the article was written in April. The blood clot issue didn’t occur until March. Other issue around efficacy were present earlier.
Sweden suspended AZ use in March due the number of clotting events, which had been steadily occurring since start of use in December 2020, and had occurred in trials. At the same time advice from other European countries changed to restrict its use to over 65. The drama around the clotting and TTS had been going on since the drugs introduction in late 2020.