What most naturally follows?

How to avoid workplace flu
Discover when a shot will be available.
The flu shot is made available at the same time each year. A group of private pharmaceutical companies produce the vaccine and distribute it to doctor's offices and medical facilities.
Usually shipments are made in july or august, and doctors are told to start giving the shot as soon as they receive it. The vaccine supply usually runs out in late fall, around october, depending on how many people seek out a flu shot.