Peterson v Merck Sharp & Dohme (Australia) Pty Ltd

The High Court of Australia heard an appeal from the Full Federal Court concerning a dispute between Mr Peterson and Merck Sharp & Dohme (Australia) Pty Ltd. Mr Peterson alleged that he suffered a serious injury as a result of a vaccine manufactured by Merck. The core of the dispute revolved around whether Merck had breached its duty of care to Mr Peterson by failing to warn him of the risks associated with the vaccine.

The High Court was required to determine whether the Full Federal Court had erred in finding that Merck had not breached its duty of care. Specifically, the court considered whether Merck had provided adequate warnings about the potential side effects of the vaccine, and whether any failure to warn constituted a breach of the duty of care owed to Mr Peterson. The central legal question was the scope of the duty of care owed by a pharmaceutical manufacturer to a consumer in relation to the provision of information about a vaccine's risks.

The High Court affirmed the principles governing the duty of care owed by manufacturers of products, particularly pharmaceuticals, to consumers. The court held that the duty of care requires manufacturers to warn of risks that are not obvious or generally known to the consumer, and which are material to the consumer's decision to use the product. In this instance, the court found that the warnings provided by Merck were sufficient, having regard to the available scientific knowledge at the time of the vaccine's administration and the common understanding of potential vaccine side effects. The court concluded that Merck had discharged its duty of care by providing adequate warnings, and therefore, no breach had occurred.