Ключевые слова: american vaccine, biotechnology, clinic, corona vaccine, coronavirus, covid19, disease, drug, effective, epidemic, eu, europe, european union, flag, government, illness, immunization, infection, injection, injection needle, mass vaccination, medical, medicine, order, pandemic, pfizer, pfizer vaccine, rollout, safe, sarscov2, treatment, trial, vaccination, vaccination dose, vaccine, vial, virus,