NY Immunization Records 2026: Portal, Phone & Email Options

New York · NYSIIS · NYC CIR · portal, phone & email routes

Retrieve the Right New York Vaccine Record Without Using the Wrong Registry

New York uses two major immunization registries. Vaccinations administered in New York City are reported through the Citywide Immunization Registry, called CIR, while vaccinations administered elsewhere in New York State are generally reported to the New York State Immunization Information System, called NYSIIS.

This guide shows the resident-facing route for each system, how NYC My Vaccine Record works, how parents recover children’s records, what adults should do when histories are incomplete, which phone and email options fit each problem, and how to recover missing, old, pharmacy, school, out-of-state and foreign records.

Protect your identity: Do not send this website your vaccine card, Social Security number, photo ID, driver’s-license number, IDNYC number, birth certificate, child’s private information, QR code, portal password or complete immunization history. Use only the official New York State, NYC Health, healthcare-provider, pharmacy or school route handling your actual record.
NYC registry

CIR — Citywide Immunization Registry.

Outside NYC

NYSIIS — New York State Immunization Information System.

NYC public portal

My Vaccine Record.

NYS public help

518-473-4437 · immunize@health.ny.gov.

NYC public help

311 · 212-639-9675.

Choose your New York immunization-record task

Start with the route that matches where the vaccination was administered and what is wrong with the record.

First decision

NYC CIR or NYSIIS? Choose before searching

Five boroughs Vaccination administered in NYC

Start with the Citywide Immunization Registry and My Vaccine Record when the vaccine was administered in:

  • Manhattan.
  • Brooklyn.
  • Queens.
  • The Bronx.
  • Staten Island.
Rest of New York State Vaccination administered outside NYC

Start with NYSIIS-related sources when the vaccine was administered in places such as:

  • Long Island.
  • Westchester.
  • Hudson Valley.
  • Albany / Capital Region.
  • Buffalo / Western NY.
  • Rochester.
  • Syracuse / Central NY.
  • Other NY counties outside NYC.
Do not choose based only on where you live today. New York’s reporting rule is based on where the immunization was administered. Someone who lives in Queens but receives a vaccine in Westchester can have that dose reported to NYSIIS; someone living on Long Island who is vaccinated in Manhattan can have the dose reported to CIR.
New York-specific rule

Where the shot was given matters more than your current address

Use vaccination location to choose the first registry route
Situation First registry route What to do
Lives in NYC, vaccinated in NYC CIR Try My Vaccine Record.
Lives outside NYC, vaccinated outside NYC NYSIIS Ask provider, local health department or another authorized source.
Lives in NYC, vaccinated in Westchester NYSIIS Start with the Westchester/provider/NYSIIS-related route.
Lives in Nassau County, vaccinated in Manhattan CIR Check the NYC provider and My Vaccine Record.
Vaccinated in both systems Both Search both routes and compare the histories.
Vaccinated in another state That state’s IIS Retrieve the outside record separately.
Historical records can cross systems. A NYC provider can enter documented historical doses from outside the city into CIR, and authorized providers can add appropriate historical information to NYSIIS. Still, do not assume every cross-system dose has already transferred.
New York State outside NYC

How to retrieve NYSIIS immunization records as a resident

NYSIIS is a secure registry used outside New York City. It is not a universal consumer portal where every New York resident creates an account and downloads a lifetime record.

Contact the healthcare provider first Ask the doctor, pediatrician, hospital clinic or medical practice to print the complete immunization history and check NYSIIS.
Check the administering pharmacy For a recent adult vaccination, the pharmacy’s own record may be the fastest proof.
Ask your county or local health department Local public-health departments are an official route for parents and can be especially useful for public-clinic or childhood records.
Ask a previous school or college A school may already have the immunization certificate or registry printout you submitted.
Use NYSDOH for routing help Contact the Division of Vaccine Excellence when provider/local routes do not solve the problem.
Save the complete recovered record Keep a secure PDF and a paper copy rather than rebuilding the history for every future request.
Common search mistake

NYSIIS login is not the normal resident record-download route

Patient, parent or guardian
  • Ask your provider.
  • Ask the local health department.
  • Check school/college files.
  • Check pharmacy records.
  • Contact NYSDOH for routing help.
Authorized professional user
  • Uses Health Commerce System access.
  • Has an individual NYSIIS account.
  • Uses system access for approved professional functions.
  • Technical Help Desk support is for authorized system access.
Resident warning: Searching “NYSIIS login” can take you to provider-facing Health Commerce System tools. That is not a shortcut to create a personal NYSIIS account.
Parents outside NYC

How parents can obtain a child’s NYSIIS record

New York’s NYSIIS guidance says parents and guardians can obtain a child’s record through the child’s healthcare provider, local public-health department, or NYSDOH record route.

