WHO today published the new edition of its Model Lists of Essential Medicines and Essential Medicines for Children, which include new treatments for various cancers, insulin analogues and new oral medicines for diabetes, new medicines to assist people who want to stop smoking, and new antimicrobials... to treat serious bacterial and fungal infections.
The listings aim to address global health priorities, identifying the medicines that provide the greatest benefits, and which should be available and affordable for all. However, high prices for both new, patented medicines and older medicines, like insulin, continue to keep some essential medicines out of reach for many patients.
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Antimicrobial resistance (AMR) is one of the world’s top 10 public health threats. The World Health Organization (WHO) in the African Region, using the Antimicrobial Stewardship assessment tool, has assessed Member States progress on strengthening national capacity need for effective implementatio...n of antimicrobial stewardship interventions to mitigate the threat posed by AMR. The African Region bears the bulk of the global burden of AMR, which drives up health care costs and the increases the economic burden on families and societies. Ultimately, this puts the achievements of modern medicine at risk when infections can no longer be treated with first-line antibiotics. In 2019, the deaths associated with and those directly attributable to bacterial resistance were estimated around 4.95 million and 1.27 million respectively. Left unchecked, deaths from drug resistant infections will surpass the predicted annual death toll of 10 million by 2050.
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Antibiotics are among the most frequently prescribed classes of drugs and it is estimated that approximately 50% of antibiotic use, in both the outpatient and inpatient settings, is inappropriate. At the same time, in contrast to any other class of drugs, every antibiotic use has a potential public ...health consequence – inappropriate use may not harm only the individual patient, but contributes to societal harm by exerting an unnecessary selective pressure that may lead to antibiotic resistance among bacteria. This video based course will introduce learners to the basic principles of appropriate antibiotic use, demonstrate how to apply these principles to the management of common infections, and outline how to develop and maintain an antimicrobial stewardship program. We will offer a number of illustrative cases, recognizable to the practicing physician in his or her practice to engage learners in the thought processes that lead to optimal decision making, improved outcomes of individual patients, and harm reduction vis-a-vis the bacterial ecology.
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A role for nuclear techniques
Antimicrobials play a critical role in the treatment of human and animal (aquatic and terrestrial) diseases, which has led to their widespread application and use. Antimicrobial resistance (AMR) is the ability of microorganisms to stop an antibiotic, such as an antimic...robial, antiviral or antimalarial, from working against them. Globally, about 700 000 deaths per year arise from resistant infections as a result of the fact that antimicrobial drugs have become less effective at killing resistant pathogens. Antimicrobial chemicals that are present in environmental compartments can trigger the development of AMR. These chemicals can also cause antibiotic-resistant bacteria (ARB) to further spread antibiotic resistance genes (ARG) because they may have an evolutionary advantage over non-resistant bacteria.
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The global emergence of antimicrobial resistance (AMR) is posing a threat to human health. Putting resources into the containment of AMR – including surveillance – is one of the highest-yield investments a country can make to mitigate its impact. In 2015, WHO launched the Global Antimicrobial Re...sistance Surveillance System (GLASS), the first global collaborative effort to foster AMR surveillance in bacteria causing acute infections. As of December 2018, 71 countries are enrolled in GLASS. The aim of this report is to document participation efforts and outcomes across these countries, and highlight differences and constraints identified to date. This report follows on from the first GLASS Report – Early implementation 2016-17, published in January 2018, and drawing on data from GLASS first data call in 2017.
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The escalating antimicrobial resistance (AMR) pandemic is a global public health threat with extensive health, economic and societal implications. Resistance emerges because of selection pressure from rational and indiscriminate antimicrobial use in human health as well as in the veterinary, agricul...ture and environmental sectors. Infections caused by resistant bacteria result in longer duration of illness, higher mortality rates and increased costs associated with alternative treatment. AMR further constrains procedures that rely on antimicrobial prophylaxis, and AMR is recognized as a threat to theworld economy.
