A Clinician’s Handbook for Childhood & Adult Immunizations in Georgia

Recommended & Minimum Ages & Intervals

Recommended and minimum ages and intervals between vaccine doses(a),(b),(c),(d)

Vaccine and dose numberRecommended age for this doseMinimum age for this doseRecommended interval to next doseMinimum interval to next dose
DTaP-1(e)2 months6 weeks8 weeks4 weeks
DTaP-24 months10 weeks8 weeks4 weeks
DTaP-36 months14 weeks6-12 months(f)6 months(f)
DTaP-415-18 months15 months(f)3 years6 months
DTaP-5(g)4-6 years4 years
HepA-1(e)12-23 months12 months6-18 months6 months
HepA-2≥18 months18 months
HepB-1(h)BirthBirth4 weeks-4 months4 weeks
HepB-21-2 months4 weeks8 weeks-17 months8 weeks
HepB-3(i)6-18 months24 weeks
Hib-1(j)2 months6 weeks8 weeks4 weeks
Hib-24 months10 weeks8 weeks4 weeks
Hib-3(k)6 months14 weeks6-9 months8 weeks
Hib-412-15 months12 months

Recommended and minimum ages and intervals between vaccine doses(a),(b),(c),(d)

Vaccine and dose numberRecommended age for this doseMinimum age for this doseRecommended interval to next doseMinimum interval to next dose
HPV-1 (Two Dose Series) (l)11-12 years9 years6 months5 months
HPV-211-12 years (+6 months)9 years + 5 months(m)
HPV-1(n) (Three Dose Series)11-12 years9 years1-2 months4 weeks
HPV-211-12 years (+1-2 months)9 years (+4 weeks)4 months12 weeks(n)
HPV-3(n)11-12 years (+6 months)9 years (+5 months)
Influenza, inactivated(o)≥6 months6 months(p)4 weeks4 weeks
IPV-1(e)2 months6 weeks8 weeks4 weeks
IPV-24 months10 weeks8 weeks-14 months4 weeks
IPV-36-18 months14 weeks3-5 years6 months
IPV-4(q)4-6 years4 years
LAIV(o)2-49 years2 years4 weeks4 weeks
MenACWY-1(r)11-12 years2 months (s)4-5 years8 weeks
MenACWY-216 years11 years (+8 weeks)(t)
MenB-1Healthy adolescents: 16-23 years16 yearsBexsero: 4 weeks Trumenba: 6 months(c)Bexsero: 4 weeks Trumenba: 6 months(c)
MenB-1Persons at increased risk: ≥10 years10 yearsBexsero: 4 weeks Trumenba: 1-2 months(c)Bexsero: 4 weeks Trumenba: 1 month
MenB-2Healthy adolescents: 16-23 years (+1 month)16 years (+1 month)
MenB-2Persons at increased risk: ≥10 years (+1 month)10 years (+1 month)Bexsero: — Trumenba: 4-5 months (c)Bexsero: — Trumenba: 4 months(c)
MenB-3(u)Persons at increased risk: ≥10 years (+ 6 months(c))10 years (+ 6 months(c))
MMR-1(v)12-15 months12 months3-5 years4 weeks
MMR-2(v)4-6 years13 months
PCV13-1(j)2 months6 weeks8 weeks4 weeks
PCV13-24 months10 weeks8 weeks4 weeks
PCV13-36 months14 weeks6 months8 weeks
PCV13-412-15 months12 months
PPSV-12 years5 years5 years
PPSV-2(w)7 years
Rotavirus-1(x)2 months6 weeks8 weeks4 weeks
Rotavirus-24 months10 weeks8 weeks4 weeks
Rotavirus-3(x)6 months14 weeks
Td11-12 years7 years10 years5 years
Tdap(y)≥11 years7 years
Varicella-1(v)12-15 months12 months3-5 years12 weeks(z)
Varicella-2(v)4-6 years15 months(aa)
RZV - 1≥50 years50 years(bb)2-6 months4 weeks
RZV - 2≥50 years (+ 2-6 months)50 years

