissions in the years 1977-1979 to evaluate eradications status of smallpox in 8 Asian and African countries. This contribution allowed to resume results of eradication of smallpox in the world in December 1979. Failures were observed during realization of control programme of 5 infectious diseases having efficient vaccines and control programme of malaria. It is possible to accept supposition that main reason why it happenes was not sufficient effort to apply (use) vertical initiatives. Prof. J. Kostrzewski was essentially involved during preparation of those programmes to eliminate those 5 communicable diseases buy his health status and the age after 1990 limited his possibility to be engaged directly in the realization to those programmes.
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PMID:[Achievements and failure of WHO during realization of the control programmes of the communicable diseases during twentieth century]. 1770 49

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


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