For more details, please review the CDCвЂ™s information for moderately to severely immunocompromised people. Most young people aged 16 and 17 should have their 2nd dose from 12 weeks after their 1st dose. If you are not sure whether you fit into any of these categories, please contact your medical provider.

Are taking drugs like high-dose steroids or other medications that may cause severe suppression of the immune system.Are diagnosed with HIV and have a high viral load or low CD4 count, or are not currently taking medication to treat HIV.Are diagnosed with moderate or severe primary immunodeficiency (such as DiGeorge syndrome or Wiskott-Aldrich syndrome). Previous guidance said the second doses should be administered three weeks after the first shot of the Pfizer vaccine or four weeks after the first shot of the Moderna vaccine.Received a stem cell transplant within the last two years, or are taking medicine to suppress the immune system.Received an organ transplant and are taking medicine to suppress the immune system.Have been receiving active cancer treatment for tumors or cancers of the blood.Who can get an additional dose of a COVID-19 vaccine?Дepending on the age of the person who is immunocompromised, the CDC recommends an additional dose or doses.

Pfizer 2nd dose timing