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STATE OF CONNECTICUT
DEPARTMENT OF PUBLIC HEALTH
IMMUNIZATION REQUIREMENTS FOR ENROLLED
STUDENTS IN CONNECTICUT SCHOOLS
2019-2020 SCHOOL YEAR
PRESCHOOL
DTaP: 4 doses (by 18 months for programs
with children 18 months of age)
Polio: 3 doses (by 18 months for programs
with children 18 months of age)
MMR: 1 dose on or after 1st birthday
Hep B: 3 doses, last one on or after 24
weeks of age
Varicella: 1 dose on or after 1st birthday or
verification of disease
Hib: 1 dose on or after 1st birthday
Pneumococcal: 1 dose on or after 1st birthday
Influenza: 1 dose administered each year between August 1st-December 31st
(2 doses separated by at least 28 days required for those receiving flu for
the first time)
Hepatitis A: 2 doses given six calendar months apart, 1st dose on or after 1st birthday
KINDERGARTEN
DTaP: At least 4 doses. The last dose must be given on or after 4th birthday
Polio: At least 3 doses. The last dose must be given on or after 4th birthday
MMR: 2 doses separated by at least 28 days, 1st dose on or after 1st birthday
Hep B: 3 doses, last dose on or after 24 weeks of age
Varicella: 2 doses separated by at least 3 months-1st dose on or after 1st birthday;
or verification of disease
Hib: 1 dose on or after 1st birthday for children less than 5 years old
Pneumococcal: 1 dose on or after 1st birthday for children less than 5 years old
Hepatitis A: 2 doses given six calendar months apart, 1st dose on or after 1st birthday
GRADES 1-6
DTaP/Td: At least 4 doses. The last dose must be given on or after 4th birthday.
Students who start the series at age 7 or older only need a total of 3
doses.
Polio: At least 3 doses. The last dose must be given on or after 4th birthday
MMR: 2 doses separated by at least 28 days, 1st dose on or after 1st birthday
Hep B: 3 doses, last dose on or after 24 weeks of age
Varicella: 2 doses separated by at least 3 months-1st dose on or after 1st birthday;
or verification of disease
Hepatitis A: 2 doses given six calendar months apart, 1st dose on or after 1st birthday
GRADE 7 Tdap/Td: 1 dose for students who have completed their primary DTaP series.
Students who start the series at age 7 or older only need a total of 3
doses of tetanus-diphtheria containing vaccine, one of which must be
Tdap
Polio: At least 3 doses. The last dose must be given on or after 4th birthday
MMR: 2 doses separated by at least 28 days, 1st dose on or after 1st birthday
Meningococcal: 1 dose
Hep B: 3 doses, last dose on or after 24 weeks of age
Varicella: 2 doses separated by at least 3 months-1st dose on or after 1st birthday;
or verification of disease
Hepatitis A: 2 doses given six calendar months apart, 1st dose on or after 1st birthday
Revised 1/3//2019
GRADES 8-12 Tdap/Td: 1 dose for students who have completed their primary DTaP series.
Students who start the series at age 7 or older only need a total of 3
doses of tetanus-diphtheria containing vaccine, one of which must be
Tdap
Polio: At least 3 doses. The last dose must be given on or after 4th birthday
MMR: 2 doses separated by at least 28 days, 1st dose on or after 1st birthday
Meningococcal: 1 dose
Hep B: 3 doses, last dose on or after 24 weeks of age
Varicella: 2 doses separated by at least 3 months-1st dose on or after 1st birthday;
or verification of disease
DTaP vaccine is not administered on or after the 7th birthday.
Tdap can be given in lieu of Td vaccine for children 7 years and older unless contraindicated.
Hib is required for all Pre-K and K students less than 5 years of age.
Pneumococcal Conjugate is required for all Pre-K and K students less than 5 years of age.
Hep A requirement for school year 2019-2020 applies to all Pre-K through 7th graders born 1/1/07 or later.
Hep B requirement for school year 2019-2020 applies to all students in grades K-12.
Spacing intervals for a valid Hep B series: at least 4 weeks between doses 1 and 2; 8 weeks between doses
2 and 3; at least 16 weeks between doses 1 and 3; dose 3 must be administered at 24 weeks of age or later.
Second MMR for school year 2019-2020 applies to all students in grades K-12.
Meningococcal Conjugate requirement for school year 2019-20 applies to all students in grades 7-12
Tdap requirement for school year 2019-2020 applies to all students in grades 7-12
If two live virus vaccines (MMR, Varicella, MMRV, Intra-nasal Influenza) are not administered on the same day,
they must be separated by at least 28 days (there is no 4 day grace period for live virus vaccines). If they are not
separated by at least 28 days, the vaccine administered second must be repeated.
Lab confirmation of immunity is only acceptable for Hep A, Hep B, Measles, Mumps, Rubella, and Varicella.
VERIFICATION OF VARICELLA DISEASE: Confirmation in writing by a MD, PA, or APRN that the child has a
previous history of disease, based on family or medical history.
For the full legal requirements for school entry visit:
https://portal.ct.gov/DPH/Immunizations/Immunization--Laws-and-Regulations
If you are unsure if a child is in compliance, please call the Immunization Program at (860) 509-7929.
New Entrant Definition:
*New entrants are any students who are new to the school district, including all preschoolers and all students coming in
from Connecticut private, parochial and charter schools located in the same or another community. All pre-schoolers,
as well as all students entering kindergarten, including those repeating kindergarten, and those moving from any
public or private pre-school program, even in the same school district, are considered new entrants. The one exception
is students returning from private approved special education placements–they are not considered new entrants.
Commonly Administered Vaccines:
Vaccine: Brand Name: Vaccine: Brand Name:
DTaP-IPV-Hib Pentacel MMRV ProQuad
DTaP-HIB TriHibit PCV7 Prevnar
HIB-Hep B Comvax PCV13 Prevnar 13
DTaP-IPV-Hep B Pediarix DTaP-IPV Kinrix, Quadracel
Hepatitis A Havrix, Vaqta Influenza Fluzone, FluMist, Fluviron, Fluarix, FluLaval
Flucelvax, Afluria
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