Journal of Public Health | Vol. 39, No. 1, pp. 8–13 | doi:10.1093/pubmed/fdw015 | Advance Access Publication March 3 2016
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This course will offer a practical approach to prescribing antibiotic therapy and development of antimicrobial stewardship across all specialties and settings. Antibiotics are among the most frequently prescribed classes of drugs and it is estimated that approximately 50% of antibiotic use, in both... the outpatient and inpatient settings, is inappropriate. At the same time, in contrast to any other class of drugs, every antibiotic use has a potential public health consequence – inappropriate use may not harm only the individual patient, but contributes to societal harm by exerting an unnecessary selective pressure that may lead to antibiotic resistance among bacteria. This video based course will introduce learners to the basic principles of appropriate antibiotic use, demonstrate how to apply these principles to the management of common infections, and outline how to develop and maintain an antimicrobial stewardship program.
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The increasing global trend of Antimicrobial resistance (AMR) has gradually emerged as a major public health challenge for the entire world. AMR has spread to almost all countries and regions, including Pakistan owing to the “misuse and overuse” of Antimicrobials, contributing to the increasing ...burden of infections due to resistant bacteria, viruses, parasites and fungi, while limiting the treatment options for managing such infections.
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Diphtheria is caused by Corynebacterium species, mostly by toxin-producing Corynebacterium diphtheriae and rarely by toxin-producing strains of C. ulcerans and C. pseudotuberculosis. The most common type of diphtheria is classic respiratory diphtheria, whereby the exotoxin produced characteristicall...y causes the formation of a pseudomembrane in the upper respiratory tract and damages other organs, usually the myocardium and peripheral nerves. Acute respiratory obstruction, acute systemic toxicity, myocarditis and neurologic complications are the usual causes of death. The infection can also affect the skin (cutaneous diphtheria). More rarely, it can affect mucous membranes at other non-respiratory sites, such as genitalia and conjunctiva.
C. diphtheriae is transmitted from person to person by intimate respiratory and direct contact; in contrast, C. ulcerans and C. pseudotuberculosis are zoonotic infections, not transmitted person-to-person. The incubation period of C. diphtheriae is two to five days (range 1– 10 days). A person is infectious as long as virulent bacteria are present in respiratory secretions, usually two weeks without antibiotics, and seldom more than six weeks. In rare cases, chronic carriers may shed organisms for six months or more. Skin lesions are often chronic and infectious for longer periods. Effective antibiotic therapy (penicillin or erythromycin) promptly terminates shedding in about one or two days.
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This review focusses on the interactions between the etiologic agent of Chagas disease, Trypanosoma cruzi, and its triatomine vector. The flagellate mainly colonizes the intestinal tract of the insect. The effect of triatomines on trypanosomes is indicated by susceptibility and refractoriness phenom...ena that vary according to the combination of the strains. Other effects are apparent in the different regions of the gut. In the stomach, the majority of ingested blood trypomastigotes are killed while the remaining transform to round stages. In the small intestine, these develop into epimastigotes, the main replicative stage. In the rectum, the population density is the highest and is where the infectious stage develops, the metacyclic trypomastigote. In all regions of the gut, starvation and feeding of the triatomine affect T. cruzi. In the small intestine and rectum, starvation reduces the population density and more spheromastigotes develop. In the rectum, feeding after short-term starvation induces metacyclogenesis and after long-term starvation the development of specific cells, containing several nuclei, kinetoplasts and flagella. When considering the effects of T. cruzi on triatomines, the flagellate seems to be of low pathogenicity. However, during stressful periods, which are normal in natural populations, effects occur often on the behaviour, eg, in readiness to approach the host, the period of time before defecation, dispersal and aggregation. In nymphs, the duration of the different instars and the mortality rates increase, but this seems to be induced by repeated infections or blood quality by the feeding on infected hosts. Starvation resistance is often reduced by infection. Longevity and reproduction of adults is reduced, but only after infection with some strains of T. cruzi. Only components of the surface coat of blood trypomastigotes induce an immune reaction. However, this seems to act against gut bacteria and favours the development of T. cruzi.
