COVID-19 Vaccination FAQ for International Students and Scholars

Vaccines Accepted by Yale

Yale will accept the vaccines that have received approval or Emergency Use Authorization (EUA) by the Food and Drug Administration (FDA) or the World Health Organization (WHO).

U.S. Vaccines with FDA EUA
•    Pfizer-BioNTech
•    Moderna
•    Janssen/Johnson & Johnson (J&J)
International vaccines authorized for emergency use by the WHO (this list will be updated as new vaccines are approved):

  • AstraZeneca
  • Covishield (Serum Institute of India)
  • Sinopharm (Beijing Bio-Institute of Biological Products)
  • Comirnaty/BNT162b2 (Fosun Pharmaceuticals, Hong Kong)
  • Sinovac-CoronaVac 

The Centers for Disease Control and Prevention (CDC) currently considers people to be fully vaccinated if they are two weeks post the final dose of these vaccines.


These frequently asked questions may be helpful to Yale’s international students and scholars currently outside of the U.S. who are making plans to come or return to Yale in the summer or fall.

I was unable to get vaccinated at home. Can I be vaccinated when I arrive at Yale? Will I need to quarantine?

Vaccination prior to arrival is strongly encouraged. For those unable to do so, Yale is preparing to vaccinate any student or staff member who is not adequately vaccinated on arrival. Travel quarantine and testing upon arrival will be required per the university guidelines. Yale will provide additional information about how to schedule vaccination upon arrival on campus once it becomes available. 

Do I have to complete my arrival quarantine before getting my vaccine?

No. Vaccine and urgent health visits are considered medically necessary, and you can receive your vaccine during your arrival quarantine period. Please remember to wear an appropriate mask to your vaccination appointment and follow all other university travel guidelines. Additionally, please follow the university’s health and safety measures until you are fully vaccinated. You are considered fully vaccinated two weeks after receiving both doses in a two-dose series or one dose of a single-dose vaccine. 

Should I delay getting the vaccine offered in my home country and wait until I arrive at Yale?

COVID-19 continues to spread globally resulting in serious illness, hospitalizations and deaths. Vaccination slows transmission and prevents development and spread of virus variants so it is recommended that you get vaccinated as soon as possible with vaccine that is readily available. If you have questions, please email

I received a COVID-19 vaccine in another country (not one that is FDA-authorized). Should I be re-vaccinated at Yale?

At this time, the CDC is recommending additional vaccination with FDA-authorized vaccines for those who received doses of WHO-approved and WHO-unapproved vaccines (see table below). We will assist international students with vaccination upon arrival in New Haven. Please plan your travel with a goal of reaching full vaccination status by the time school starts. If you are unable or have questions, please email

Recommendations for International Students Who Have Received a Non-US Vaccine or are Unable to Access Vaccine 

Based on best information available as of July 7, 2021. Guidance will be updated based on CDC policy, WHO Emergency Use Listing, and evolving data.

Your Circumstance CDC Vaccination Recommendations Alternative Arrival Timing, Quarantine and Testing Guidelines3

You received a single dose WHO-unapproved vaccine

  • Sputnik V (Russia)
  • CanSinoBIO
  • Sinopharm Wuhan
  • Bharat Biotech (India)
  • Others

Receive a full series of an FDA-authorized vaccine 28 days after the non FDA-authorized vaccine

  • Pfizer1 (recommended2)
  • Janssen/J&J

Arrive ~1 week prior to the semester to allow for quarantine and testing3

You received a single dose of a WHO-approved vaccine

  • Any AstraZeneca
  • Covishield (India)
  • Sinopharm (Beijing only)
  • Comirnaty/BNT162b2
  • Sinovac CoronaVac

Receive a full series of an FDA-authorized vaccine 28 days after the non FDA-authorized vaccine

  • Pfizer1 (recommended2)
  • Janssen/J&J

Receive a single dose of an mRNA vaccine if a first dose is

  • AstraZeneca OR
  • Comirnaty/BNT162b2 OR
  • Covishield

Arrive ~1 week prior to the semester to allow for quarantine and testing3

You received 2 doses of a WHO-unapproved vaccine

  • Sputnik V (Russia)
  • CanSinoBIO
  • Sinopharm Wuhan
  • Bharat Biotech (India)
  • Others

Receive a full series of an FDA-authorized vaccine at least 28 days after the non FDA-authorized vaccine

  • Pfizer1 (recommended2)
  • Janssen/J&J

Arrive ~1 week prior to the semester to allow for quarantine and testing3

You were unable to access vaccine

Receive a full series of an FDA-authorized vaccine

  • Pfizer1 (recommended2)
  • Janssen/J&J

Arrive ~1 month prior to the semester to allow for quarantine and testingand to complete your full series

1 Yale will be stocking primarily Pfizer.

2 Yale recommends Pfizer over J&J because there is more data available on high effectiveness of the Pfizer vaccine against variants of concern. J&J remains an option for those who strongly prefer a single dose, or have an allergy to the Pfizer vaccine or one of its components.

