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Immunization record says invalid for the status of pertussis...
Immunization record says invalid for the status of pertussis vaccine, what does this mean?
When a vaccine dose is "invalid," it usually means that protection from the vaccine cannot be guaranteed and that the dose needs to be repeated. Please speak with a public health nurse at your local health unit to find out why the dose is invalid and if you need to get the vaccine again. You can find the contact information for your local health unit here.