The Centers for Disease Control and Prevention (CDC) announced on Wednesday that it has officially concluded its response to the recent hantavirus outbreak linked to a cruise ship in the Atlantic Ocean. The decision marks the end of nearly two months of intensive efforts to contain the rare Andes strain, which resulted in three fatalities and multiple infections among passengers.

Acting CDC Director Jay Bhattacharya stated that protecting the public remains the agency’s top priority and confirmed the formal conclusion of the hantavirus response as of June 24, 2026. At the height of the response, over 100 CDC personnel were engaged in managing the outbreak, which prompted a significant international public health operation.

The closure follows the end of a 42-day quarantine period on Sunday for American cruise passengers who had been exposed to the virus. These individuals were confined at a specialized facility in Nebraska designed to monitor and isolate potential cases. More than a dozen Americans were initially quarantined, though some were released earlier this month after receiving assurances from their home states regarding ongoing supervision and compliance with quarantine protocols.

However, eight individuals remained in the Nebraska facility until the quarantine period concluded, including one woman who claimed she was being detained against her will. The CDC maintained its stance throughout the outbreak that the overall risk to the general U.S. population was low despite the unusual nature of the Andes hantavirus strain, which is primarily found in South America.

Unlike most hantaviruses, which do not typically spread from person to person, the Andes strain is known for its capacity to transmit between humans, heightening concerns over its potential to cause severe respiratory illness. The strain, largely endemic to Chile and Argentina, can lead to a serious and often fatal lung disease, complicating containment efforts and prompting swift action from health authorities.

With the response now completed, the CDC plans to redirect its resources to other pressing public health needs. While the outbreak appears contained, officials continue to emphasize vigilance and ongoing surveillance to prevent future incidents involving rare zoonotic diseases.