Ask the child’s current provider Request the complete immunization history, not only the most recent visit summary.
Ask whether historical doses are present Compare childhood doses from previous doctors with the current NYSIIS printout.
Use the local health department if needed This is an official parent/guardian recovery route.
Check school records School documentation may provide the fastest backup when the provider changed or closed.
Call the family hotline for routing support when appropriate New York’s Growing Up Healthy Hotline includes immunization information and referral.
New York City public portal

How to retrieve NYC immunization records with My Vaccine Record

Open the official My Vaccine Record portal Confirm you are on the NYC Health service before entering identity information.
Complete the certification Follow the site’s statements concerning whose record you are authorized to view.
Choose yourself or your child Adults can access their own eligible record; child access depends on the parent/guardian relationship stored in CIR.
Choose a matching identity method Use IDNYC, NYS DMV driver/non-driver ID, mobile phone or email.
Review the result carefully Check the patient’s name, DOB and vaccine dates.
Download the official PDF My Vaccine Record provides an official immunization report when the record is found.
Save all SMART Health Card QR codes if you need the digital format A record with many vaccinations may generate more than one QR code.
Escalate instead of repeatedly guessing Use Record Assistance if the correct information does not produce the expected record.
Identity matching

My Vaccine Record currently supports four lookup routes

IDNYC

Use the IDNYC number when that is your preferred supported identity route.

NYS DMV ID

The portal supports a New York State driver or non-driver license number.

Mobile phone

Try the primary mobile number connected to the CIR record.

Email

Use the email address most likely reported by the healthcare provider.

No match? Think historically. A previous mobile number, old email, former surname or provider-entered spelling can explain why current details do not match.
NYC parents and guardians

How to get a child’s CIR immunization record

My Vaccine Record can provide a child’s record when the requester is properly connected to the child’s CIR information.

Child’s exact legal name
Correct date of birth
Requester listed on birth certificate or CIR record
Parent/guardian relationship correct
Primary contact information current
Phone/email reported by pediatrician checked
Future access tip: NYC Health advises parents to ask the child’s healthcare provider to update or confirm parent/guardian contact information in CIR whenever the child receives vaccines.
Pediatrician script “I cannot retrieve my child’s record through My Vaccine Record. Please confirm that I am listed correctly as the parent or guardian/primary contact in CIR and verify that the child’s immunization history has been reported.”
Adult records

Why adult NY immunization records are often less complete

Outside NYC

Immunizations received before age 19 remain in NYSIIS. Vaccinations administered at age 19 or older may be added with the adult’s consent.

New York City

NYC providers must report child immunizations. Adult vaccinations may be reported with consent, so some adult histories can be incomplete.

NYC historical limitation: My Vaccine Record currently warns that immunization histories for people born in NYC before 1995 may not contain complete information.

Adult backup sources

Primary-care provider
Former physician
Hospital patient portal
Pharmacy history
College health office
Previous school
Employer occupational health
Military records
VA records
Previous state IIS
A missing adult registry record does not prove the vaccination never happened. Check the administering provider, pharmacy and older documentation before drawing conclusions from an online search.
Troubleshooting

Why a New York vaccine record may be missing

Wrong registry The dose may belong in CIR rather than NYSIIS, or vice versa.
Former surname A maiden or previous legal name may be stored.
Old phone or email NYC identity matching may depend on historical provider information.
Parent/guardian mismatch The current requester may not be linked properly to the child’s CIR profile.
Provider reporting gap The clinical chart may contain a dose that never reached the registry.
Adult consent history Older adult doses may not have been reported.
Out-of-state dose Another state’s registry may hold the vaccination.
Federal record Military, VA or another federal system may be the source.
Foreign record The dose may exist only on an original overseas document.
Paper-only history Older childhood records may exist only with family, school or a closed practice.

