COVID-19
COVID-19 vaccines

Anton (22 years old)

22-year-old Anton was a strong sceptic of vaccines for COVID-19 but has changed his mind because of coercion from his family. He received his first dose of vaccine (mRNA-based, Pfizer) 5 days ago.

His family calls you with great concerns about symptoms that he developed today: chest pain, tachycardia and breathlessness.

What is the most likely cause of these symptoms in this patient?