Many hospitals are making seasonal flu shots mandatory for their employees. Some facilities will allow workers with a medical or religious release to be excused from receiving the shot but they are required to wear a mask for the duration of the "flu season". Other facilities are firing employees that refuse to get the flu shot. Why?

Many hospitals are making seasonal flu shots mandatory for their employees. Some facilities will allow workers with a medical or religious release to be excused from receiving the shot but they are required to wear a mask for the duration of the "flu season". Other facilities are firing employees that refuse to get the flu shot. Why?