Terminology used to describe the transmission of pathogens through the air varies across scientific disciplines, organizations and the general public. While this has been the case for decades, during the coronavirus disease (COVID-19) pandemic, the terms ‘airborne’, ‘airborne transmission’ a...nd ‘aerosol transmission’ were used in different ways by stakeholders in different scientific disciplines, which may have contributed to misleading information and confusion about how pathogens are transmitted in human populations.
This global technical consultation report brings together viewpoints from experts spanning a range of disciplines with the key objective of seeking consensus regarding the terminology used to describe the transmission of pathogens through the air that can potentially cause infection in humans.
This consultation aimed to identify terminology that could be understood and accepted by different technical disciplines. The agreed process was to develop a consensus document that could be endorsed by global agencies and entities. Despite the complex discussions and challenges, significant progress was made during the consultation process, particularly the consensus on a set of descriptors to describe how pathogens are transmitted through the air and the related modes of transmission. WHO recognizes the important areas where consensus was not achieved and will continue to address these areas in follow-up consultations.
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4th edition
The WHO Laboratory Biosafety Manual (LBM) has been in broad use at all levels of clinical and public health laboratories, and other biomedical sectors globally, serving as a de facto global standard that presents best practices and sets trends in biosafety.
LBM encouraged countries t...o accept and implement basic concepts in biological safety and to develop national codes of practice for the safe handling of biological agents in laboratories within their geographical borders.
This fourth edition of the manual builds on the risk assessment framework introduced in the third edition. A thorough, evidence-based and transparent assessment of the risks allows safety measures to be balanced with the actual risk of working with biological agents on a case-by-case basis.
This novel evidence- and risk-based approach will allow optimised resource use and sustainable laboratory biosafety and biosecurity policies and practices that are relevant to their individual circumstances and priorities, enabling equitable access to clinical and public health laboratory tests and biomedical research opportunities without compromising safety.
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MMWR Morbidity and Mortality Weekly Report December 19, 2014 / 63(50);1205-1206
Médicaments et dispositifs médicaux pour une population de
10 000 personnes pendant environ 3 mois
Practices, challenges and the future implications for all stakeholders
La meningitis es una enfermedad mortal y debilitante; golpea rápidamente, conlleva graves consecuencias sanitarias, económicas y sociales, y afecta a personas de todas las edades y en todos los países del mundo. La meningitis bacteriana puede provocar epidemias, ocasionar la muerte en 24 horas y ...dejar a una de cada cinco personas afectadas, con discapacidad permanente después de la infección. Muchos casos de meningitis y defunciones conexas son prevenibles mediante vacunación, pero los progresos para derrotar a la meningitis están rezagados respecto de otras enfermedades prevenibles mediante vacunación.
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