Screening

Management of contacts: cruise ship outbreak 2026

The World Health Organization (WHO) recommends contacts of Andes virus (ANDV) cases should be classified into high- or low-risk categories based on their exposure risk.[76]

  • High-risk contacts should undergo daily active monitoring in a designated facility or home quarantine for 42 days after the last known exposure. High-risk contacts should avoid contact with other people and follow the guidance from their local public health authority.

  • Low-risk contacts should undergo daily passive self-monitoring for symptoms for 42 days after the last known exposure. Low-risk contacts have no restrictions, but should isolate if they develop symptoms compatible with hantavirus infection.

For detailed guidance on the management of contacts, refer to the WHO guideline:

The Centers for Disease Control and Prevention (CDC) recommends contacts of ANDV cases should be classified into contacts with high-risk exposure or a standard monitoring group. Recommendations for high-risk contacts are similar to WHO guidelines, but are specific to a US audience:

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