
Cases are determined at 10:00 AM ET on the Expiration Date (June 8). Cases that actually occur between the end of the specified time period and Expiration do not count, but newly reported cases during this window do count if they are backdated to before June 2026. See the full rules for how Source Agencies are prioritized.
"Cases" refers exclusively to confirmed cases of Andes virus (ANDV) infection as classified by the Source Agency. Probable, suspected, and under-investigation cases are excluded.