When a viral public health crisis emerges, governments face immediate pressure to act. Their responsibility is twofold: prevent the illness from spreading while maintaining the movement of people and goods that economies depend on. Finding that balance has never been simple. 

The instinctive response to a growing outbreak is to impose broad travel restrictions. These are visible, decisive, and can be implemented quickly. But blanket measures also come at a cost, disrupting legitimate travel, placing additional pressure on border operations, and affecting trade, tourism and economic activity. 

The most effective border responses today are not defined by how much movement they stop, but by how precisely they manage this delicate balance. Rather than regard every traveler from an affected country as the same level of risk, they focus on identifying and stopping the highest-risk journeys before they translate into public health exposure. This allows borders to protect without bringing travel to a standstill. 

Anticipating the next crisis 

So soon after the world recovered from COVID-19, outbreaks of Ebola, swine flu, bird flu and hantavirus are a reminder that health threats do not wait for governments to be ready. These diseases are not new, but they continue to present serious risks to lives and livelihoods. 

COVID-19 spread quickly across the world, causing devastation to communities everywhere and changing the way governments think about border management. With global travel and trade continuing to grow, and with animal-to-human transmission remaining a real risk, governments cannot assume COVID-19 was a one-in-one-hundred-year event. 

From static rules to dynamic decisions 

Before the pandemic, worldwide border clearance requirements were relatively static. During COVID-19, health guidance changed rapidly, requiring governments to continually adjust entry criteria, boarding rules and screening procedures in real time as new information emerged. 

This shift highlighted an important lesson: modern borders need the right information, and the ability to turn that information into timely decisions while there is still an opportunity to act. Governments can now be better prepared, not because every crisis can be predicted, but because the tools to respond earlier and more precisely already exist. 

A different kind of response 

In May 2026, the World Health Organization declared the Ebola outbreak of the Bundibugyo variant in the Democratic Republic of Congo and Uganda a Public Health Emergency of International Concern. For border agencies, risk profiles changed overnight, and decisions needed to keep pace. 

In this context, the ability to interpret new data, refine risk criteria, and act before passengers arrive is what separates reactive responses from controlled ones. In a public health context, that means being able to respond to changing health indicators with the same speed and discipline already expected in security operations. 

Planning is what makes that possible. Governments need to think through the scenarios in advance: what information they will need, which controls they may need to activate, and how they would support screening, reception, quarantine, contact tracing or route-specific measures if the situation changes quickly. 

Earlier visibility creates more targeted responses 

Fortunately, modern border agencies already have access to many of the signals needed to make this shift. Travel authorization, digital declarations, Advance Passenger Information (API) and Passenger Name Record (PNR) data can help governments understand who is traveling, where they are coming from, where they have transited, and whether a journey may require closer attention before arrival. 

In a health crisis, the full potential of this information is realised when it is combined with public health intelligence, risk assessment and operational screening. Together, these signals help border agencies build a clearer picture of risk across air, land and sea borders, and apply proportionate measures based on the latest guidance. 

This is where moving the border upstream becomes powerful. If a government can understand risk before a traveler boards a flight, arrives at a land crossing, or reaches a seaport, it can intervene earlier, focus resources where they matter most, and avoid treating every journey from an affected region in the same way. 

That upstream view can include information about travel authorization, ports of departure and arrival, visas, routes and transit points, giving governments a more complete picture of where action may be needed. 

With this kind of visibility, responses can become more focused, changing the dynamic from broad restrictions to earlier, more informed decisions. 

Real world proof 

This approach is already being applied in live environments. 

In response to the current Ebola outbreak, one Middle Eastern government* is using SITA’s border intelligence capabilities to adjust its risk criteria as the situation evolves. By combining API and PNR data, travel authorization information and outbreak-related indicators, its border authority can identify travelers requiring closer attention before departure, particularly those originating from, or transiting through, affected regions. 

“For governments, border resilience depends on making the right decisions early enough to matter. SITA’s border intelligence capability helped us assess potential risk before arrival, adjust our approach as threats evolved, and focus attention where it was needed most. This strengthened our ability to secure the border, protect public health and preserve the movement of legitimate travelers.” 

This early visibility means no-board directives or other targeted measures can be applied to higher-risk journeys, without disrupting the movement of other travelers. This approach enables governments to manage public health risks without compromising their broader national and economic priorities. 

Why this matters now 

Countries best prepared for future health crises won’t be those with the strictest border controls, but those able to assess risk early, respond with precision, and continually adapt their decisions as new information becomes available. This allows them to curb disease transmission at the border and beyond, without unnecessarily disrupting people’s journeys, harming businesses, or jeopardising entire economies. 

Leading border agencies are proving that integrating the same immigration and security systems used every day with public health intelligence lets them deliver the most effective responses. 

* For confidentiality reasons, we cannot disclose the identity of the Middle Eastern government using SITA's systems.