90-Second Read: California health officials monitoring 4 residents exposed to Hantavirus amid outbreak

California health officials on Monday released new information about four residents who were exposed to the Hantavirus and are now being monitored. That person was not on the ship but was exposed to someone who was ill on a plane in South Africa, according to health officials. The two people being monitored in California are not currently showing symptoms, but health officials said it can take up to 42 days for symptoms to appear.

A South Bay resident from Santa Clara County was on the MV Hondius cruise ship but disembarked before the outbreak. Two other Californians were also on the ship and disembarked over the weekend in the Canary Islands. State health officials addressed questions about the two people who have returned home to California and whether they are in quarantine.

Health experts said Hantavirus typically requires close and prolonged contact with someone who is symptomatic, which may explain how it spread on the ship. Officials said there have been nine confirmed cases tied to the outbreak, including three deaths. They are now in quarantine at a federal facility in Nebraska.