Actively involved in research activities since the beginning of the pandemic, MedLife Medical System, as industry leader in Romania, conducted a new study, through its own research division, to assess the degree of immunization acquired naturally or following vaccination in Romania, at the urban level. Such research was conducted on a representative sample of 943 people, residents in cities with different characteristics in terms of vaccination rate and infection rate: Bucharest, Cluj, Constanța, Timișoara – Zone 1, and Giurgiu, Suceava and Piatra Neamț – Zone 2, respectively.