Vaccination and Safety FAQs

SITC is looking forward to hosting a hybrid Annual Meeting & Pre-Conference Programs (SITC 2022) in November, enabling attendees to experience the meeting in-person or virtually. To help manage the safety of all attending, we will be adhering to the local safety guidelines and regulations. In addition, SITC in-person meetings will have the following safety measures in place.


Proof of full vaccination for COVID-19 will be required for all in-person program attendees. “Fully vaccinated” means either two weeks have passed since receiving the second dose of an FDA- or WHO-authorized double-dose COVID-19 vaccine or two weeks have passed since receiving the one dose of an FDA- or WHO-authorized single-dose COVID-19 vaccine. SITC is currently exploring options for validating this information and will communicate that process when it is available.

Masking Guidelines

Masks are not currently required at SITC events. SITC strongly recommends masks to be worn indoors for attendees.

If you are unable to attend SITC 2022 in person, we invite you to attend virtually.

The SITC leadership will continue to monitor the CDC guidelines and will evaluate SITC in-person meeting safety precautions periodically. If changes are made to the safety precautions described above, all registrants will be notified.

Vaccine and Safety FAQs

Q: Will you be conducting onsite COVID testing?
A: At this time, we do not have plans to conduct onsite testing.

Q: Is COVID-19 testing required at any point during the conference?
A: At this time, no.

Q: What do you mean by full vaccination? What if I’ve only had one dose of a two-dose vaccine?
A: We are following the CDC’s definition of fully vaccinated:
  • 2 weeks after the second dose in a 2-dose series of an FDA- or WHO- authorized COVID vaccine, such as the Pfizer-BioNTech or Moderna vaccines, or
  • 2 weeks after an DFA- or WHO approved single-dose vaccine, such as Johnson & Johnson’s Janssen vaccine
  • Therefore if you have only had one dose of a two-dose vaccine, you are not considered fully vaccinated.

Q: Will you require a 3rd dose/booster?
A: No.

Q: Will you accept proof of a negative COVID test in place of proof of vaccination?
A: No.

Q: Will you accept proof of presence of COVID antibodies in place of proof of vaccination?
A: No.
Q: Can I change my registration type from in-person to virtual, or virtual to in-person?
A: Yes, contact

Q: Can I cancel my registration if I don’t plan to get vaccinated?
A: Yes, contact

Q: What if I have COVID-19 or a known exposure risk before attending?
A: If you have tested positive for COVID-19 or have recently been exposed to COVID-19, please follow CDC guidelines for the appropriate precautions you should take:
  • CDC guidelines for Isolation and Precautions for People with COVID-19
  • CDC guidelines for What to Do If You Were Exposed to COVID-19
  • Regardless of the CDC guidelines above, in person attendees at SITC 2022 will still be required to show proof of full vaccination, and mask wearing indoors will be strongly encouraged. SITC is working to provide a safe and meaningful conference and trust that attendees, exhibitors, and SITC staff will do as well.

Q: Will you be conducting contact tracing after the meeting?
A: No, we do not have plans to conduct contact tracing.

Q: Do my guests attending SITC social events need to be vaccinated?
A: Yes, partners, guests, and anyone accompanying attendees to events at the SITC Annual Meeting must be fully vaccinated.