Use this recovery order

Identify where the vaccination was administered Decide whether the first search belongs in CIR, NYSIIS, another state or another country.
Ask the original provider or pharmacy Request the complete clinical immunization record.
Check previous schools and colleges They may already hold official documentation.
Try historical names and contact information Use real details associated with the original vaccination record.
Use the official registry escalation NYC: Record Assistance. Outside NYC: provider/local health department/NYSDOH.
Search other states and federal systems separately Do not assume New York contains an interstate lifetime history.
NYC escalation

My Vaccine Record failed? Use Record Assistance

Finish a normal My Vaccine Record attempt first Confirm that you used the likely matching identity method.
Open the official Record Assistance route Use the NYC Health workflow rather than sending identification through ordinary email.
Upload a valid photo ID through the official form NYC examples include government-issued ID, passport or another official photo ID.
Explain the record-access problem clearly Identify whether the issue is no record, incorrect information or another access problem.
Watch for the response NYC’s current public pages describe online assistance as normally responding within roughly a few business days.
If CIR contains no immunizations, contact the provider Ask the healthcare provider to report the available immunization history and future vaccinations to CIR when appropriate.
Timing is an estimate, not a guarantee. NYC official pages currently use slightly different wording—roughly two business days on one page and two to three days on NYC311.
NYC mail fallback

What the NYC Immunization Record Request Application asks for

The current one-page CIR application collects detailed matching information for the person whose record is being requested.

Applicant information

First name
Middle name
Last name
Maiden name if applicable
Sex assigned at birth
Born in NYC: yes/no
Date of birth
Medicaid number if applicable
Phone number
Email address
Street address
Apartment number
City/state/ZIP
Birth hospital
Current healthcare provider
Provider phone number

Additional matching information

Mother’s first name
Mother’s last name
Mother’s maiden name
Mother’s date of birth
Requester relationship
Parent/guardian first name
Parent/guardian last name
Parent/guardian email
Signature
Date signed
Primary language

Photo identification

The form instructs mail requesters to attach a copy of valid photo identification such as an IDNYC card, driver’s license or passport.

Current CIR mailing address shown on the application
NYC Health Department
Citywide Immunization Registry
42-09 28th St.
Fifth Floor, CN-21
Long Island City, NY 11101-4132
Do not email the completed application. The current form explicitly instructs applicants not to email it.
Current form timing: the application states that a response will be provided within 10 business days. NYC311 describes mail/fax requests as taking roughly one to two weeks.
Correction workflow

Who should fix a wrong or incomplete NY immunization record?

Contact the source most capable of correcting the underlying problem
Problem Best first route What to request
Missing vaccination Administering provider/pharmacy Verify the original administration record and registry submission.
Wrong vaccination date Administering provider Compare registry entry with the source clinical record.
Wrong name or DOB Provider plus applicable registry help Correct demographic information at the source.
Child not accessible in My Vaccine Record Child’s provider Confirm parent/guardian/primary-contact data in CIR.
NYC no-match despite correct details Record Assistance Official identity and record review.
Adult dose missing outside NYC Provider/pharmacy Verify whether adult consent/reporting was documented.
Correction script “My New York immunization record is missing or incorrectly showing the [vaccine] administered around [date]. Please locate the original clinical administration record, verify my identifying information and check whether the dose was correctly reported to NYSIIS or CIR.”
Recent adult doses

Recover a missing vaccine from the pharmacy that administered it

Check the pharmacy account Use the profile associated with the original appointment.
Try historical phone/email information Older contact information can matter when account records are difficult to locate.
Ask for an immunization history Request the vaccination record, not only a purchase receipt.
Confirm the vaccine and exact administration date These details make registry troubleshooting easier.
Ask whether the dose was reported to NYSIIS or CIR The correct registry depends on where the pharmacy administered the vaccination.
Pharmacy script “I need the immunization record for vaccines administered by this pharmacy. Please provide the vaccine names and exact administration dates and confirm whether the doses were reported to NYSIIS or CIR.”
Moved to New York

Bring previous-state or foreign records into your New York healthcare history

Moved to NYC

Give your NYC healthcare provider a copy of previous immunization history and ask the provider to add appropriate historical information to CIR.

Moved outside NYC

Give your New York State provider the old record and ask whether the documented history is represented appropriately in NYSIIS.

