Health Immunization: Rules
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The following Health Immunization rules are evaluated by the PowerSchool Health rules engine to comply with the state's guidelines. The vaccination rules vary depending upon when the student first entered an Idaho school.
- A month is calculated as four weeks with seven days each (4*7 = 28 days)
- A four-day grace period is considered with each minimum age and time interval
- For example, if the time interval between two doses is four weeks or one month, the actual interval is 24 days: [28 days (one month) with 4-day grace period = 24 days)]
Compliance Rules
DTap
| Dose | Minimum Age for Dose | Minimum Interval for Next Dose |
|---|---|---|
DTaP Dose 1 | 6 Weeks | 4 Weeks |
DTaP Dose 2 | 10 Weeks | 4 Weeks |
DTaP Dose 3 | 14 Weeks | 6 Months |
DTaP Dose 4 | 15 Months | 6 Months |
DTaP Dose 5* | 4 Years | - |
If the fourth DTap dose is administered on or after the fourth birthday, then the fifth dose is not required.
Polio
| Dose | Minimum Age for Dose | Minimum Interval for Next Dose |
|---|---|---|
Polio Dose 1 | 6 Weeks | 4 Weeks |
Polio Dose 2 | 10 Weeks | 4 Weeks |
Polio Dose 3 | 14 Weeks | 6 Months |
Polio Dose 4* | 4 Years | - |
If the third Polio dose is administered on or after the fourth birthday, then the fourth dose is not required.
Measles, Mumps, and Rubella (MMR)
| Dose | Minimum Age for Dose | Minimum Interval for Next Dose |
|---|---|---|
MMR Dose 1 | 12 Months | 4 Weeks |
MMR Dose 2 | 13 Months | - |
Hepatitis A
| Dose | Minimum Age for Dose | Minimum Interval for Next Dose |
|---|---|---|
Hep A Dose 1 | 12 Months | 6 Months |
Hep A Dose 2 | 18 Months | - |
Hepatitis B
| Dose | Minimum Age for Dose | Minimum Interval to Next Dose |
|---|---|---|
Hep B Dose 1 | Birth | 4 Weeks |
Hep B Dose 2 | 4 Weeks | 8 Weeks |
Hep B Dose 3 | 24 Weeks | - |
Varicella (Chickenpox)
| Dose | Minimum Age for Dose | Minimum Interval to Next Dose |
|---|---|---|
Varicella Dose 1 | 12 Months | 12 Weeks |
Varicella Dose 2 | 15 Months | - |
Grade Specific Rules
The mandatory immunization requirement for students' school entry.
Pre-Kindergarten (Grade < 0)
| Vaccine | Required Dose |
|---|---|
DTaP | 4 Doses |
MMR | 1 Dose |
Polio | 3 Doses |
Hep B | 3 Doses |
Varicella | 1 Dose |
Hep A | 2 Doses |
7th Grade
| Vaccine | Required Dose |
|---|---|
Meningococcal | 1 Dose |
Tdap | 1 Dose |
12th Grade
| Vaccine | Required Dose |
|---|---|
Meningococcal | 2 Doses |