Short answer
CDC states signs and symptoms of HPS due to Andes virus appear 4 to 42 days after exposure. People with possible exposure should follow public-health monitoring instructions and seek medical care if symptoms develop.
Why the range matters
A long incubation window is one reason official guidance may use monitoring periods measured in weeks. This tracker does not determine whether an individual exposure requires monitoring.
Frequently asked questions
Can symptoms appear weeks later?
Yes. CDC gives a 4 to 42 day range for HPS due to Andes virus.
Does this page decide my risk?
No. Individual risk and monitoring instructions come from clinicians and public-health authorities.
Primary sources reviewed
CDC, WHO, and ECDC official public-health pages were reviewed for this build. Current outbreak counts use official outbreak updates; evergreen pages use official background and guidance pages.