Foreign record

Preserve the original vaccine names, dates, stamps and signatures. Ask the provider or receiving school how the documentation should be reviewed.

Do not convert foreign vaccine names or decide on repeat doses yourself. Give the original documentation to a qualified healthcare professional when medical interpretation is required.
Cross-state records

New York may not contain vaccines given in another state

Retrieve records from every state where vaccinations were administered rather than assuming NYSIIS or CIR contains an interstate lifetime history.

New Jersey

Cross-Hudson and border-area records are common. Check the New Jersey registry/provider route separately.

New Jersey immunization records guide

Connecticut

If a vaccination was administered in Connecticut, retrieve the Connecticut record separately.

Connecticut immunization records guide

Separate record systems

Military, VA and other federal vaccine histories

Military

Use the applicable military health-record or records-request system for vaccinations administered through military care.

Veterans Affairs

Check the VA health-record route for vaccinations administered through VA care.

Other federal facilities

Contact the agency or facility that administered the vaccination when the dose cannot be found in New York’s registry.

Missing from NYSIIS/CIR does not mean missing everywhere. Federal and military health systems can hold separate records.
School, daycare and PreK–12

What New York schools can use as immunization proof

Current NYSED guidance recognizes several forms of acceptable immunization documentation.

Examples of recognized school immunization documentation
Documentation Recognized route Important note
Provider-signed certificate Yes Should identify administered vaccine products and dates.
NYSIIS record Yes Official New York State registry documentation.
NYC CIR record Yes Official NYC registry documentation.
Certain qualifying laboratory/serologic proof In specified situations School and healthcare staff should apply current NY rules.
Another state’s official IIS Yes Useful for students who moved into New York.
Electronic health record Yes Must contain the needed immunization information.
Official foreign record Yes The school may review it under current state documentation rules.
Previous-school record Can be accepted Must contain the information required for an immunization certificate.
2026–27 materials are live. Use the current NYSDOH school-requirements page rather than copying a static vaccine-dose chart into a record-retrieval article.
Old school records

Your previous New York school may still have the record

Current NYSED recordkeeping guidance says a student’s individual immunization record must be retained for at least:

Minimum Six years

This is one minimum retention measure used for student immunization records.

Age rule Three years after age 18

Use whichever period is longer.

Older records may survive even longer. NYSED notes that schools may retain immunization documentation beyond the minimum because former students frequently need proof for college or employment.
School-record script “I previously attended your school and need a copy of my immunization record. Please check the cumulative health/education record and tell me the current process for obtaining a copy.”
School special situations

Do not assume every school record problem follows the standard enrollment route

Students in special circumstances

Current NYSED school guidance contains separate procedures for situations including students experiencing homelessness, students in foster care and refugee students.

Medical exemption

A medical exemption is a separate official process. A missing vaccine record does not itself create or prove a medical exemption.

If an enrollment deadline is involved, contact the school nurse/administrator and local health department immediately. Ask which documentation route applies to the student’s specific situation rather than relying only on a generic online checklist.
College and employment

Ask what proof is accepted before ordering anything medical

College

Follow the student-health portal and identify the exact vaccines/forms required.

Healthcare training

Ask the clinical coordinator which vaccine dates, provider records or qualifying laboratory evidence it accepts.

Employer

Ask occupational health whether it accepts NYSIIS/CIR, provider or pharmacy documentation.

Do not order titers or repeat vaccines based only on an internet article. First ask the receiving organization what documentation it accepts, then discuss any medical testing or vaccination decision with a qualified healthcare professional.
NYC digital records

My Vaccine Record PDF and SMART Health Card options

NYC My Vaccine Record can provide both a downloadable PDF immunization report and supported SMART Health Card QR codes.

Apple devices

Supported vaccination QR records can be added through Apple Health; COVID-19 QR information can also be added to Apple Wallet when supported.

Android devices

NYC provides CommonHealth instructions for saving supported SMART Health Card information.

More than one QR code may appear. If the record contains enough vaccination information, My Vaccine Record may generate multiple QR codes. Save each required code.
A vaccine QR code contains personal health information. Do not publish it on social media or share it with organizations that do not need access.

For a focused COVID-record workflow, see the COVID-19 vaccine record guide.

