Este documento ha sido concebido para proporcionar un marco que respalde los estudios de prevalencia de las ITS en los niveles local y nacional. El propósito de estos estudios es conocer la carga de las infecciones por NG y CT, dos ITS prioritarias que dan lugar a resultados obstétricos y perinata...les adversos.
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This series highlights current challenges to the management of Neisseria gonorrhoeae, Chlamydia trachomatis, Mycoplasma genitalium, non-gonococcal urethris, bacterial vaginosis, syphilis and Trichomonas vaginalis. We have assembled a collection of state-of-the-art reviews that capture the latest evi...dence and opinions on where future treatment efforts should be placed.
BMC Infectious Diseases
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This document updates the 2009 ECDC guidance on chlamydia control in Europe. It was developed by a technical expert group which conducted a critical review of the scientific evidence on the epidemiology of chlamydia and the effectiveness of screening programmes.
The aim of this guidance is to suppo...rt Member States to develop, implement or improve strategies for chlamydia control. This guidance describes the current evidence base behind the proposed options, highlights key gaps in knowledge, and suggests effective options for national chlamydia control strategies. It is directed primarily at policy advisors but should also be useful for programme managers and experts in sexual health.
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Las infecciones de transmisión sexual (ITS) constituyen un importante problema de salud pública en todo el mundo, que afecta a la calidad de vida y se acompaña de importantes niveles de morbilidad y mortalidad. Estas infecciones influyen directamente en la salud infantil y reproductiva porque tra...en consigo infertilidad, cánceres y complicaciones del embarazo. También tienen una influencia indirecta porque facilitan la transmisión por vía sexual del virus de la inmunodeficiencia humana (VIH), pesando así igualmente en la economía de los países y las personas. Cada día, más de un millón de personas contraen una infección de transmisión sexual. Se calcula que en 2012 hubo en el mundo 357 millones de nuevos casos de ITS curables (blenorragia, clamidiasis, sífilis o tricomoniasis) que afectaron a adultos de entre 15 y 49 años de edad, entre ellos 5,6 millones de casos de sífilis. El número de casos prevalentes de sífilis asciende, según las estimaciones, a unos 18 millones.
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Trachoma is the leading infectious cause of blindness (2). It is characterized by repeated
conjunctival infection with particular strains of Chlamydia trachomatis. This scars the conjunctivae and,
in some cases, leads to trichiasis with or without entropion. The abrasive action of eyelashes can
d...amage the cornea. In 2018, trachoma affected the poorest residents of the poorest communities of 43
countries
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Countries, partners, and donors are committed to
the global elimination of blinding trachoma by 2020.
Achieving this public health milestone requires more
than funding; it requires health personnel with the
right mix of skills, and well supported and managed
health systems. Mass drug administra...tion (MDA)
with Zithromax®, the Pfizer, Inc. donated antibiotic,
is a key component of the SAFE strategy, endorsed
by the World Health Organization. There is growing
recognition that improving all aspects of MDA, from
planning to training, recording to reporting, and
receipt of drug to distribution (the supply chain), will
be necessary if MDA programmes are going to reduce
the community burden of Chlamydia trachomatis, and
eliminate trachoma as a cause of blindness by 2020.
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Trachoma is one of the 17 WHO-defined Neglected Tropical Diseases
(NTDs) that affect over 1 billion of the world’s poorest and most
marginalized people. It is caused by the bacterium chlamydia trachomatis.
Trachoma is an eye infection affecting both eyes. It is the world’s leading cause of infectious blindness. A bacterium called Chlamydia trachomatis causes trachoma. According to the World Health Organization (WHO), trachoma has caused the visual impairment of 1.8 million people. Of those people, 4...50,000 are irreversibly blind.
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Trachoma causes more vision loss and blindness than any other infection in the world. This disease is caused by Chlamydia trachomatis bacteria. Other variants or strains of these bacteria can cause a sexually transmitted infection (chlamydia) and disease in lymph nodes.
This is photomicrograph ...of a conjunctival smear that revealed the presence of what are known as, intracytoplasmic inclusions Trachoma is easily spread through direct personal contact such as from fingers, through shared towels and clothes, and through flies that have been in contact with the eyes or nose of an infected person. When left untreated, repeated Chlamydia trachomatis infections in the eye can cause severe scarring on the inside of the eyelid. This can cause the eyelashes to scratch the cornea (trichiasis). In addition to causing pain, trichiasis permanently damages the cornea and can lead to irreversible blindness.
