Full AWS Practitioner Certification Question

A national healthcare research institute generates data files related to clinical trials. These files need to be accessed with low latency by hospitals and clinics across the country. Each clinic uses on-premises, file-based software that requires direct access to the data. The research data is stored centrally in an Amazon S3 bucket, and each clinic has read-only access permissions. What is the most effective solution to provide quick and seamless access to this data from each clinic's on-premises environment?