Earlier today I spoke with the doctor on the ship and he confirmed something. CDC messaging continues to say "prolonged, close contact" but that contradicts: 1) what's in the literature, and 2) what's happening on this ship.
--> the doc told me a few who got infected/died DID have direct contact w/ very sick patient while treating them, but 3 who tested positive did NOT have direct physical or close contact - only shared time in a few spaces on the ship where people congregate (dining, lecture area)
Important details about the level of contact on the ship between sick cases and exposed cases. Seems not everyone who got infected had extended close contact. See tweet below #Hantavirus
Again, as long as all exposed returned travelers are in quarantine we should not have any onward spread. But quarantine must be done correctly with monitoring. You don’t take chances on this.