Table 1.
Evidence of Immunity for Required Vaccinations in 2011–2012 Accepted by Schools with ≥1 Vaccination Requirements for Students (n= 1,947)
| Forms of Evidence of Immunity, % (95% CI)a | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Immunity requirement |
No. of schools with requirement |
≥1 ACIP- recommended forms of evidence |
Provider-signed immunization certificate |
Laboratory evidence |
Provider- verified disease history |
Birth before 1957 |
Nonverified disease history |
Student self- report of vaccination |
≥1 Non ACIP- recommended form of evidence |
| n | |||||||||
| Measles | 1,859 | 99 (98–99) | 84 (82–86) | 71 (69–74) | 29 (26–31) | 21 (19–23) | 7 (6–8) | 3 (2–4) | 9 (8–11) |
| Mumps | 1,832 | 99 (98–99) | 84 (82–86) | 71 (68–73) | 28 (26–30) | 20 (18–22) | 7 (6–8) | 4 (3–4) | 9 (8–11) |
| Rubella | 1,859 | 98 (97–98) | 83 (81–85) | 72 (70–75) | 27 (25–29) | 19 (17–21) | 6 (5–7) | 3 (2–4) | 30 (28–32) |
| Varicella | 1,556 | 98 (97–98) | 78 (76–80) | 76 (74–78) | 37 (34–39) | ... | 13 (11–15) | 8 (7–10) | 18 (16–20) |
| Hepatitis B | 1,768 | 97 (96–98) | 85 (83–86) | 72 (69–74) | 19 (17–20) | ... | 4 (3–5) | 4 (3–4.) | 22 (20–24) |
| Pertussis | 1,006 | 92 (90–93) | 92 (90–93) | 35 (32–38) | 16 (14–19) | ... | 4 (3–5) | 3 (2–4) | 42 (39–45) |
| Influenza | 634 | 90 (87–92) | 90 (87–92) | 29 (25–33) | 15 (12–17) | ... | 3 (2–4) | 4 (2–5) | 37 (33–40) |
NOTE. ACIP, Advisory Committee on Immunization Practices; CI, confidence interval.
a
Weighted percentages. Denominator is the number of schools with vaccination requirement and accepting at least one form of evidence; shaded cells indicate ACIP accepted forms of evidence for each vaccine. The non–ACIP-recommended evidence column shows the proportion of schools accepting at least one of the types of immunity in the nonshaded cells for the vaccine specified. Provider-diagnosed disease is no longer recommended for measles and mumps by the ACIP as of 2011.26