I have decided this represents an emergency of international concern
En las últimas semanas de julio, la Organización Mundial de la Salud elevó el brote de viruela del mono al nivel de emergencia sanitaria mundial, una decisión que su propio comité de expertos no había logrado consensuar. El director general Tedros Adhanom Ghebreyesus, al constatar que el virus ya circulaba en 74 países con más de 16.500 casos, determinó que la evidencia superaba el umbral de lo que el mundo puede ignorar. Con esta declaración, la humanidad reconoce una vez más que las fronteras no detienen los patógenos, y que la respuesta coordinada es la única respuesta posible.
- El virus avanzó más rápido de lo previsto: en apenas un mes pasó de ser una 'amenaza en evolución' a una emergencia de alcance global con presencia en 74 países.
- La falta de consenso dentro del propio comité de emergencias de la OMS reveló la tensión entre la cautela científica y la urgencia de actuar antes de que la situación se desborde.
- Solo en Estados Unidos se registraron más de 2.800 casos en 44 estados, evidenciando que ninguna nación, por más recursos que tenga, está aislada del riesgo.
- La declaración de PHEIC activa los mecanismos vinculantes del Reglamento Sanitario Internacional de 2005, obligando a 196 países a reforzar la detección, el reporte y la respuesta coordinada.
- Los esfuerzos de prevención se concentran en las comunidades más afectadas, particularmente hombres que tienen sexo con hombres, apostando por la comunicación dirigida como herramienta más eficaz que los mensajes genéricos.
Un sábado de finales de julio, la OMS dio un paso que llevaba semanas gestándose: declaró la viruela del mono una emergencia de salud pública de importancia internacional, conocida por sus siglas en inglés como PHEIC. Tedros Adhanom Ghebreyesus tomó la decisión de manera unilateral tras convocar por segunda vez a su comité de emergencias, que no había alcanzado consenso. Apenas un mes antes, ese mismo comité había revisado el mismo brote y concluido que no ameritaba la alarma máxima. El virus, sin embargo, no esperó.
Una PHEIC no es una designación menor. Bajo el Reglamento Sanitario Internacional de 2005 —un acuerdo vinculante entre 196 países— representa un evento extraordinario que exige respuesta coordinada a escala global. Solo un puñado de crisis han alcanzado este nivel: la gripe H1N1, el ébola en dos ocasiones, el zika, la polio y el COVID-19. La viruela del mono se sumó a esa lista con más de 16.500 casos en 74 países, y más de 2.800 solo en Estados Unidos, distribuidos en 44 estados.
El virus, pariente lejano de la ya erradicada viruela, se transmite por contacto directo con fluidos corporales, materiales contaminados y, en espacios cerrados, por gotículas respiratorias. Aunque menos severo que la viruela, su expansión fuera de África Occidental y Central —donde es endémico— encendió las alarmas. Una parte significativa de los casos se concentraba en hombres que tienen sexo con hombres, lo que llevó a las autoridades sanitarias a enfocar sus esfuerzos de prevención en esa comunidad, reconociendo que los mensajes dirigidos son más efectivos que las campañas genéricas.
Con la declaración de emergencia, el engranaje de la cooperación sanitaria internacional quedó activado. Los países deberán fortalecer sus sistemas de detección y reporte, y los recursos comenzarán a fluir hacia la respuesta. Lo que en junio parecía manejable, en julio se convirtió en un asunto que el mundo ya no podía postergar.
On a Saturday morning in late July, the World Health Organization made a decision that had been building for weeks: monkeypox was now a global health emergency. Tedros Adhanom Ghebreyesus, the WHO's director general, announced the designation despite the fact that his own emergency committee had not reached consensus on the matter. He had convened them a second time on Thursday, reviewed the five criteria required to make such a declaration, and decided the evidence warranted it.
Just a month earlier, in late June, the same committee had looked at the same outbreak and concluded it did not yet rise to the level of a public health emergency of international concern—what the WHO calls a PHEIC. At that time, the committee acknowledged a "threat to health that was evolving" but said it was not ready to sound the alarm. The situation had changed. The virus was moving faster and spreading wider than anticipated.
A PHEIC is not a casual designation. Under the International Health Regulations established in 2005, it signals an "extraordinary event" that poses a risk of disease spreading across borders and demands a coordinated response from the world's nations. The regulations themselves represent a binding agreement among 196 countries to detect, assess, report, and respond to potential public health crises. When the WHO invokes this authority, it carries weight. Only a handful of outbreaks have triggered it: H1N1 influenza in 2009 and 2010, Ebola in 2014 through 2016 and again in 2019 and 2020, and Zika in 2016. Polio, which began its emergency designation in 2014, and COVID-19, which began in 2020, remain active emergencies.
The numbers told the story of why Tedros felt compelled to act. Across the globe, more than 16,500 cases had been reported in 74 countries. In the United States alone, the Centers for Disease Control and Prevention had documented more than 2,800 probable or confirmed cases spread across 44 states, Washington, D.C., and Puerto Rico. The virus was not contained. It was not slowing.
Monkeypox itself is a distant cousin of the now-eradicated smallpox virus, but far less severe. It is naturally found in parts of West and Central Africa, where it typically spreads from rodents or small mammals to humans. Once in the human population, it travels through direct contact with bodily fluids, through touching sores, or through contaminated materials like clothing and bedding. It can also spread person to person via respiratory droplets, particularly in enclosed spaces. Anyone who had close contact with an infected person faced high risk of catching it.
This outbreak had a particular geography within the global spread. A significant portion of cases were occurring among men who have sex with men, and public health authorities had begun concentrating their prevention efforts on this population. The focus reflected both epidemiology and the reality that targeted outreach to communities most affected could slow transmission more effectively than broad, generic messaging.
The PHEIC declaration meant that the machinery of international health coordination would now engage. Countries would be expected to strengthen their detection and reporting systems. Resources would flow toward response. The virus, which had been treated as a concerning but manageable situation in June, was now officially a matter of global concern requiring the world's coordinated attention.
Notable Quotes
I have decided that the global outbreak of monkeypox represents a public health emergency of international concern— Tedros Adhanom Ghebreyesus, WHO Director General
The Hearth Conversation Another angle on the story
Why did the WHO change its mind in just four weeks?
The numbers didn't stay the same. Cases were doubling, spreading to new countries, moving faster than the committee had anticipated in June. Sometimes you need to see the trajectory before you can call it a crisis.
But the committee still didn't agree. How can Tedros declare an emergency if his own advisors weren't convinced?
He has that authority. The committee advises, but the director general decides. He was saying: I've heard your concerns, I've reviewed the criteria, and the evidence meets the threshold. It's a lonely decision when consensus breaks down.
What actually changes when you call something a PHEIC?
It signals to 196 countries that this is now a coordinated problem, not a regional one. Money moves. Attention focuses. Protocols activate. It's the difference between a fire department responding to a house fire and declaring a citywide emergency.
The outbreak seems to be hitting men who have sex with men particularly hard. Why is that being mentioned?
Because public health works best when it meets people where they actually are. If you know the virus is spreading through specific networks, you target prevention there. It's not about blame—it's about efficiency and reaching people who need information most urgently.
Is monkeypox actually dangerous?
It's serious but not catastrophic. It's far milder than smallpox, which it's related to. But "milder" doesn't mean harmless. People get sick, some get very sick, and it spreads. That's why it warranted the declaration.