Abbreviations

DTaP = diphtheria and tetanus toxoids and acellular pertussis; HepA = hepatitis A; HepB = hepatitis B; Hib = Haemophilus influenzae type b; HPV = human papillomavirus; IPV = inactivated poliovirus; LAIV = live, attenuated influenza vaccine; MenACWY = quadrivalent meningococcal conjugate vaccine; MenB = serogroup B meningococcal vaccine; MenB-4C = Bexsero; MenB-FHbp = Trumenba; MMR = measles, mumps, and rubella; MMRV = measles, mumps, rubella, and varicella; MPSV4 = quadrivalent meningococcal polysaccharide vaccine; PCV13 = pneumococcal conjugate vaccine; PPSV23= pneumococcal polysaccharide vaccine; PRP-OMP = polyribosylribitol phosphate-meningococcal outer membrane protein conjugate; RZV = recombinant zoster vaccine; Td = tetanus and diphtheria toxoids; Tdap = tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis.

(a) Combination vaccines are available. Use of licensed combination vaccines is generally preferred to separate injections of their equivalent component vaccines. When administering combination vaccines, the minimum age for administration is the oldest age for any of the individual components. The minimum interval between doses is equal to the greatest interval of any of the individual components.

(b) Information on travel vaccines, including typhoid, Japanese encephalitis, and yellow fever, is available at https://.cdc.gov/travel. Information on other vaccines that are licensed in the United States but not distributed, including anthrax and smallpox, is available at http://emergency.cdc.gov/bioterrorism/ .

(c) “Months” refers to calendar months.

(d) Within a number range, a hyphen (-) should be read as “through.”

(e) Combination vaccines containing the hepatitis B component are available (see Table 3-2). These vaccines should not be administered to infants aged <6 weeks because of the other vaccine components (i.e., Hib, DTaP, HepA, and IPV).

(f) The minimum recommended age for DTaP-4 is 15 months, with a recommended 6 months from DTaP-3 (the recommended interval between DTaP-3 and DTaP-4 is 6 months). However, DTaP4 need not be repeated if given on or after 12 months of age and at least 4 months after DTaP-3. The 4-day grace period can be applied when validating past doses and can be applied to the minimum age of 12 months and the minimum interval of 4 months between DTaP-3 and DTaP-4. The 4-day grace period can be used when planning doses ahead of time, but should be applied to the minimum age of 15 months and the minimum interval between DTaP-3 and DTaP-4 of 6 months.

(g) If a fourth dose of DTaP is given on or after the fourth birthday, a fifth dose is not needed if the interval between the third dose and fourth dose is at least 6 months.

(h) Adjuvanted Hepatitis B vaccine (HepB-CgG) can be administered to adults 18 years old and older on a two dose schedule, the first and second dose separated by 4 weeks.

(i) HepB-3 should be administered at least 8 weeks after HepB-2 and at least 16 weeks after HepB-1 and should not be administered before age 24 weeks.

(j) For Hib and PCV13, children receiving the first dose of vaccine at age ≥7 months require fewer doses to complete the series.

(k) If PRP-OMP (Pedvax-Hib, Merck Vaccine Division) was administered at ages 2 and 4 months, a dose at age 6 months is not necessary. The final dose has a minimum age of 12 months.

(l) A two-dose schedule of HPV vaccine is recommended for most persons beginning the series between 9 through 14 years of age. See HPV vaccine-specific recommendations for details. www.cdc.gov/mmwr/volumes/65/wr/pdfs/mm6549a5.pdf

(m) If a patient is eligible for a 2-dose HPV series, and the second dose is given less than four weeks after the first dose, it is an invalid dose. Administer another dose 6-12 months after the first dose. If the second dose is given less than five months after the first dose, but more than four weeks after the first dose, the next dose should be administered at least 12 weeks after the second dose, and at least 6-12 months after the first dose. The 4-day grace period may be used. If the third dose was administered before December 16, 2016, and was administered 12 weeks after the 2nd dose, and 16 weeks after the first dose, it is a valid dose. The 4-day grace period may be used. If the third dose was administered on or after December 16, 2016, and was administered 12 weeks after the 2nd dose and 5 months after the first dose, it is a valid dose. The 4-day grace period may be used.

