Biopolítica, máscaras e evidência científica

Sandra Capela*

CDC – Centers for Disease Control and Prevention
«Although mechanistic studies support the potential effect of hand hygiene or face masks, evidence from 14 randomized controlled trials of these measures did not support a substantial effect on transmission of laboratory-confirmed influenza».
Link: https://wwwnc.cdc.gov/eid/article/26/5/19-0994_article

The Centre for Evidence-Based Medicine (CEBM, UNIVERSITY OF OXFORD)
«The increasing polarised and politicised views on whether to wear masks in public during the current COVID-19 crisis hides a bitter truth on the state of contemporary research and the value we pose on clinical evidence to guide our decisions».
Link: https://www.cebm.net/covid-19/masking-lack-of-evidence-with-politics/

BMJ (British Medical Journal)
«This study is the first RCT of cloth masks, and the results caution against the use of cloth masks. This is an important finding to inform occupational health and safety. Moisture retention, reuse of cloth masks and poor filtration may result in increased risk of infection. Further research is needed to inform the widespread use of cloth masks globally. However, as a precautionary measure, cloth masks should not be recommended for HCWs, particularly in high-risk situations, and guidelines need to be updated».
Link: https://bmjopen.bmj.com/content/5/4/e006577