The market opened Wednesday after WHO identified an outbreak linked to illnesses on a Dutch-flagged Atlantic cruise ship carrying 147 passengers and crew.
WHO says public health risk remains low, though more cases are possible; Spain is investigating one suspected case, and six US states are monitoring returning passengers.
A deadly virus now spreads between people. Is this cruise ship outbreak a drill for the next global pandemic?
Millions are bet on a hantavirus pandemic. Are these markets a public health threat or a forecasting tool?
Is this hantavirus outbreak a freak accident, or a sign of what our changing climate has in store?