WAIIS forecast implementation issues

The WA State Immunization Information System (WAIIS) forecast was updated on February 26, 2025. This new and improved forecasting tool resolved many forecast bugs and will allow WAIIS technology vendor to efficiently make corrections and updates to forecasting recommendations. Please check out the Vaccination Summary & Forecast Quick Reference Guide to get more details about these changes.

After the forecast was updated, there were a few bugs that the team is working with the WAIIS vendor to address:

• Patients who are complete with their vaccine series for school or childcare are showing as Conditional rather than Complete on the Certificate of Immunization Status.
• OPV, unspecified doses given before 4/1/16 are incorrectly marked as invalid. We are changing all ‘OPV-unspecified’ doses administered before 4/1/2016 to ‘trivalent OPV (tOPV)’. This modification will ensure these immunization records are evaluated correctly by the WAIIS forecaster.  Please refer to the Polio Vaccine Documentation Quick Reference Guide for more information.
• For children who complete their PCV series, the Pneumococcal row in the Vaccination Forecast section will show the next dose as due at age 50 per ACIP (Advisory Committee on Immunization Practices) recommendations.
• Vaccines with Lab Evidence of Immunity not marked as permanent are listed as needed in the forecast.
• When looking at the Vaccination Forecast screen, some providers have confused the “Recommended Date” column as showing when a dose was given, rather than when the dose was due. Please note that red text in the "Recommended Date" column means the patient is not up to date. Refer to the “Status” column to confirm if a dose was administered or still past due.

We wanted to ensure you all are aware of the implementation issues. Any questions can be directed to ImmuneNurses@doh.wa.gov. Thank you for all your efforts to ensure that immunizations are complete and accurate in WAIIS!