Time of distress should never be an excuse to not follow the mitzvah of our God. As such now in a time of lockdown, being isolated we should still have a Memorial Meal.
In ancient times on market days and the days people where free, they came together to listen to the reading of the Torah. Today any day could be used to come together to listen to the reading of the Holy Scriptures. Written and oral material was brought from one generation into an other and formed the base for the construction of many communities or religious groups and denominations.