Prolonged use and reuse of surgical masks and respirators (with or without reprocessing) should only be considered in situations of critical shortages of protective equipment.
When extended use or reuse is practiced, health care organizations should ensure that policies and systems are in place to ensure that these practices are carried out as safely as possible.
The findings of this review provide the best available evidence regarding three interventions aimed at decreasing the risk of SARS-CoV-2 infection:
Physical spacing: One meter distance is associated with a significant reduction in infection. A distance of two meters may be more effective.
Facemasks: The use of masks offers protection to people against coronavirus (both in healthcare settings and in the general public).
Eye protection: may offer additional benefit in preventing infection.
None ...
Mathematical models suggest that transmission by acute respiratory diseases may be even greater over long distances, in environments with large congregations, such as wagons and subway stations, as well as in corporate areas, where a significant density of people are crowded together. Therefore, it is important to consider not only how often people use public transportation, but also the type of transportation and the areas where transportation starts and ends.
The evidence available to decide what role to assign to remdesivir in the treatment of COVID-19 is of very low certainty. This means that it is not possible to establish whether it is effective, and if it is, the benefit-cost ratio cannot be determined. There are at least 19 ongoing randomized controlled trials evaluating the use of remdesivir in patients with VOC-19, especially in patients who require ventilatory support or are more severe.
We estimate that the range of recommendations that we ...