e5502d32_t_Pandemic_Flu___Public_Health__Pandemic_Flu
[Seasonal Flu] A flu vaccine (flu shot or nasal spray) is made each year to prevent the spread of seasonal flu. [Pandemic Flu] 
A vaccine for pandemic flu may not be available when pandemic flu first breaks out. It may take 4 to 6 months to make the first doses of pandemic-specific vaccine.
About Pandemic Flu - Public Health
Pandemic Flu