Vermont Titer Testing

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Some Vermont employers require antibody testing, also known as titer testing, as part of their pre-employment screening process. Existing employees may also be tested periodically as part of the process to ensure safety in the workplace, especially for industries such as healthcare or education. Titer testing is the first step to determining if someone is immune to certain diseases, such as varicella (Chickenpox), hepatitis A, hepatitis B, hepatitis C, measles, mumps, rubella, or COVID-19. If the antibody test indicates that an individual is not immune, Health Street can also provide services for vaccines and immunizations.

To register online for a titer test in Vermont, simply click the "Register Now" button below. To schedule via phone or to contact us with questions regarding your antibody testing services, please reach us at (888) 378-2499.

Choose an Antibody Test in Vermont

Assess a person's immunity to infectious diseases with the antibody testing options provided by Health Street in Vermont. Find the right test for you below.

Hepatitis A Antibody Test

(starting at $179)

Assess hepatitis A immunity.


Hepatitis B Antibody Test

(starting at $199)

Determine immunity to hepatitis B.


Hepatitis C Antibody Test

(starting at $219)

Evaluate immunity to hepatitis C.


Triple Hepatitis Package

(starting at $549)

Test for immunity to hepatitis A, B, and C in one go.


MMR Titer

(starting at $249)

Check immunity to measles, mumps, and rubella.


Varicella Titer

(starting at $189)

Confirm immunity to Chickenpox (varicella virus).


Triple Antibody Package

(starting at $595)

Detect antibodies for hepatitis B, MMR, and varicella.


Total Antibody Package

(starting at $895)

Comprehensive antibody testing for hepatitis A, B, C, MMR, and varicella.


Search for Antibody Test By City, State, or ZIP

Overview of Vermont Regulations

Vermont Antibody Testing Regulations

The state of Vermont generally does not require vaccinations for adults and there are no Vermont titer test regulations requiring antibody testing for any disease. However, the Vermont Department of Health adheres to the adult vaccination recommendations provided by the U.S. Centers for Disease Control and Prevention (CDC).

Depending on your age and circumstances, the following vaccinations may be recommended:

Shingles (zoster)
Human papillomavirus (HPV)
Measles, mumps, rubella (MMR)
Varicella (chickenpox)

In addition, it's recommended that adults receive an annual influenza vaccination and a Tdap or Td booster every 10 years. If you have a Vermont titer test showing that you have immunity to certain diseases, such as varicella, you would be exempt from the vaccination recommendation.

Vermont's Immunization Rule requires that, unless they have a legal medical or religious exemption, all undergraduate students enrolled in colleges and universities in the state must have the following vaccinations before enrolling:

Hepatitis B
Meningococcal ACWY (1st-year dormitory residents only)

Vermont antibody test regulations allow students to submit a positive titer test for Hepatitis B, MMR, or varicella in lieu of vaccination records. Many Vermont colleges and universities now also require COVID-19 vaccination.

The Vermont Department of Labor has stated that employers have the legal authority to mandate COVID-19 vaccinations as a condition of employment and may legally fire employees for failing to comply. In addition, although an employer may allow medical and religious exemptions, they are not required to do so.

It should be noted that the U.S. Equal Employment Opportunity Commission (EEOC) has issued a statement notifying employers that requiring COVID-19 antibody tests as a condition of employment is a violation of the Americans with Disability Act (ADA). As such, there are no federal or Vermont titer test regulations allowing employers to mandate COVID-19 antibody tests.

Vermont Antibody Industry Regulations

The state of Vermont requires employers to offer a no-cost hepatitis B vaccine and vaccine series to all employees who have occupational exposure. However, employees are not required to accept this offer.

With the exception of COVID-19 vaccinations for state employees, the state of Vermont does not mandate healthcare worker vaccinations. There are also no Vermont antibody test regulations for employees working in the healthcare field.

Vermont Governor Phil Scott has announced that as of September 15, 2021, all state employees are required to receive a COVID-19 vaccination. This expanded the previous mandate, which only required the vaccine for employees who work in psychiatric hospitals, veterans' homes, and correctional facilities.

Relevant Vermont Laws, Acts, and Legislation

VT. Code R. 13-140-042 – requires employers to offer a no-cost hepatitis B vaccine and vaccine series to all employees with occupational exposure.
18 V.S.A. § 1123 – requires students (including undergraduate students enrolled in colleges and universities) to have immunizations unless a legal medical or religious exemption applies.

Frequently Asked Questions

Does Vermont require you to test?

There are no Vermont antibody test rules requiring the submission of titer tests for any disease, for any reason. However, when allowed, individuals who have immunity may submit a titer test in lieu of vaccination records.

What is an antibody titer score?

To produce an antibody titer score, a person's serum is diluted and then retested for antibodies. If antibodies can still be detected, then the serum is diluted and then tested again. This process is repeated until the person's serum has been diluted as much as possible, but the presence of antibodies can still be detected.

What do titer tests test for?

A titer test is a blood test that is used to detect the presence of antibodies in the blood. The purpose of a titer test is to determine if a person has immunity against certain diseases. These results can be used to provide employers with proof of immunity, or to determine if a person needs to receive a certain vaccine.

What does a positive titer test mean?

If titer test results show that a person is positive, this may indicate that the individual has previously been infected with the disease or vaccinated against it. The individual may be presumed to have immunity against that specific disease, and vaccination may not be required at this time.


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"Immunizations Required by Vermont Law." Middlebury College,
Davis, Elizabeth. "Vermont COVID-19 Vaccine Scheduling, Restrictions & Next Steps." GoodRX Health, 20 December 2021,
Murray, Elizabeth. "Gov. Phil Scott expands COVID-19 vaccine requirements to all state employees." Burlington Free Press, 9 September 2021,
"Immunizations for Adults." Vermont Department of Health,
"Vaccines." Centers for Disease Control and Prevention (CDC),
"College Immunization Exemption." Vermont Department of Health,
"Employer Vaccine Mandates and UI." State of Vermont Department of Labor,
"What You Should Know About COVID-19 and the ADA, the Rehabilitation Act, and Other EEO Laws." U.S. Equal Employment Opportunity Commission (EEOC), 14 December 2021,
"Vermont Department of Health Immunization Regulations." Colchester School District,
"State Immunization Laws for Healthcare Workers and Patients, Centers for Disease Control and Prevention (CDC),