Chlamydia trachomatis infections spread in areas that lack access to safely managed drinking water and sanitation systems. Trachoma affects the most resource-limited communities in the world. Globally, almost 1.9 million people have vision loss because of trachoma, and it causes 1.4% of all blindness worldwide.1 In 2021, 136 million people lived in trachoma-endemic areas and were at risk of trachoma blindness.
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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 is the leading infectious cause of blindness worldwide. It is caused by an obligate intracellular bacterium called Chlamydia trachomatis. The infection is transmitted by direct or indirect transfer of eye and nose discharges of infected people, particularly young children who harbour the pr...incipal reservoir of infection. These discharges can be spread by particular species of flies.
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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.
Trachoma, caused by particular serovars of Chlamydia trachomatis, is the leading
infectious cause of blindness. Infection is transmitted within ocular and nasal secretions that are passed from person to person on fingers, fomites (such as clothing) and eye-seeking flies (particularly Musca sorbens)....
Ophthalmic infection is associated with an inflammatory conjunctivitis known as “active trachoma”. Repeated episodes of active trachoma can scar the eyelids. In some individuals this leads to trachomatous trichiasis (TT), in which one or more eyelashes on the upper
eyelid touch the eye. TT is extremely painful. It can be corrected surgically, but, if left untreated, may lead to corneal opacification, resulting in vision impairment and blindness.
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The Fifty-first World Health Assembly adopted resolution WHA51.11 in 1998, which targets the
global elimination of trachoma as a public health problem by 2020 (1). The strategy recommended
to achieve that goal is encapsulated by the acronym “SAFE”, which represents: Surgery for
individuals wi...th trachomatous trichiasis (TT; the late blinding stage of trachoma); and Antibiotics,
Facial cleanliness and Environmental improvement (2). The A, F and E interventions are delivered to
entire districts in which active (inflammatory) trachoma is common in order to treat ocular infection
with Chlamydia trachomatis, the causative organism of trachoma, and sustainably reduce its
transmission.
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En 1998, la Cinquante-et-Unième Assemblée mondiale de la Santé a adopté la résolution
WHA51.11 qui vise l’élimination mondiale du trachome en tant que problème de santé publique
à l’horizon 2020 (1). La stratégie recommandée pour atteindre cet objectif est récapitulée dans
le sig...le « CHANCE » qui signifie CHirurgie pour les personnes atteintes de trichiasis
trachomateux (TT – le dernier stade cécitant du trachome) ; Antibiothérapie, Nettoyage du
visage et Changements Environnementaux (2). Les interventions relatives aux volets A, N et CE
sont menées dans des districts entiers dans lesquels les cas de trachome évolutif
(inflammatoire) sont courants, dans le but de traiter les infections oculaires dues à Chlamydia
trachomatis, l’agent pathogène à l’origine du trachome, et de réduire durablement sa
transmission.
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La quincuagésima primera Asamblea de la Salud Mundial aprobó la resolución WHA51.11 en
1998, que busca la eliminación mundial del tracoma como problema de salud pública para el 2020
(1). La estrategia recomendada para lograr ese objetivo está encapsulada por las siglas "SAFE", que
represent...a: La cirugía para los individuos con triquiasis tracomatosa (TT; la última etapa que causa
ceguera por tracoma); y Antibióticos, Limpieza Facial y Mejoramiento ambiental (2). Las
intervenciones A, F y E se llevan a distritos enteros en los que el tracoma activo (inflamatorio) es
común para tratar la infección ocular causada por Chlamydia trachomatis, el agente causal del
tracoma y reduce de manera sustentable su transmisión.
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Despite the development of point-of-care diagnostic tests for syphilis, chlamydia, gonorrhoea, and trichomoniasis, none comply with all WHO criteria. This analysis overviews landscape analyses of point-of-care diagnostic technologies for Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vagi...nalis and syphilis, available and in the pipeline. The target audience for the target product profiles is broad and includes clinicians, researchers working on diagnostics, laboratory experts, including, microbiologists and virologists, public health experts, epidemiologists, developers, and representatives for manufactures, including biotech engineers, policy-and decision-makers as well as representatives from regulatory bodies and agencies, donor agencies and international organizations.
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