(n) The minimum age for HPV-3 is based on the baseline minimum age for the first dose (i.e., 9 years) and the minimum interval of 5 months between the first and third dose. If the third dose was administered before December 16, 2016, and was administered 12 weeks after the 2nd dose, and 16 weeks after the first dose, it is a valid dose. The 4- day grace period may be used. If the third dose was administered on or after December 16, 2016, and was administered.

(o) One dose of influenza vaccine per season is recommended for most persons. To determine which children younger than 9 years should receive 2 doses in a single season, please see influenza vaccine-specific recommendations (82).

(p) The minimum age for inactivated influenza vaccine varies by vaccine manufacturer. See package insert for vaccine-specific minimum ages.

(q) A forth dose is not needed if the third dose was administed ≥4 years and at least 6 months after the previous dose.

(r) Revaccination with meningococcal vaccine is recommended for previously vaccinated persons who remain at high risk for meningococcal disease (47).

(s) MenACWY-D (Menactra) can be given as young as 9 months for high-risk persons. MenACWY-CRM (Menveo) can be given as young as 2 months for high-risk persons. Hib-MenCY can be given as young as 6 weeks for high-risk persons. Hib-MenCY is given as a 4-dose series at 2 months, 4 months, 6 months and 12-18 months. MenACWY-TT (MenQuadfi) can be given as young as 2 years for high-risk persons.

(t) For routine non-high risk adolescent vaccination, the minimum age for the booster dose is 16 years.

(u) This dose is not necessary if Bexsero is correctly administered, or if Trumenba is correctly administered to healthy adolescents.

(v) Combination MMRV vaccine can be used for children aged 12 months-12 years. See text for details.

(w) A second dose of PPSV23 5 years after the first dose is recommended for persons aged ≤65 years at highest risk for serious pneumococcal infection and those who are likely to have rapid decline in pneumococcal antibody concentration (61).

(x) The first dose of rotavirus must be administered at age 6 weeks through 14 weeks and 6 days. the vaccine series should not be started for infants aged ≥15 weeks, 0 days. Rotavirus should not be administered to children oldeer than 8 months, 0 days of age regardless of the number of doses received between 6 weeks and 8 months, 0 days of age. If 2 doses of Rotarix (GlaxoSmithKline) are administered as age appropriate, a third dose is not necessary.

(y) Only 1 dose of Tdap is recommended. Subsequent doses should be given as Td or Tdap. For management of a tetanus-prone wound in persons who have received a primary series of tetanus-toxoid–containing vaccine, the minimum interval after a previous dose of any tetanus-containing vaccine is 5 years.

(z) A special grace period of 2 months, based on expert opinion, can be applied to the minimum interval of 3 months, when evaluating records retrospectively, which results in an acceptable minimum interval of 4 weeks. An additional 4 days should not be added on to this grace period.

(aa) A special grace period of 2 months, based on expert opinion, can be applied to the minimum age of 15 months when evaluating records retrospectively, which results in an acceptable minimum age of 13 months. An additional 4 days should not be added on to this grace period.

(bb) If a 1st dose of recombinant zoster vaccine is administered to someone 18 – 49 years of age, the dose does not need to be repeated. A 4-day grace period can be added to the absolute minimum age of 18 years when evaluating records retrospectively.

Known as the “grace period”, vaccine doses administered 4 days before the minimum interval or age are considered valid; however, local or state mandates might supersede this 4-day guideline

“3 calendar months” (or fewer) can be converted into weeks per the formula “1 month = 4 weeks”