Immunizations
The staff at the Student Advisory Health Administration Office (SAHA) collects and screens the immunization documentation required by the Commonwealth of Massachusetts and Tufts University and those recommended for healthcare workers by the Centers for Disease Control and Prevention (CDC).
The required immunizations are listed on the School Immunization Information and Requirements page; go to your school link to see the specific immunization requirements for your school. Please review the requirements carefully, prior to submitting your Immunization Form. Immunization requirements are subject to change. The Immunization Form must be completed and signed by a health care professional.
The Student Advisory Health Administration Office does not offer medical services. Immunizations can be obtained from your primary care provider or by using one of the resources listed on the Medical Care Resources page. Please make sure your health insurance is accepted by the listed resources before receiving any medical care.
School Immunization Information and Requirements
Newly Accepted Students - Prior to Arrival
All newly accepted students are required to submit immunization documentation by the deadline given by the Student Advisory Health Administration Office.
Currently Registered/Enrolled Students
Registered students are required to keep their immunizations up-to-date, to be in compliance with Massachusetts State Law and Tufts University Immunizations Requirements.
Immunization requirements are subject to change. Changes will be posted on the Immunization web page and an email notification will be sent to all students.
Deadlines and Requirements - by school or program
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Immunization Requirements
All newly accepted students are required to submit immunization documentation by the deadlines listed below:
- IS Program - December 1, 2024
- DPG and MS Programs - June 1, 2025
- GPR Program - June 1, 2025
- DMD Program - June 1, 2025
The following immunizations are required as a condition of matriculation and must be kept up-to-date:
If submitting antibody titer (blood work) laboratory reports must be included with other immunization documentation.
Tetanus Diphtheria Acellular Pertussis (Tdap): One dose of the adult Tdap vaccine is required. The Tdap is vaccine is required every 10 years.
Measles, Mumps and Rubella (MMR): Two doses of MMR vaccine or positive antibody titers for measles, mumps and rubella.
Tuberculosis Testing: 2-Step Tuberculosis Skin Test (TST) OR 1 QuantiFERON Gold Test: Required within 3 months prior to program start date at Tufts University. The 2-step TST involves two tests performed within one to four weeks of each other.
For those with a positive TB test result see positive TB section of form.
Incoming and Returning Students - With a NEW positive TB test (2-step TST or QuantiFERON Gold Test) should contact BostonStudentHealth@tufts.edu for guidance.
History of Prior Positive TB Test Result: Students with a history of a prior positive TB test result are required to submit documentation of their prior positive test result AND documentation of counseling or treatment for latent tuberculosis infection. Students will be required to complete a symptom screen with the Tufts Student Health Services (Boston campus -BostonStudentHealth@tufts.edu). A chest X-ray obtained within 3 months of the start date may be required at the discretion of Boston Student Health Services. If documentation of a prior positive TB test is unavailable, repeat testing is required. Students with a prior positive TB skin test without counseling or treatment for latent tuberculosis infection are required to submit the results of a QuantiFERON Gold blood test.
History of prior BCG vaccination is not acceptable as proof of positive tuberculin status. BCG recipients must provide documentation of a QuantiFERON Gold blood test.
Varicella (chicken pox): positive antibody titer (if history of disease) or two doses of vaccine.
Hepatitis B: positive quantitative (numeric value) antibody titer required AND 3 doses or 2 doses of Heplisav-B should be recorded but will not substitute for antibody titer.
The hepatitis B vaccine three-dose series, takes six months to complete. For students restarting the three-dose series, documentation for two doses of the vaccine must be submitted by the deadline.
Influenza: The 2024-2025 Seasonal Influenza vaccine is required for all students.
COVID-19: Proof of vaccination required: two doses of primary series and one booster dose. If previously not vaccinated, one dose of the most current COVID vaccine is required (per current guidelines).
Recommended
Meningococcal: Recommended (except for students 21 years of age and younger): Documentation of a dose of MenACWY vaccine received on or after 16th birthday. Students 21 years of age and younger: dose on or after 16th birthday or signed State Waiver Form. For more information read the Meningococcal Disease Information Fact Sheet.
Polio: Proof of vaccination may be required in the future.
