aérosol

Covid-19 – Aérosols et gouttelettes: ce qu’il faut savoir

aerosol

google_ad_section_start Les écoliers émettent des aérosols dans leurs salles de classe, les aînés dans leurs résidences, les travailleurs sur leurs lieux de travail. Nous émettons tous des aérosols. Pourquoi le terme est-il devenu si important ces derniers mois ? Photo: CDC Public Health Image Library Pour plusieurs, le mot “aérosol (Un aérosol est un ensemble de particules, solides ou liquides, d’une substance chimique…)” rappelle ces canettes sous pression (La pression est une notion physique fondamentale. On peut la voir comme une force rapportée…) vendues en magasin, qui permettent de vaporiser un liquide (La phase liquide est un état de la… Lire la suite »Covid-19 – Aérosols et gouttelettes: ce qu’il faut savoir

Covid-19 : l’Allemagne investit massivement dans un plan de ventilation et la France serait bien inspirée de l’imiter | Atlantico.fr

Atlantico.fr : Le gouvernement allemand a investi 500 millions d’euros dans l’amélioration des systèmes de ventilation des bâtiments publics, afin d’aider à arrêter la propagation du coronavirus. Sont concernés pour le moment : les bureaux publics, les musées, les théâtres, les universités et les écoles. Les gouttelettes expirées par les personnes infectées resteraient au moins 8 minutes dans l’air d’une pièce. L’objectif est de moderniser les systèmes de climatisation existants. Pourquoi est-ce important de faire cela ? (…) Source: Covid-19 : l’Allemagne investit massivement dans un plan de ventilation et la France serait bien inspirée de l’imiter | Atlantico.fr

Aerosol transmission of Covid-19: A room, a bar and a classroom: how the coronavirus is spread through the air | Society | EL PAÍS in English

The risk of contagion is highest in indoor spaces but can be reduced by applying all available measures to combat infection via aerosols. Here is an overview of the likelihood of infection in three everyday scenarios, based on the safety measures used and the length of exposure Scrolling 1 Six people get together in a private home, one of whom is infected. Some 31% of coronavirus outbreaks recorded in Spain are caused by this kind of gathering, mainly between family and friends. Irrespective of whether safe distances are maintained, if the six people spend four hours together talking loudly, without… Lire la suite »Aerosol transmission of Covid-19: A room, a bar and a classroom: how the coronavirus is spread through the air | Society | EL PAÍS in English

It Is Time to Address Airborne Transmission of Coronavirus Disease 2019 (COVID-19) | Clinical Infectious Diseases | Oxford Academic

We appeal to the medical community and to the relevant national and international bodies to recognize the potential for airborne spread of coronavirus disease 2019 (COVID-19). There is significant potential for inhalation exposure to viruses in microscopic respiratory droplets (microdroplets) at short to medium distances (up to several meters, or room scale), and we are advocating for the use of preventive measures to mitigate this route of airborne transmission. Studies by the signatories and other scientists have demonstrated beyond any reasonable doubt that viruses are released during exhalation, talking, and coughing in microdroplets small enough to remain aloft in air… Lire la suite »It Is Time to Address Airborne Transmission of Coronavirus Disease 2019 (COVID-19) | Clinical Infectious Diseases | Oxford Academic

Covid-19’s wintry mix: Dry indoor air helps the virus spread – STAT

Covid-19’s wintry mix: As we move indoors, dry air will help the coronavirus spread It’s not just the cold, it’s the humidity. Winter in the northern United States will soon drive even the most diehard outdoor diners and backyard socializers indoors, bringing with them heightened risk for contracting and spreading Covid-19. The worry is not just that people might mingle more closely inside, but that the air they breathe will make the virus more dangerous.Cold, dry air facilitates the spread of the coronavirus, and the social distancing that helped outside won’t be as effective indoors, scientists said. “I do worry… Lire la suite »Covid-19’s wintry mix: Dry indoor air helps the virus spread – STAT