The Sphere Handbook and the Humanitarian Standards Partnership (HSP) initiatives offer guidance on the minimum response all crisis-affected people have the right to expect. They establish what needs to be in place for affected populations to survive and recover with dignity.
A four-page document focusing on applying the Sphere standards in Coronavirus responses (download in English);
An updated version that also includes recommendations based on the Core Humanitarian Standard and other humanitarian standards initiatives (download in English)
These documents can be downloaded in other languages here: https://www.spherestandards.org/coronavirus/#Download