Poland is preparing to file an appeal in early August regarding a dispute over unused COVID-19 vaccines purchased from Pfizer. The appeal concerns a Belgian court ruling that requires Poland to pay penalties for not accepting the full amount of doses originally contracted. The potential financial repercussions for Poland are significant, exceeding 6 billion PLN (approximately 1.4 billion USD). Simultaneously, Polish authorities may request a suspension of the ruling’s enforcement to avoid immediate payment of the fines. The dispute centers around the quantity of vaccines Poland declined to purchase as its vaccination program evolved. The outcome of the appeal will determine whether Poland will be required to cover the substantial costs associated with the unaccepted vaccine supply. This case highlights broader issues surrounding vaccine contracts and flexibility during the pandemic.