This is the phase where the virus is in the bloodstream. The virus enters the mosquito's stomach and adds a lot more then travels to the salivary glands.
Which is a term that has a virus is in the blood stream? Virus goes into the stomach of mosquitoes and add more, and then traveled to the saliva glands.
This is also the period in which a virus is infected blood into the stomach and increase the total number of mosquitoes of more and then travel to salivary