Having herd immunity can stop or slow the spread of disease because it is harder for the germ to find people who are susceptible to disease and make them sick.
The current Pfizer vaccine for 12 and up cannot be used for children age 5-11 years.
The benefits of vaccination outweigh the slight risk of this side effect and the chance of having this occur is very rare.
No one should receive a bill for the vaccine or administration fee.