the article is called "Why Pfizer hired 600 employees due to Massive increase in adverse events" published on "The Conejo Guardian". It said "because of massive increase in adverse events linked to the injection... And Pfizer expected more than 1800 additional hires by the end of 2021".
Pfizer needs more researchers to improve their vaccine and other drugs development. It is completely wrong to say it hires people because of "injection adverse events".