3 All international arrivals who are not fully vaccinated with either an FDA-authorized or WHO-approved vaccine are required to quarantine for 7 days and test 3-5 days after arrival. Students in campus housing will also be required to complete an arrival test.

  • Individual students with questions about their circumstances may consult with Student Health by emailing
  • Students who, after consultation with Student Health, decide they are unable to follow the guidance in the table above may request a medical exemption and will be required to follow the requirements for members of the community who are not vaccinated which currently include mask wearing, practicing 6’ distancing, weekly asymptomatic testing, entering a daily health check, and quarantine if close contact of a case.
  • You are considered fully vaccinated:
    • two weeks after completing the second dose in an FDA or WHO approved two-dose series, or combination
    • two weeks after receiving one dose of a single-dose vaccine (Janssen/Johnson & Johnson). 

I received one dose of a two-dose vaccine in another country, can I get the second dose at Yale?

The only vaccines available for distribution in the U.S. are Pfizer, Moderna, and Johnson & Johnson.   If your first dose was not one of these three, recommendations will be made on a case-by-case basis. Please email for further guidance. 

Canada (and other countries) is mixing vaccines for the first and second dose. What should I do to comply with Yale regulations?  

If there is only one option, you will want to follow protocol while home. If you have different options and want to ensure that you pursue the best option, please provide a list and we can assist you. Once you receive all necessary doses of vaccine, submit your information through the Yale Student Vaccine Portal.

I will not be able to get two shots of the same WHO-approved/FDA-authorized vaccine due to restrictions in my country. What combinations of vaccines will Yale accept?

It is always best to receive vaccine as designed by the manufacturers, however we have found that several countries are now mixing vaccines due to supply issues.  At this time, these are the combinations of WHO-approved/FDA-authorized vaccine that Yale will accept.

  • Pfizer + Moderna
  • Astrazeneca + Pfizer, Astrazeneca + Moderna
  • Sinopharm + Sinovac
  • Comirnaty + Pfizer, Comirnaty + Moderna, Comirnaty + Astrazeneca

I received my first shot at home 3 months ago.  When I return to campus can I still get the second dose?

It is always best to receive vaccinations as directed, however given all the issues related specifically to COVID vaccination, Yale is not setting strict requirements for the time period between shots. If you get your second shot outside of the recommended time period, you will be considered in compliance.

I am an international student starting at Yale this fall.  I will receive my 1st dose when I arrive, but won’t be able to receive the 2nd dose until after classes start. Will I be able to go to class while I await my 2nd dose?

All students are required to be fully vaccinated by the time school starts. Please refer to Dean Boyd’s email sent May 19, 2021 if you are an undergraduate or OISS’s email sent June 2, 2021 if you are a graduate student. Please get in touch with your specific school Dean if you feel you will not be able to fulfill this requirement.

In my country, those who have had COVID need only one shot of a two-dose vaccine. Does Yale accept this?

No. Yale requires both doses of a two-dose vaccine, regardless of infection history.

I’ve had COVID-19. Do I still need to get a vaccine?

Yes, however, you should wait 4 weeks after your positive test date to receive your COVID-19 vaccine. A prior infection or evidence of antibodies does not substitute for full vaccination, ie both doses in a two-dose series or one dose of a single-dose vaccine.

My test for antibodies is positive, do I still need to be vaccinated?

Blood tests for antibodies to SARS-CoV-2 will not be accepted in place of vaccination. At this time, antibody tests cannot be interpreted as proof of immunity to COVID-19 and are not recommended post vaccination. People with positive antibody tests who are not fully vaccinated will not be exempted from public health requirements including the daily health check and weekly testing.

Does the COVID-19 vaccination cost anything?

We are offering COVID-19 vaccination to the Yale community at no cost. However, vaccine providers for the general public may be able to charge an administration fee for performing vaccinations. Bring a photo ID and health insurance card with you to your vaccine appointment. Yale Health members can download or print a version of their Yale Health insurance card which contains the required information.

How do I schedule a vaccine appointment?

You can schedule your vaccine online to receive it on campus at 310 Winchester Avenue. You can also schedule through the many options in the state through the Connecticut Department of Health vaccine portal.  If you need assistance, please call the Campus COVID Resource Line at 203-432-6604.

I am coming to campus with my spouse, can they be vaccinated at Yale as well?

Spouses can receive their vaccine through the Yale COVID-19 Vaccine Program. Spouses of Yale employees who are not Yale Health members can schedule their appointment through the many options available across the state.

Can I put my vaccination information from outside Yale into my electronic medical record?

Yes, all students, faculty, staff and trainees are required to submit their COVID-19 vaccination record to the university for COVID-19 monitoring across the Yale community.

I have more questions about my specific situation where can I get more information?

You can send your questions to, call the Campus COVID-19 Resource Line at (203) 432-6604 or your primary care physician. The Office of International Students and Scholars also maintains a comprehensive COVID-19 update on their website, including information about arrival, travel and quarantine requirements.  


Updated September 23, 2021