Below is an instruction from Human. Write a response.
    ### Instruction:
    Who is at risk for Crimean-Congo Hemorrhagic Fever (CCHF)? ?
    ### Response:
    Ixodid (hard) ticks, especially those of the genus, Hyalomma, are both a reservoir and a vector for the CCHF virus. Numerous wild and domestic animals, such as cattle, goats, sheep and hares, serve as amplifying hosts for the virus. Transmission to humans occurs through contact with infected ticks or animal blood.
    