In addition, the CDC advises that youngsters ages 5 years and older who are moderately to severely immunocompromised ought to get an extra primary dose of the vaccine 28 days after their second shot. Vector vaccines use a modified virus like a cold virus that can’t make copies of itself or infect you. The vector virus tells your body to make harmless items of “spike proteins.” Your immune system sees the spike protein doesn’t belong in your physique and starts constructing an immune response. This means that the next time you are available contact with the COVID-19 virus your physique is aware of the method to struggle it off. The Pfizer-BioNTech, Moderna and Johnson & Johnson vaccines are available in Vermont. Data from scientific trials and in the true world has shown that all three COVID-19 vaccines are protected and effective.