Second Doses

When Should I Get My Second Dose?

It is currently recommended that people receive a second dose as close to the recommended timeframe as possible:

  • Pfizer-BioNTech Vaccine – no earlier than 21 days after the first dose
  • Moderna – no earlier than 28 days after the first dose

You should get your second shot as close to the recommended 3-week or 4-week interval as possible. However, your second dose may be given up to 6 weeks (42 days) after the first dose, if necessary. You should not get the second dose early.

Where Can I Get My Second Dose?

You can get your second dose at any CCHHS COVID-19 Vaccine event! Be sure to bring your COVID-19 vaccine record card with you. You must get the same manufacturer brand as your first dose (i.e. if you receive Pfizer for your first dose, you must also receive Pfizer for your second dose).

Booster Doses

Those who received the Pfizer-BioNTech vaccine are eligible for a booster dose if they:

  • Completed their initial series at least 5 months ago AND
  • Are over the age of 5

Those who received the Moderna vaccine are eligible for a booster dose if they:

  • Completed their initial series at least 5 months ago AND
  • Are over the age of 18

Those who received the Janssen vaccine are eligible for a booster dose if they:

  • Received their initial dose at least 2 months ago AND
  • Are over the age of 18

A second Booster Dose is recommended 4 moths after receiving the first booster for:

  • Adults ages 50 years and older
  • People ages 12 and older who are immunocompromised,
  • People who received the Janssen vaccine for both their primary dose and booster

Second boosters can only be Moderna or Pfizer. Talk to your healthcare provider.

Third Doses

People with moderately to severely compromised immune systems are especially vulnerable to COVID-19, and may not build the same level of immunity to 2-dose vaccine series compared to people who are not immunocompromised. This additional dose intended to improve immunocompromised people’s response to their initial vaccine series.

CDC recommends that people with moderately to severely compromised immune systems receive an additional dose of mRNA COVID-19 vaccine at least 28 days after a second dose of Pfizer COVID-19 vaccine or Moderna COVID-19 vaccine.

A booster dose for those who are immunocompromised is recommended at least 3 months after the third dose in the primary series, for a total of four doses, Pfizer or Moderna vaccines are recommended by the CDC for booster doses.