(
IMDEA Networks Institute) The CoronaSurveys project led by IMDEA Networks' researcher Antonio Fernández Anta was created to "Measure the Iceberg" and was based on the idea that the iceberg has a visible tip - in this case, the number of confirmed cases - but below that tip, submerged and out of sight, is the rest of the block of ice, one of uncertain dimensions, and which can sink any vessel that does not know its real size.