Table 2.

Interventions aimed at strengthening work morale.

Intervention	Level of Evidence *	References
Avoiding information blackout.
Purpose. To maintain initiative and transparency in the communication strategy during the crisis period. To reduce the impact of false news, which are frequent during crises. Method. Routinely and systematic reporting of scientific, technical, and organizational developments and updates, justifying procedures changes, reporting results in response to the pandemic, including deaths from SARS-CoV-2. The need to disseminate scientific advancements was emphasized, and news showing the responsiveness of professionals to the pandemic. To achieve a more significant impact, the participation of work team members was highlighted (e.g., to explain the correct use of personal protective equipment, how to report isolation conditions to patients and family members, how to deal with acute stress)	1+	Berrouiguet et al. [31] MacLeod [32] Quinn [33]
Uniformity of criteria
Purpose. To facilitate understanding information in an environment with constant protocol updates and disparate instructions that cause mistrust and undermine work morale. Method. Establishing templates for the messages issued by the centre management that should be based on the “more is less” principle. Communication channels should be uniform and the message format designed to facilitate rapid understanding.	2+	Edworthy et al. [34]

* Scottish Intercollegiate Guidelines Network. Forming guideline recommendations. In: SIGN 50: A guideline developers’ handbook: Edinburgh: SIGN; 2008.