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

The United States continues to experience a significant resurgence of measles in 2026, with 3,887 confirmed cases reported as of October 1, according to the Centers for Disease Control and Prevention (CDC). This represents a nearly 70% increase over the 2,289 cases reported throughout 2025, making 2026 the worst year for measles in the United States since 1991.

For healthcare organizations, these numbers serve as an important reminder that vaccine-preventable diseases remain a serious operational challenge. As outbreaks spread across communities, Employee Health teams face increasing pressure to verify immunization histories, identify potential exposures, and coordinate timely responses. While measles may not be encountered every day, its highly contagious nature means even a single confirmed 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 diseases known. According to the CDC, 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 breathes. The virus can remain infectious in the air for up to two hours after an infected individual leaves an area, making healthcare environments particularly vulnerable.

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

• Employee exposure investigations

• Patient exposure notifications

• Immunity and vaccination verification

• Work restrictions and return-to-work decisions

• Follow-up testing or vaccination

• Significant administrative workload

These responsibilities can quickly overwhelm teams that lack immediate access to accurate employee health information.

Pennsylvania's Measles Outbreak Highlights the Challenges of Managing Exposures

Pennsylvania's ongoing measles outbreak provides a real-world example of the challenges healthcare organizations and public health departments face when responding to highly contagious diseases. According to the Pennsylvania Department of Health, the state recorded 1,004 confirmed measles cases across 39 counties as of October 5, 2026, resulting in 198 hospitalizations and five confirmed measles-associated deaths. The response has required significant coordination. Since the outbreak began in April, state health officials have organized 192 pop-up vaccination clinics, while healthcare providers across Pennsylvania administered more than 53,000 MMR vaccine doses in September alone, more than double the typical monthly volume. (Pennsylvania.gov)

If measles showed up in your facility tomorrow, how quickly could your Employee Health team determine who is protected, who may have been exposed, and who needs follow-up?

The Critical Role of Employee Health

When a measles exposure occurs, Employee Health teams often become a central part of coordinating an organization's workforce response. Their responsibilities extend well beyond documenting vaccinations. Teams may be responsible for verifying immunity, identifying exposed employees, coordinating post-exposure evaluations, managing work restrictions, and communicating with Infection Prevention and department leaders.

Consider a scenario in which a patient with measles visits a hospital emergency department.

Employee Health may need to determine which healthcare workers were present, review their documented immunity, identify anyone requiring additional evaluation, and coordinate appropriate follow-up. When vaccination histories, employee assignments, and exposure documentation are stored across multiple systems, gathering the necessary information can become a significant undertaking.

How TrackMy Helps Employee Health Teams Stay Ahead

Effective outbreak preparedness starts long before an exposure occurs. Employee Health teams need processes that help ensure employees meet health requirements during onboarding, maintain compliance throughout employment, and respond efficiently when an incident or exposure occurs.

TrackMy is a purpose-built Employee Health compliance platform that brings these processes together in one centralized system.

Multi-State Automated Immunization Retrieval: Start With a Compliant Workforce

Preparedness begins during onboarding. TrackMy's Multi-State Automated Immunization Retrieval helps Employee Health teams retrieve available immunization histories across multiple state registries, reducing the need for employees to manually locate and submit vaccination records. This allows organizations to identify missing immunizations or documentation earlier in the onboarding process and help ensure new hires meet applicable health requirements before they begin work. For diseases like measles, having verified immunization information readily available can make a significant difference when an exposure occurs. Instead of spending valuable time searching for records, Employee Health teams can focus on determining the appropriate next steps.

Automated Notifications & Reminders: Maintain Compliance Year-Round

Compliance does not stop after onboarding. Vaccinations become due, requirements expire, and documentation needs to be updated throughout an employee's time with an organization. TrackMy helps Employee Health teams stay ahead of these requirements through automated notifications and reminders that alert employees when health requirements are approaching, due, or need attention. Rather than manually reviewing spreadsheets and sending individual reminders, Employee Health teams can automate routine follow-up while maintaining visibility into workforce compliance.

Incident & Exposure Management: Digitize the Entire Process

When an incident or exposure occurs, Employee Health teams need a clear process to respond quickly and track each case through resolution. TrackMy's Incident & Exposure Management solution replaces paper forms and disconnected processes with customizable workflows built around your organization's existing policies.

Whether managing a needlestick or communicable disease exposure, teams can document the event, complete required forms, attach supporting documentation, track follow-up, and manage each case in one centralized place. For exposures, teams can also track multiple affected employees by hospital, department, building, or other location, providing greater visibility. From initial report to resolution, Employee Health can manage the entire process in one place.

Looking Ahead: Is Your Employee Health Team Ready?

Whether managing influenza, measles, tuberculosis, varicella, needlestick injuries, or other workplace incidents, Employee Health teams benefit from having accurate compliance information and established processes readily available. By combining automated immunization retrieval, proactive compliance management, and customizable incident and exposure workflows, TrackMy helps healthcare organizations reduce administrative burden and strengthen their approach to Employee Health.

When the next exposure occurs, your Employee Health team shouldn't have to figure out the process. The process should already be in place.

Discover how TrackMy can help your organization simplify Employee Health compliance and strengthen outbreak preparedness.