-
Immunization Requirements
All newly accepted students are required to submit immunization documentation by the deadlines listed below:
- MD Program - July 1, 2025
- MD/PhD Program - June 1, 2025
Students applying for away rotations during 4th year may need to meet additional immunization requirements. Several medical centers require positive antibody titers (blood work) for measles, mumps, rubella, varicella and hepatitis B, instead of proof of vaccination. Laboratory reports are required.
The following immunization documentation is required as a condition of matriculation and must be kept up-to-date:
If submitting antibody titer (blood work) laboratory reports must be included with other immunization documentation.
Tetanus Diphtheria Acellular Pertussis (Tdap): One dose of the adult Tdap vaccine is required. The Tdap is vaccine is required every 10 years.
Measles, Mumps and Rubella (MMR): Two doses of MMR vaccine OR positive antibody titers for measles, mumps, and rubella.
Tuberculosis Testing: 2-Step Tuberculosis Skin Test (TST) OR 1 QuantiFERON Gold Test: Required within 3 months prior to program start date at Tufts University. The 2-step TST involves two tests performed within one to four weeks of each other.
TB testing is required annually. Annual TB Test can be either 1-Step TST or 1 QuantiFERON Gold Test.
For those with a positive TB test result see positive TB section of form.
Incoming and Returning Students - With a NEW positive TB test (2-step TST or QuantiFERON Gold Test) should contact BostonStudentHealth@tufts.edu for guidance.
History of Prior Positive TB Test Result: Students with a history of a prior positive TB test result are required to submit documentation of their prior positive test result AND documentation of counseling or treatment for latent tuberculosis infection. Students will be required to complete a symptom screen with the Tufts Student Health Services (Boston campus -BostonStudentHealth@tufts.edu). A chest X-ray obtained within 3 months of the start date may be required at the discretion of Boston Student Health Services. If documentation of a prior positive TB test is unavailable, repeat testing is required. Students with a prior positive TB skin test without counseling or treatment for latent tuberculosis infection are required to submit the results of a QuantiFERON Gold blood test.
History of prior BCG vaccination is not acceptable as proof of positive tuberculin status. BCG recipients must provide documentation of a QuantiFERON Gold blood test.
Varicella (chicken pox): positive antibody titer (if history of disease) or two doses of vaccine.
Hepatitis B: positive quantitative (numeric value) antibody titer required AND 3 doses or 2 doses of Heplisav-B should be recorded but will not substitute for antibody titer.
The hepatitis B vaccine three-dose series, takes six months to complete. For students restarting the three-dose series, documentation for two doses of the vaccine must be submitted by the deadline.
Influenza: The 2024-2025 Seasonal Influenza vaccine is required for all students.
COVID-19: Proof of vaccination required: Two doses of primary series and one booster dose. If previously not vaccinated, one dose of the most current COVID vaccine is required (per current guidelines).
Recommended
Meningococcal: Recommended (except for students 21 years of age and younger): Documentation of a dose of MenACWY vaccine received on or after 16th birthday. Students 21 years of age and younger: dose on or after 16th birthday or signed State Waiver Form. For more information read the Meningococcal Disease Information Fact Sheet.
Polio: Documentation of vaccination is recommended. Proof of vaccination may be required in the future.
-
Immunization Requirements
All newly accepted students are required to submit immunization documentation by the deadlines listed below:
- All Nutrition Programs - July 1, 2025
The following immunizations are required as a condition of matriculation and must be kept up-to-date:
If submitting antibody titer (blood work) laboratory reports must be included with other immunization documentation.
Tetanus Diphtheria Acellular Pertussis (Tdap): One dose of the adult Tdap vaccine is required. The Tdap is vaccine is required every 10 years.
Measles, Mumps and Rubella (MMR): Two doses of MMR vaccine or positive antibody titers for measles, mumps and rubella.
Tuberculosis Testing: 2-Step Tuberculosis Skin Test (TST) OR 1 QuantiFERON Gold Test: Required within 3 months prior to program start date at Tufts University. The 2-step TST involves two tests performed within one to four weeks of each other.
TB testing is required annually for Nutrition Dietetic Interns. Annual TB Test can be either 1-Step TST or 1 QuantiFERON Gold Test.
For those with a positive TB test result see positive TB section of form.
Incoming and Returning Students - With a NEW positive TB test (2-step TST or QuantiFERON Gold Test) should contact BostonStudentHealth@tufts.edu for guidance.
