What is the fine-grained topic of the following text: The National Academies of Science, Engineering and Medicine (NASEM) Forum on Microbial Threats has released a new summary of its most recent workshop exploring the dynamic relationships among host, pathogens, vectors, and ecosystems that characterize vector-borne diseases. Only return the topic.
NASEM Forum on Microbial Threats' workshop summary on vector-borne diseases.