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The World Health Organization was requested by Member States to develop a global priority pathogens list (global PPL) of antibiotic-resistant bacteria to help in prioritizing the research and development (R&D) of new and effective antibiotic treatments. To date, the selection of pathogens for R&D ac...tivities has been largely guided by small and large pharmaceutical companies according to a variety of parameters, such as perceived/unmet medical need, pressure of investors, market size, scientific discovery potential, and availability of specific technologies. Previous PPLs, issued by the Centers for Disease Control and Prevention.
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WHO/UNICEF joint statement
Le pian fait partie d’un groupe d’infections bactériennes chroniques que l’on désigne couramment par le terme « tréponématoses endémiques ». Ces maladies sont dues à des bactéries spiralées appartenant au genre Treponema, qui comprend aussi la syphilis endémique (béjel) et la pinta.... Le pian est la plus courante de ces trois infections.
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Yaws is a non-venereal endemic treponemal infection caused by Treponema pallidum sub-species pertenue, a bacterium closely related to Treponema pallidum ssp. pallidum, the agent of venereal syphilis. Yaws predominantly affects children living in tropical regions of the world. It causes lesions of th...e skin, mucous membranes and bones which, without treatment, can become chronic and destructive. There is no widely available test to distinguish yaws from syphilis. Thus, migration of people from yaws-endemic areas to developed countries may present clinicians with diagnostic dilemmas. The other endemic treponemal infections are bejel (endemic syphilis) caused by Treponema pallidum ssp. endemicum and pinta caused by Treponema carateum.
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Trachoma is one of oldest infectious diseases known to humans. It is caused by the bacteria Chlamydia trachomatis, which is transmitted through contact with eye secretions of infected people (shared use of towels and handkerchiefs, contact with fingers, etc.), as well by flies that help spread it.
Trachoma disease
Trachoma is a sequela following infection by the bacterium Chlamydia trachomatis (C. trachomatis). The disease is preventable, but still the cause of blindness in 1.9 million people world wide.
Mycetoma is a chronic, progressively destructive morbid inflammatory disease usually of the foot but any part of the body can be affected. Infection is most probably acquired by traumatic inoculation of certain fungi or bacteria into the subcutaneous tissue. Mycetoma was described in the modern l...iterature in 1694 but was first reported in the mid-19th century in the Indian town of Madura, and hence was initially called Madura foot.
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a dernière mise à jour a été effectuée dans le livret de la PCIME en 2014, mais depuis lors, des mises à jour importantes ont été effectuées sur la prise en charge du jeune nourrisson malade (MJN) âgé de moins de 2 mois. Cette mise à jour 2019 de la section sur le jeune enfant malade Pri...se en charge du jeune enfant malade âgé de moins de 2 mois : IMCI chart booklet. remplace le IMCI chart booklet de 2014. Les nouvelles mises à jour reflètent les récentes lignes directrices sur la prise en charge des infections bactériennes graves possibles (IPSP) chez les jeunes nourrissons lorsque l'orientation vers un spécialiste n'est pas possible, publiées en 2015. Elles comprennent l'évaluation, la classification et l'orientation de la SYI avec PSBI ; et le traitement ambulatoire de la SYI avec infection locale ou respiration rapide (pneumonie) chez les nourrissons âgés de 7 à 59 jours. Les autres mises à jour comprennent : une nouvelle section sur la manière de réévaluer, de classer et de traiter la SYI avec PSBI lorsque l'orientation n'est pas possible dans les établissements de santé ambulatoires par des agents de santé formés à la PCIME ; des changements dans l'évaluation et la prise en charge des jeunes nourrissons pour l'infection par le VIH ; et l'identification des nourrissons de moins de 7 jours de qui ont besoin de soins kangourou.
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Current evidence indicates that the COVID-19 virus is transmitted through respiratory droplets or contact. Contact transmission occurs when contaminated hands touch the mucosa of the mouth, nose, or eyes; the virus can also be transferred from one surface to another by contaminated hands, which fac...ilitates indirect contact transmission. Consequently, hand hygiene is extremely important to prevent the spread of the COVID-19 virus. It also interrupts transmission of other viruses and bacteria causing common colds, flu and pneumonia, thus reducing the general burden of disease.
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