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WHO revises hantavirus cases lower after US passenger tests negative

World Health Organization officials said that on Friday, the U.S. confirmed an individual who had a?inconclusive test was later confirmed to be?negative for hantavirus.?This brought down?the global cases from 11 to 10.

Maria Van Kerkhove is the director of the U.N. agency’s department of pandemic and epidemic preparedness and prevention. She said that the previous report "included an individual who had a inconclusive testing... We've received further confirmation from the United States of this person?was negative."

Since the outbreak?on MV Hondius a Dutch luxury ship that left Argentina for a polar exploration?on 1 April, three people - a Dutch pair and a German national – have died.

In several European countries, crew members, passengers and those in contact with them have been quarantined. U.S. officials said on Thursday that there are no confirmed cases of the disease in the United States. They added that 41 people, including 18 quarantined in Nebraska and Atlanta, have been monitored for possible infections.

The Andes virus is the cause of the current outbreak. It's a rare strain of hantavirus and it's the only hantavirus known to have limited transmission from human to human, usually after prolonged and close contact.

The virus has been circulating in Argentina and Chile since the 1960s and the ship samples do not show any significant variation.

Van Kerkhove stated that WHO experts "haven’t identified any changes... in the virus which would make it more transmissible, or more severe."

The WHO stressed that this outbreak was not "comparable" to COVID and did not pose any pandemic risk.

Hantaviruses, rodent-borne virus, are spread by contact with the urine, droppings, or saliva of infected rodents. In rare cases, they can also be passed between people. The incubation period can be from one to six weeks.

There is no specific antiviral treatment or vaccine for hantavirus. The care provided is mostly supportive.

The WHO recommends that high-risk contact persons be monitored and quarantined for 42 days following exposure. Low-risk contact persons are advised to monitor themselves and seek medical attention if they develop symptoms.

(source: Reuters)