Most districts dip below the required 176 days. America's traditional 180-day school year is more myth than reality in Illinois, as a jumble of state laws, rules and waivers allow districts to chip away instruction time, shorten school hours and cut the number of days students come to school.
The influenza virus nasal vaccine is a live virus vaccine. Influenza virus vaccine is also available in an injectable form, which is a killed virus vaccine. Influenza virus nasal vaccine works by exposing you to a small dose of the virus, which helps your body to develop immunity to the disease.
Quadrivalent flu vaccines include: 1  Quadrivalent flu shots approved for use in different age groups. 2  An intradermal quadrivalent flu shot, which is injected into the skin instead of the muscle and uses a much smaller needle than the regular flu shot. It is approved for people 18 through 64 years of age. A quadrivalent flu shot containing virus grown in cell culture, which is approved for people 4 years of age and older.