A erradicação da varíola humana (mpox em inglês) foi certificada em 1980. A varíola símia (mpox em inglês) é endêmica nos países da África Central e Ocidental desde a sua primeira detecção, em 1958. Trata-se de uma zoonose cujos casos geralmente ocorrem perto de florestas tropicais, ond...e diversos animais são portadores do ortopoxvírus causador da doença. A maioria das infecções em seres humanos pelo vírus da varíola símia em países onde a doença é endêmica é resultado de transmissão primária de animais para humanos. A transmissão de pessoa a pessoa pode ocorrer por meio de contato próximo com secreções respiratórias ou lesões cutâneas de uma pessoa infectada ou com objetos recém-contaminados. A transmissão também pode ocorrer através da placenta da mãe para o feto ou por contato direto durante ou após o parto. Até 21 de maio de 2022, 12 países onde não há varíola símia endêmica, em 2 regiões da Organização Mundial da Saúde (OMS), haviam notificado 92 casos confirmados da doença. Até 26 de agosto de 2022, 96 países sem endemicidade, de todas as 6 regiões da OMS, haviam notificado 45.198 casos confirmados de varíola símia, incluindo 6 óbitos. No mesmo período, os países onde a doença é endêmica notificaram 350 casos confirmados e 6 óbitos. Na Região das Américas, 29 países e territórios notificaram 23.479 (48%) casos confirmados e 3 óbitos. Diversos estudos observacionais sobre as vacinas de primeira geração demonstraram que a eficácia da vacinação contra a varíola humana na prevenção da varíola símia é de aproximadamente 85%. Atualmente, as vacinas originais (de primeira geração) contra a varíola humana não estão mais disponíveis.
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El 23 de julio del 2022, el Director General de la OMS declaró el brote de viruela símica una emergencia de salud pública de importancia internacional. A raíz de esa declaración, se puso en marcha un dispositivo de respuesta coordinada con el objeto de interrumpir la transmisión y proteger a l...os grupos en situación de vulnerabilidad. En estas orientaciones se tratan diferentes aspectos relativos al uso de vacunas para respaldar las intervenciones primarias de salud púbica en la respuesta para detener la trasmisión de persona a persona. Tienen como propósito brindar información útil y accesible acerca de las vacunas contra la viruela símica a fin de facilitar el despliegue de estrategias de prevención adaptadas a la situación epidemiológica, con base en las recomendaciones de la VIII Reunión ad hoc del Grupo Técnico Asesor de la OPS sobre Enfermedades Prevenibles por Vacunación.
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Smallpox eradication was certified in 1980. Mpox has been endemic in Central and West African countries since it was first detected in 1958 . It is a zoonosis; cases are often found close to tropical rainforests where various animals carry the orthopoxvirus that causes the disease. In endemic countr...ies, most mpox infections in humans result from a primary animal-to-human transmission. Human-to-human transmission can result from close contact with respiratory secretions, skin lesions of an infected person, or recently contaminated objects. Transmission can also occur via the placenta from mother to fetus or through close contact during and after birth.
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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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WHO has published the first-ever guidance on the clinical management of diphtheria. The only previously available guidance was an operational protocol. The new guidance followed the rigorous process for developing guidance at WHO.
It addresses the use of Diphtheria Antitoxin (DAT) in the treatmen...t of diphtheria. There is a worldwide shortage of DAT and evidence based recommendations on the use of DAT were requested by many Member States.
The guidance also includes new recommendations on antibiotics. In patients with suspected or confirmed diphtheria, WHO recommends using macrolide antibiotics (azithromycin, erythromycin) rather than penicillin antibiotics.
This clinical practice guideline has been rapidly developed recognizing the global increase in diphtheria outbreaks. Outbreaks of diphtheria in Nigeria, Guinea and neighbouring countries in 2023 have highlighted the urgent need for evidence-based clinical practice guidelines for the treatment of diphtheria. Given the sporadic nature of outbreaks, many clinicians in the affected regions have never managed acute diphtheria and its related complications. Diphtheria remains a neglected disease and vaccination is the top priority. At the same time, for patients with diphtheria, access to antibiotics, DAT and supportive care can be lifesaving.
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World Health Organization. Regional Office for South-East Asia.
World Health Organization. Regional Office for South-East Asia
This position paper on polio vaccines replaces the 2016 WHO position paper, and summarizes recent developments in the field.
28 Dec 2020. acualizada 28 de enero 2021 Las presentes orientaciones tienen como objetivo principal facilitar a los equipos de salud herramientas que sirvan de apoyo para la comunicación efectiva entre el personal de salud y la población general, con miras a lograr el objetivo de fortalecer, mant...ener o recuperar la confianza en las vacunas y en los programas de inmunización en la Región de las Américas.
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1 marco 2021. As orientações deste documento visam, principalmente, equipar o pessoal da saúde com ferramentas que lhes permitam aumentar a eficiência da comunicação com a população geral e aumentar, manter ou recuperar a confiança do público nas vacinas e nos programa de imunização na R...egião das Américas.
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Here you can download different videos: Temperature monitoring; Cold chain; vaccine stock; maintenance; etc.
Guidance for addressing a global infodemic and fostering demand for immunization
December 2020
Misinformation threatens the success of vaccination programs across the world. This guide aims to help organizations to address the global infodemic through the development of strategic and well-coordina...ted national action plans to rapidly counter vaccine misinformation and build demand for vaccination that are informed by social listening.
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Orientations pour faire face à une infodémie mondiale et favoriser la demande de vaccination
Décembre 2020
La désinformation menace le succès des programmes de vaccination dans le monde entier. Ce guide vise à aider les organisations à faire face à l'infodémie mondiale par l'élaboration ...de plans d'action nationaux stratégiques et bien coordonnés pour contrer rapidement la désinformation sur les vaccins et créer une demande de vaccination qui soit fondée sur l'écoute sociale.
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The PQS on-line catalogue includes details of all immunization-related products currently pre-qualified by WHO for procurement by United Nations agencies. The catalogue is produced and maintained by the Quality, Safety and Standards group in the Immunization, Vaccine and Biologicals Department of WH...O, Geneva. It replaces the old WHO/UNICEF Product Information Sheets (PIS), the last edition of which was published in 2000. Only products included in the PQS catalogue are now recommended to be purchased by UN agencies.
Large File: 120 MB
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28 Dec 2020. The main objective of these guidelines is to provide tools for staff working in the field of immunization to support effective communication between health personnel and the general population, with the aim of strengthening, maintaining or recovering trust in vaccines and the immunizati...on programs in the Region of the Americas.
Available in English, Spanish and Portuguese
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Creating Videos to train health workers and serve communities.
Global Health Media Project designs and develops videos that are tailored to the needs of health workers and populations in low-resource settings. Internet and mobile technology give us the power to reach large numbers, cost-effectively... and across vast distances, resulting in significant impact at minimal cost per patient.
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