The search results provided do not contain information about AI agents or agentic AI in healthcare during the specified timeframe. To fulfill your request for a healthcare news digest specifically focused on AI agents and agentic AI technologies, different search results would be necessary.

The current search results primarily cover traditional healthcare topics and developments. These include pharmaceutical research outcomes, international health policy initiatives, and healthcare infrastructure updates. While these represent important healthcare news, they do not address the specific topic of artificial intelligence agents or agentic AI systems that you requested.

Agentic AI refers to autonomous artificial intelligence systems that can perceive their environment, make decisions, and take actions to achieve specific goals with minimal human intervention. In healthcare contexts, such systems could include diagnostic AI agents, treatment recommendation systems, hospital management automation, or clinical decision-support tools. However, none of the provided search results discuss such applications or developments.

To create the comprehensive markdown news digest you requested with proper citations and accurate information, I would need search results that specifically cover: AI agent implementations in healthcare settings, agentic AI research developments, machine learning agent breakthroughs in medical applications, or healthcare AI deployments announced during late April and early May 2026.

Without source material directly addressing these topics, providing a digest would require me to invent information not supported by the search results, which would violate the accuracy standards required for this task.