History of Prior Positive TB Test Result: Students with a history of a prior positive TB test result are required to submit documentation of their prior positive test result AND documentation of counseling or treatment for latent tuberculosis infection. Students will be required to complete a symptom screen with the Tufts Student Health Services (Boston campus -BostonStudentHealth@tufts.edu). A chest X-ray obtained within 3 months of the start date may be required at the discretion of Boston Student Health Services. If documentation of a prior positive TB test is unavailable, repeat testing is required. Students with a prior positive TB skin test without counseling or treatment for latent tuberculosis infection are required to submit the results of a QuantiFERON Gold blood test.
History of prior BCG vaccination is not acceptable as proof of positive tuberculin status. BCG recipients must provide documentation of a QuantiFERON Gold blood test.
Varicella (chicken pox): positive antibody titer (if history of disease) or two doses of vaccine.
Hepatitis B: 3 doses; 2 doses of Heplisav-B given or positive Hepatitis B quantitative (numeric value) antibody titer (laboratory evidence of immunity)
Nutrition Dietetic Interns: Hepatitis B positive quantitative (numeric value) antibody titer required AND 3 doses or 2 doses of Heplisav-B should be recorded but will not substitute for antibody titer.
The hepatitis B vaccine three-dose series, takes six months to complete. For students restarting the three-dose series, documentation for two doses of the vaccine must be submitted by the deadline.
Influenza: The 2024-2025 Seasonal Influenza vaccine is required for all students.
COVID: Required for Dietetic Interns: Two doses of primary series and one booster dose. If previously not vaccinated, one dose of the most current COVID vaccine is required (per current guidelines).
Recommended
COVID-19: Two doses of primary series and one booster dose. If previously not vaccinated, one dose of the most current COVID vaccine is required (per current guidelines).
Meningococcal: Recommended (except for students 21 years of age and younger): Documentation of a dose of MenACWY vaccine received on or after 16th birthday. Students 21 years of age and younger: dose on or after 16th birthday or signed State Waiver Form. For more information read the Meningococcal Disease Information Fact Sheet.
Polio: Proof of vaccination may be required in the future.
-
Immunization Requirements
All newly accepted students are required to submit immunization documentation by the deadlines listed below:
- MPH, MBS and M-HIA - Deadline is July 1, 2025
The following immunization documentation is required as a condition of matriculation and must be kept up to date:
If submitting antibody titer (blood work) laboratory reports must be included with other immunization documentation.
Tetanus Diphtheria Acellular Pertussis (Tdap): One dose of the adult Tdap vaccine is required. The Tdap is vaccine is required every 10 years.
Measles, Mumps and Rubella (MMR): Two doses of MMR vaccine or positive antibody titers for measles, mumps and rubella.
Tuberculosis Testing: 2-Step Tuberculosis Skin Test (TST) OR 1 QuantiFERON Gold Test: Required within 3 months prior to program start date at Tufts University. The 2-step TST involves two tests performed within one to four weeks of each other.
For those with a positive TB test result see positive TB section of form.
Incoming and Returning Students - With a NEW positive TB test (2-step TST or QuantiFERON Gold Test) should contact BostonStudentHealth@tufts.edu for guidance.
History of Prior Positive TB Test Result: Students with a history of a prior positive TB test result are required to submit documentation of their prior positive test result AND documentation of counseling or treatment for latent tuberculosis infection. Students will be required to complete a symptom screen with the Tufts Student Health Services (Boston campus -BostonStudentHealth@tufts.edu). A chest X-ray obtained within 3 months of the start date may be required at the discretion of Boston Student Health Services. If documentation of a prior positive TB test is unavailable, repeat testing is required. Students with a prior positive TB skin test without counseling or treatment for latent tuberculosis infection are required to submit the results of a QuantiFERON Gold blood test.
History of prior BCG vaccination is not acceptable as proof of positive tuberculin status. BCG recipients must provide documentation of a QuantiFERON Gold blood test.
Varicella (chicken pox): positive antibody titer (if history of disease) or two doses of vaccine.
Hepatitis B: 3 doses; 2 doses of Heplisav-B given or positive Hepatitis B quantitative (numeric value) antibody titer (laboratory evidence of immunity)
The hepatitis B vaccine three-dose series, takes six months to complete. For students restarting the three-dose series, documentation for two doses of the vaccine must be submitted by the deadline.