Older records

Recover immunization records when the original doctor closed

Call the old practice number A message may identify a successor provider or medical-record custodian.
Contact the affiliated hospital or medical group Ask whether the old charts were transferred.
Contact former schools The immunization record may still be retained in the student’s file.
Check colleges and employers that previously required proof They may hold a copy even when the medical practice no longer exists.
Search NYSIIS/CIR and other-state registries Rebuild the history from all available official sources.
Check family paper files Old yellow cards, baby books and prior school forms can contain useful documentation.
Never invent missing administration dates. If documentation cannot be recovered, present the available records to the healthcare professional or organization requesting proof.
Portal, phone & email options

New York immunization-record contact decision table

Use the contact designed for your actual problem
Need Current contact Best use
General NYS immunization help outside NYC 518-473-4437
immunize@health.ny.gov
Division of Vaccine Excellence questions and public routing.
NYSIIS program/policy question 518-473-2839
nysiis@health.ny.gov
NYSIIS program/policy questions.
NYSIIS technical user problem 866-389-0371
nysiishelpdesk@gainwelltechnologies.com
Authorized-user NYSIIS account/system support, not routine patient record retrieval.
Family/child resource routing 800-522-5006 Growing Up Healthy information/referral, including immunization resources.
NYC public vaccine-record help 311
212-639-9675
Public record questions, mailed-form help and NYC routing.
NYC immunization/CIR general help 347-396-2400 NYC immunization/CIR questions and routing.
My Vaccine Record questions cir-records@health.nyc.gov Questions about My Vaccine Record access.
Urgent NYC record need after normal route fails NYCvaxrecord@health.nyc.gov Explain why the request is urgent; do not include personal identifying information in ordinary email.
NYC provider reporting help 866-692-3641 Provider Access Line when a healthcare professional needs reporting help.
NYSIIS technical Help Desk hours: the current state contact page lists Monday–Friday, 8 a.m.–5 p.m. NYSIIS program staff hours are listed as Monday–Friday, 8:30 a.m.–4:45 p.m.
Growing Up Healthy hours: the current NYSDOH hotline page lists Monday–Friday, 8:30 a.m.–4:30 p.m.
NYC email privacy: NYC Health says not to send personal identifying information through ordinary email. Use email to ask for routing or explain urgency, then follow the secure process supplied by NYC Health.
Ready-to-use scripts

What to say when calling about a New York vaccine record

Outside NYC “I am trying to locate an immunization record for [myself/my child]. The vaccines were administered in [county/city] around [years]. I already checked [provider/pharmacy/school]. What is the correct NYSIIS-related or local health department route for obtaining the record?”
NYC no-match “I already tried My Vaccine Record using the identity information connected to the record, but I still cannot access it. What is the correct Record Assistance process? I will provide identification only through the secure method you specify.”
Missing dose “My immunization record is missing the [vaccine] administered by your organization around [date]. Please locate the original administration record and confirm whether it was reported to NYSIIS or CIR.”
Old school record “I previously attended your school and need a copy of my immunization record for [college/work/personal records]. Please check whether the record is still retained and tell me the process for requesting a copy.”
Before you call

Prepare this record-recovery worksheet

Current legal first/last name
Former or maiden name
Hyphenated-name version
Date of birth
Current phone number
Old phone numbers
Current email
Old email addresses
IDNYC if using NYC portal
NYS DMV ID if using NYC portal
Parent/guardian details
Provider names
Pharmacy names
Approximate vaccination dates
Location where each vaccine was administered
Previous states/countries
Previous schools/colleges
Military/VA history
Reason the record is needed
Deadline
Focused related guides

Use another guide only when your history actually crosses jurisdictions

NYC-only recovery

Use the focused CIR guide when all relevant vaccines were administered in the five boroughs.

NYC immunization records

New Jersey doses

Use the New Jersey guide when part of the history was administered across the Hudson or elsewhere in NJ.

NJ immunization records

Connecticut doses

Use the Connecticut guide for records administered in Connecticut before moving to New York.

CT immunization records

Official sources

New York immunization-record links worth saving

NYSIIS

Official New York State immunization-registry information outside NYC.

Open NYSIIS information
NYSDOH Immunization

Current statewide Division of Vaccine Excellence information and public contact route.

Open NYSDOH immunization
My Vaccine Record

Public NYC CIR lookup for eligible adults, parents and guardians.

Open My Vaccine Record
NYC Vaccine Records

CIR record access, no-record guidance, mail request and contact routes.

