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What You Need to Know About Immunization Information Systems

Immunization Information Systems

Immunization information systems help to collect information in one centralized location. Most states have these systems in place. They are becoming more commonplace as technology is being more widely used in recordkeeping in the medical field. These systems can be quite helpful and do offer benefits to providers and patients.


The goal of an IIS is to create a comprehensive database that providers can use when offering care to patients. These systems keep records of immunizations a patient has gotten. They allow providers to have a central location to record vaccination administration. Providers can consult the system to determine what vaccinations, if any, a patient needs.


The benefits of these systems are numerous. The most obvious is that they allow for a centralized record system. If a patient is getting immunizations at different locations, every one of the providers can stay informed. This helps to ensure patients are not getting over-vaccinated or missing needed vaccinations. It creates a nice ecosystem of health records that is beneficial, like that discussed by the University of Cincinatti.

Immunization Information Systems

The systems also enable administrators to keep better records of statistics. This is incredibly helpful if the system is showing people aren’t getting vaccinations. This can help with targeting campaigns to spread awareness, ensuring people know where to get vaccines, and helping people to get to clinics and other places to get immunizations. An IIS can also be used to create a reminder system. This allows clinics and offices to make sure patients remember when a vaccination is due. An IIS is a great example of the evolution of public health, as noted in this USC article.

In addition, by having a good database of who is getting vaccinated, public health officials are better able to determine areas at risk for certain diseases. For example, if a certain area is not getting vaccinated for chicken pox, then public health administrators will know to keep an eye on possible flare-ups of the disease in that area. This can help to keep doctors more informed and ready to treat patients with chicken pox, along with alerting schools to the chances of a problem with the disease that they may have to deal with.

How They Are Used

These systems are used to help create a better overall healthcare system. Doctors, officials, and patients can be more informed and better able to fight diseases. They allow providers to be more helpful to their patients because they are more informed. They allow patients to be kept aware of what they need when it comes to vaccinations. They are used to ensure that the general public is kept safe through individuals getting the vaccines they need.

When a person gets a vaccine, it is recorded into an IIS. If the patient, for example, got a vaccination at a clinic, the next time he or she sees a doctor, that doctor can access the system and will know what the patient has been vaccinated against. It is a rather simple system that can be incredibly helpful in tracking and monitoring vaccinations.

Lyle V. Hensley

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