Influenza: The 2024-2025 Seasonal Influenza vaccine is required for all students.
Recommended
COVID-19: Two doses of primary series and one booster dose. If previously not vaccinated, one dose of the most current COVID vaccine is required (per current guidelines).
Meningococcal: Recommended (except for students 21 years of age and younger): Documentation of a dose of MenACWY vaccine received on or after 16th birthday. Students 21 years of age and younger: dose on or after 16th birthday or signed State Waiver Form. For more information read the Meningococcal Disease Information Fact Sheet.
Polio: Proof of vaccination may be required in the future.
-
Immunization Requirements
All newly accepted students are required to submit immunization documentation by the deadlines listed below:
- January Start Date - Deadline is December 1, 2024
Students going on rotations during 2nd year may need to meet additional immunization requirements. Several medical centers require positive antibody titers (blood work) for measles, mumps, rubella, varicella and hepatitis B, instead of proof of vaccination. Laboratory reports are required
The following immunization documentation is required as a condition of matriculation and must be kept up to date:
If submitting antibody titer (blood work) laboratory reports must be included with other immunization documentation.
Tetanus Diphtheria Acellular Pertussis (Tdap): One dose of the adult Tdap vaccine is required. The Tdap is vaccine is required every 10 years.
Measles, Mumps and Rubella (MMR): Two doses of the MMR vaccine OR positive antibody titers for measles, mumps and rubella.
Tuberculosis Testing: 2-Step Tuberculosis Skin Test (TST) OR 1 QuantiFERON Gold Test: Required within 3 months prior to program start date at Tufts University. The 2-step TST involves two tests performed within one to four weeks of each other.
TB testing is required annually. Annual TB Test can be either 1-Step TST or 1 QuantiFERON Gold Test.
For those with a positive TB test result see positive TB section of form.
Incoming and Returning Students - With a NEW positive TB test (2-step TST or QuantiFERON Gold Test) should contact BostonStudentHealth@tufts.edu for guidance.
History of Prior Positive TB Test Result: Students with a history of a prior positive TB test result are required to submit documentation of their prior positive test result AND documentation of counseling or treatment for latent tuberculosis infection. Students will be required to complete a symptom screen with the Tufts Student Health Services (Boston campus -BostonStudentHealth@tufts.edu). A chest X-ray obtained within 3 months of the start date may be required at the discretion of Boston Student Health Services. If documentation of a prior positive TB test is unavailable, repeat testing is required. Students with a prior positive TB skin test without counseling or treatment for latent tuberculosis infection are required to submit the results of a QuantiFERON Gold blood test.
History of prior BCG vaccination is not acceptable as proof of positive tuberculin status. BCG recipients must provide documentation of a QuantiFERON Gold blood test.
Varicella (chicken pox): positive antibody titer (if history of disease) or two doses of vaccine.
Hepatitis B: positive quantitative (numeric value) antibody titer required AND 3 doses or 2 doses of Heplisav-B should be recorded but will not substitute for antibody titer.
The hepatitis B vaccine three-dose series, takes six months to complete. For students restarting the three-dose series, documentation for two doses of the vaccine must be submitted by the deadline.
Influenza: The 2024-2025 Seasonal Influenza vaccine is required for all students.
COVID-19: Proof of vaccination required: Two doses of primary series and one booster dose. If previously not vaccinated, one dose of the most current COVID vaccine is required (per current guidelines).
Recommended
Meningococcal: Recommended (except for students 21 years of age and younger): Documentation of a dose of MenACWY vaccine received on or after 16th birthday. Students 21 years of age and younger: dose on or after 16th birthday or signed State Waiver Form. For more information read the Meningococcal Disease Information Fact Sheet.
Polio: Proof of vaccination may be required in the future.
-
Immunization Requirements
All newly accepted students are required to submit immunization documentation by the deadlines listed below:
- Boston - May 1, 2025
- Phoenix - May 1, 2025
- Seattle - August 1, 2025
The following immunization documentation is required as a condition of matriculation and must be kept up to date:
If submitting antibody titer (blood work) laboratory reports must be included with other immunization documentation.
Tetanus Diphtheria Acellular Pertussis (Tdap): One dose of the adult Tdap vaccine is required. The Tdap is vaccine is required every 10 years.