Open NYC guidance
NYC311 Immunization Record

Record Assistance, mail/fax timing, corrections and emergency route.

Open NYC311
NYC paper application

Current Immunization Record Request Application.

Open application
2026–27 school requirements

Current NYSDOH school and daycare requirement materials.

Open school requirements
CDC IIS directory

Use when vaccinations were administered in another state.

Find another registry
Plain-English terms

NY immunization record glossary

NYSIIS
New York State Immunization Information System, the registry used for immunizations administered in New York State outside New York City.
CIR
Citywide Immunization Registry, the immunization registry used for New York City.
My Vaccine Record
NYC Health’s public portal for retrieving eligible CIR records.
HCS
Health Commerce System, the professional New York State system used by authorized organizations for services including NYSIIS access.
IDNYC
A New York City identification card whose number can be used as a My Vaccine Record lookup method.
Record Assistance
NYC’s official escalation route when My Vaccine Record does not return the expected record or information requires review.
SMART Health Card
A verifiable digital health-record format using QR codes; My Vaccine Record can provide supported vaccine records in this format.
Historical dose
A vaccination administered previously and documented from an earlier provider, registry or official record.
Before submitting the record

Final record-quality and privacy checklist

Correct person’s record
Legal name correct
DOB correct
Expected vaccines checked
Missing doses investigated
CIR/NYSIIS route checked
Pharmacy history checked when relevant
Out-of-state history checked
Previous schools checked when useful
Fresh official copy saved
Original PDF not edited
Receiving organization accepts the format
QR code kept private
Photo ID sent only through official route
No sensitive information emailed unnecessarily
Portal passwords remain private
Frequently asked questions

NY immunization records FAQs

How do I get my NY immunization records?

First determine where the vaccinations were administered. For vaccines administered outside New York City, start with the provider, local health department, school, pharmacy or NYSDOH/NYSIIS-related route. For vaccinations administered in the five boroughs, start with NYC My Vaccine Record and CIR.

Does where I live determine whether my record is in NYSIIS or CIR?

Not by itself. New York’s registry reporting is based primarily on where the vaccination was administered. A vaccination administered in NYC is reported to CIR; one administered elsewhere in New York State is reported to NYSIIS even if the patient’s home address is in the other jurisdiction.

Can I create a NYSIIS account and download my personal record?

NYSIIS direct system access is for authorized users through New York’s Health Commerce System. Patients and parents normally retrieve records through healthcare providers, local health departments, schools, pharmacies and NYSDOH record-support routes.

How do I get NYC immunization records online?

Use My Vaccine Record. The current portal supports eligible searches using an IDNYC number, NYS DMV driver or non-driver ID number, mobile phone or email address.

Why can’t My Vaccine Record find my record?

Common causes include an old phone number or email, former surname, incorrect demographic information, parent/guardian information not linked correctly, an adult vaccine that was not reported, a vaccination administered outside NYC or a provider reporting gap. Use Record Assistance when normal matching fails.

Can parents get a child’s New York immunization record?

Yes. Outside NYC, parents can obtain a child’s NYSIIS record through the provider, local health department or appropriate NYSDOH route. In NYC, My Vaccine Record can provide a child’s CIR record when the requester is properly linked as the parent, guardian, next of kin or primary contact.

What phone numbers and emails should I use for NY immunization-record help?

Outside NYC, general NYSDOH immunization help is available at 518-473-4437 and immunize@health.ny.gov; NYSIIS program questions use 518-473-2839 and nysiis@health.ny.gov. In NYC, public record help is available through 311 or 212-639-9675, and the NYC immunization/CIR line is 347-396-2400. Do not send sensitive identifying information through ordinary email.

Can NYSIIS or CIR records be used for school?

Yes. Current NYSED guidance recognizes NYSIIS and CIR records as acceptable immunization proof, along with other qualifying provider certificates, electronic health records, another state’s registry records, official foreign records and certain previous-school documentation.

How long do New York schools keep immunization records?

Current NYSED guidance states that individual student immunization records must be retained for at least six years or three years after the student reaches age 18, whichever period is longer.

What should I do if my old doctor closed or vaccines were given in another state?

Check the successor medical practice, affiliated health system, former schools, colleges, pharmacies, employer or military records and every state immunization registry where vaccinations were administered. Do not guess missing vaccination dates.