Hamsters carrying hantavirus may transmit the virus to humans, causing renal syndrome hemorrhagic fever, but the chance of hamsters obtained from regular sources carrying the virus is very small. If hantavirus is present in hamsters, the virus may be hidden in their excreta and spread through air, water and direct contact, etc. In addition, certain mites can act as intermediate hosts to spread hemorrhagic fever to humans or other rodents, so hamsters can cause transmission in the presence of hemorrhagic fever pathogens. However, as a common pet, the chance of hamsters carrying the hemorrhagic fever virus is small, much lower than that of rodents such as brown house mice, and hamsters purchased through regular channels generally do not carry the virus. If you develop symptoms related to hemorrhagic fever after keeping a hamster, you should seek medical attention immediately to avoid delays.