There is a big increase for Belarus between 4/1/20 and 4/14/20. According to https://en.wikipedia.org/wiki/COVID-19_pandemic_in_Belarus the first reported case was Feb 28, the first death was Mar 31st. r On Apr4 Apr 4 the spring vacation for schools was extended for a week (it was later extended on Apr 10 for another week). Maybe the school spring vacation corresponds to the increase in IPDV between 4/1/20 and 4/16/20. Following 4/1`6/20 it appears the IPDV drops below previous levels going back to 1/20/20.
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