Collate available evidence and provide guidance on whether to delay steroid injections after receiving a vaccine, and whether to delay vaccination if a recent steroid injection has been administered, leaving formal recommendations to various national societies.

中文翻译：

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COVID-19 疫苗和介入程序：探索类固醇给药与后续疫苗功效之间的关系

整理现有证据并就接种疫苗后是否延迟注射类固醇以及如果最近注射了类固醇是否延迟接种提供指导，并向各个国家协会提出正式建议。