Measles, Mumps and Rubella (MMR): Two doses of the MMR vaccine OR positive antibody titers for measles, mumps and rubella.
Tuberculosis Testing: 2-Step Tuberculosis Skin Test (TST) OR 1 QuantiFERON Gold Test: Required within 3 months prior to program start date at Tufts University. The 2-step TST involves two tests performed within one to four weeks of each other.
TB testing is required annually. Annual TB Test can be either 1-Step TST or 1 QuantiFERON Gold Test.
For those with a positive TB test result see positive TB section of form.
Incoming and Returning Students - With a NEW positive TB test (2-step TST or QuantiFERON Gold Test) should contact BostonStudentHealth@tufts.edu for guidance.
History of Prior Positive TB Test Result: Students with a history of a prior positive TB test result are required to submit documentation of their prior positive test result AND documentation of counseling or treatment for latent tuberculosis infection. Students will be required to complete a symptom screen with the Tufts Student Health Services (Boston campus -BostonStudentHealth@tufts.edu). A chest X-ray obtained within 3 months of the start date may be required at the discretion of Boston Student Health Services. If documentation of a prior positive TB test is unavailable, repeat testing is required. Students with a prior positive TB skin test without counseling or treatment for latent tuberculosis infection are required to submit the results of a QuantiFERON Gold blood test.
History of prior BCG vaccination is not acceptable as proof of positive tuberculin status. BCG recipients must provide documentation of a QuantiFERON Gold blood test.
Varicella (chicken pox): positive antibody titer (if history of disease) or two doses of vaccine.
Hepatitis B: positive quantitative (numeric value) antibody titer required AND 3 doses or 2 doses of Heplisav-B should be recorded but will not substitute for antibody titer.
The hepatitis B vaccine three-dose series, takes six months to complete. For students restarting the three-dose series, documentation for two doses of the vaccine must be submitted by the deadline.
Influenza: The 2024-2025 Seasonal Influenza vaccine is required for all students.
COVID-19: Proof of vaccination required: Two doses of primary series and one booster dose. If previously not vaccinated, one dose of the most current COVID vaccine is required (per current guidelines).
Recommended
Meningococcal: Recommended (except for students 21 years of age and younger): Documentation of a dose of MenACWY vaccine received on or after 16th birthday. Students 21 years of age and younger: dose on or after 16th birthday or signed State Waiver Form. For more information read the Meningococcal Disease Information Fact Sheet.
Polio: Proof of vaccination may be required in the future.
-
Immunization Requirements
All newly accepted students are required to submit immunization documentation by the deadlines listed below:
- July Start Date - Deadline of June 1, 2025
- September State Date - Deadline of July 1, 2025
- January 2023 Start Date - Deadline of December 1, 2024
The following immunizations are required as a condition of matriculation and must be kept up-to-date:
If submitting antibody titer (blood work) laboratory reports must be included with other immunization documentation.
Tetanus Diphtheria Acellular Pertussis (Tdap): One dose of the adult Tdap vaccine is required. The Tdap is vaccine is required every 10 years.
Measles, Mumps and Rubella (MMR): Two doses of MMR vaccine or positive antibody titers for measles mumps and rubella.
Tuberculosis Testing: 2-Step Tuberculosis Skin Test (TST) OR 1 QuantiFERON Gold Test: Required within 3 months prior to program start date at Tufts University. The 2-step TST involves two tests performed within one to four weeks of each other.
For those with a positive TB test result see positive TB section of form.
Incoming and Returning Students - With a NEW positive TB test (2-step TST or QuantiFERON Gold Test) should contact BostonStudentHealth@tufts.edu for guidance.
History of Prior Positive TB Test Result: Students with a history of a prior positive TB test result are required to submit documentation of their prior positive test result AND documentation of counseling or treatment for latent tuberculosis infection. Students will be required to complete a symptom screen with the Tufts Student Health Services (Boston campus -BostonStudentHealth@tufts.edu). A chest X-ray obtained within 3 months of the start date may be required at the discretion of Boston Student Health Services. If documentation of a prior positive TB test is unavailable, repeat testing is required. Students with a prior positive TB skin test without counseling or treatment for latent tuberculosis infection are required to submit the results of a QuantiFERON Gold blood test.
