- pregnant women; - history of severe allergic reaction (anaphylaxis) to any previously administered vaccine; - having received another vaccine in the last 14 days; - belonging to a priority risk group for vaccination, as per the pni recommendations; - have fever or flu-like symptoms; - have previously received any vaccine for covid-19 at any time; - recent diagnosis of covid-19 with onset of symptoms 28 days before vaccination; - disorders of coagulation and use of anticoagulants.

- pregnant women; - history of severe allergic reaction (anaphylaxis) to any previously administered vaccine; - having received another vaccine in the last 14 days; - belonging to a priority risk group for vaccination, as per the pni recommendations; - have fever or flu-like symptoms; - have previously received any vaccine for covid-19 at any time; - recent diagnosis of covid-19 with onset of symptoms 28 days before vaccination; - disorders of coagulation and use of anticoagulants.