What is deadly hantavirus, and how does its human to human transmission occurs? WHO flags suspected cruise ship spread

What is deadly hantavirus, and how does its human to human transmission occurs? The WHO said suspected human to human hantavirus transmission happened among close contacts on a cruise ship near Cape Verde. Several passengers died and others need medical care. Authorities plan evacuations and testing. The public risk remains low because the virus usually spreads through infected rodents. Investigations continue to confirm the strain and trace contacts.