U.S. Measles Cases Reach Highest Level Since 1991: What Employee Health Teams Need to Know

As of August 27, the United States has already recorded 2,903 confirmed measles cases in 2026, surpassing the 2,289 cases reported during all of 2025. According to the Centers for Disease Control and Prevention (CDC), this marks the highest annual number of measles cases in the United States since 1991.

For healthcare organizations, the continued rise serves as an important reminder that vaccine-preventable diseases remain a real operational challenge. While measles may not be encountered every day, its highly contagious nature means even a single case can require a rapid and coordinated response from Employee Health, Infection Prevention, and organizational leadership.

Why Measles Demands Immediate Attention

Measles is one of the most contagious viruses known. The CDC estimates that up to 90% of susceptible people who are exposed to the virus will become infected.

Unlike many illnesses that require close contact, measles spreads through the air when an infected person coughs, sneezes, or even breathes. The virus can remain in the air and on surfaces for up to two hours after an infected individual leaves an area, making healthcare environments particularly vulnerable to exposure.

For hospitals and healthcare facilities, a single confirmed case can quickly lead to:

• Employee exposure investigations

• Patient exposure notifications

• Temporary work restrictions

• Vaccination verification

• Significant administrative workload

The Critical Role of Employee Health and Outbreaks like Measles

When a measles exposure occurs, employee health teams often become the central hub for coordinating the organization's response.

Their responsibilities extend well beyond documenting vaccinations. Teams may be responsible for:

• Verifying employee immunity and vaccination history

• Identifying employees who may have been exposed

• Coordinating post-exposure evaluation and follow-up

• Managing work restrictions and return-to-work decisions

• Communicating with infection prevention and department leaders

• Maintaining documentation for regulatory and organizational reporting

These responsibilities require accurate, accessible employee health information. When records are spread across spreadsheets, paper files, or disconnected systems, even a relatively small exposure event can become difficult to manage efficiently.

Five Questions Every Employee Health Department Should Be Asking

As measles activity continues across the country, healthcare organizations should evaluate whether they are prepared to respond if an exposure occurs.

Ask yourself:

1. Can we quickly identify employees who have documented immunity to measles?

2. Can we identify employees who may be overdue for required vaccinations?

3. Can we determine which employees worked in the affected department or building?

4. Can we notify exposed employees quickly and document follow-up actions?

5. Can leadership easily understand organizational compliance without manually compiling reports?

If the answer to any of these questions is no, it may be time to evaluate whether current processes are providing the visibility needed during an outbreak.

Preparedness Goes Beyond Vaccination Records

Having vaccination documentation is an important first step, but it is only one part of effective outbreak response. Once a potential exposure occurs, employee health teams must quickly identify affected employees, document the incident, coordinate follow-up, monitor work restrictions, and maintain a complete record of the organization's response.

Without centralized processes, these activities often become manual, time-consuming, and prone to error during situations where every minute matters.

Modern employee health programs are increasingly adopting technology that helps streamline both compliance management and exposure response, allowing teams to spend less time searching for information and more time protecting employees and patients.