হলুদ জ্বর প্রধানত মানুষের মধ্যে কী থেকে সংক্রামিত হয়?

Yellow fever is a viral disease spread by the bite of infected female Aedes (and Haemagogus) mosquitoes; only female mosquitoes bite, as they need blood for their eggs. It is not spread through water or air.