History of prior BCG vaccination is not acceptable as proof of positive tuberculin status. BCG recipients must provide documentation of a QuantiFERON Gold blood test.
Varicella (chicken pox): positive antibody titer (if history of disease) or two doses of vaccine.
Hepatitis B: 3 doses; 2 doses of Heplisav-B given or positive Hepatitis B quantitative (numeric value) antibody titer (laboratory evidence of immunity)
The hepatitis B vaccine three-dose series, takes six months to complete. For students restarting the three-dose series, documentation for two doses of the vaccine must be submitted by the deadline.
Influenza: The 2024-2025 Seasonal Influenza vaccine is required for all students.
Recommended
COVID-19: Two doses of primary series and one booster dose. If previously not vaccinated, one dose of the most current COVID vaccine is required (per current guidelines).
Meningococcal: Recommended (except for students 21 years of age and younger): Documentation of a dose of MenACWY vaccine received on or after 16th birthday. Students 21 years of age and younger: dose on or after 16th birthday or signed State Waiver Form. For more information read the Meningococcal Disease Information Fact Sheet.
Polio: Proof of vaccination may be required in the future.
-
Immunization Requirements
All newly accepted students are required to submit immunization documentation by the deadlines listed below:
- DVM Program - July 1, 2025
- PhD and MS programs - July 1, 2025
- May Ross Program - May 1, 2025
- January Ross Program – December 1, 2024
Rabies vaccine is required for DVM and Ross students. University Rabies Vaccine Policy.
Students in the master’s and PhD program are not required to be vaccinated for rabies unless they are going to work on projects that require direct contact with unvaccinated wild or domestic mammals that may carry rabies.
If the 2-dose series is 1 year old or older, an antibody titer is required. If the titer level is not protective, a booster is required. Students who have previously completed a 3-dose series or have a protective titer are considered to have complied with the requirement.
The following immunizations are required as a condition of matriculation and must be kept up-to-date:
If submitting antibody titer (blood work) laboratory reports must be included with other immunization documentation.
Tetanus Diphtheria Acellular Pertussis (Tdap): One dose of the adult Tdap vaccine is required. The Tdap is vaccine is required every 10 years.
Measles, Mumps and Rubella (MMR): Two doses of MMR vaccine or positive antibody titers for measles, mumps and rubella.
Varicella (chicken pox): positive antibody titer (if history of disease) or two doses of vaccine.
Rabies: Required for DVM and ROSS Students: The standard vaccination protocol is two doses (Day 1 and Day 7), followed by a titer on the one-year anniversary. If the titer is positive, no further vaccine or titers will be required.
Students who have previously completed a 3-dose series or have a protective titer are considered complete with the requirement.
MS and PhD: Students in the MS and PhD program are not required to be vaccinated for rabies unless they are going to work on projects that require direct contact with unvaccinated wild or domestic mammals that may carry rabies.
Hepatitis B: 3 doses; 2 doses of Heplisav-B given or positive Hepatitis B quantitative (numeric value) antibody titer (laboratory evidence of immunity)
The hepatitis B vaccine three-dose series, takes six months to complete. For students restarting the three-dose series, documentation for two doses of the vaccine must be submitted by the deadline.
Recommended
Influenza: The Seasonal Influenza vaccine.
COVID-19: Two doses of primary series and one booster dose. If previously not vaccinated, one dose of the most current COVID vaccine is required (per current guidelines).
Meningococcal: Recommended (except for students 21 years of age and younger): Documentation of a dose of MenACWY vaccine received on or after 16th birthday. Students 21 years of age and younger: dose on or after 16th birthday or signed State Waiver Form. For more information read the Meningococcal Disease Information Fact Sheet.
Polio: Proof of vaccination may be required in the future.
Immunization Record
Students may access or request verification of submitted immunization documentation through the Student Health Portal (Medicat). The Immunization Record that lists each vaccine with date received and antibody titer dates with results. The Immunization Record is accepted at most clinics and hospitals.
You can obtain your immunization record within the student health portal https://go.tufts.edu/portal.
To Access Portal
- To log into the portal use your Tufts username (UTLN) and password.
- Select the Boston Health Service
- To print Immunization Record
- Select Immunizations on the left-hand side of the page.
- Go to the bottom of the page and hit the green print button
Questions Contact:
saha-imm-admin@tufts.edu
617-636-2712