The virus mutated slowly and had more limited transmission routes than COVID-19
En el mismo día en que la Organización Mundial de la Salud declaró la viruela del mono una emergencia sanitaria global, Perú contabilizaba 157 casos confirmados distribuidos en ocho regiones, parte de un brote que ya había alcanzado a más de 10,000 personas en más de 70 países. La respuesta peruana llegó antes que el primer caso: alertas epidemiológicas, hospitales designados y protocolos diagnósticos propios hablan de un sistema que aprendió, con dolor, a anticiparse. El virus avanza con más lentitud que sus predecesores recientes, y aunque el mundo lo vigila con cautela, Perú lo enfrenta sin muertes y con la mayoría de sus pacientes en condición leve.
- La OMS declaró emergencia sanitaria internacional el 23 de julio, elevando la viruela del mono al nivel de alerta más alto justo cuando el brote superaba los 10,000 casos en más de 70 naciones.
- Perú escaló de un único caso importado el 26 de junio a 157 confirmados en menos de un mes, con Lima como epicentro concentrando 136 de ellos.
- El sistema de salud peruano activó una red de cinco hospitales con salas de aislamiento y desarrolló un protocolo molecular propio capaz de entregar resultados en doce horas, sin depender del exterior.
- Especialistas señalan que la baja tasa de mutación y las rutas de contagio más limitadas distinguen a este virus del COVID-19, reduciendo el riesgo de propagación masiva.
- Con 24 pacientes ya dados de alta y ninguna muerte registrada en el país, el brote peruano se mantiene contenido, aunque los individuos inmunocomprometidos siguen siendo la población más vulnerable.
El sábado 23 de julio, la OMS declaró la viruela del mono una emergencia de salud pública de importancia internacional. Ese mismo día, Perú sumaba 157 casos confirmados en ocho regiones, parte de un brote global que ya afectaba a más de 10,000 personas en más de 70 países.
El primer caso peruano llegó el 26 de junio: un ciudadano extranjero residente en Lima, aislado junto a sus contactos cercanos y atendido inicialmente en el Hospital Santa Rosa. Lo que comenzó como un caso único se convirtió en una curva ascendente. Para el 23 de julio, 136 de los 157 casos se concentraban en Lima metropolitana; el resto se distribuía entre Callao, La Libertad, Ica, Cusco y otras regiones. Veinticuatro pacientes ya habían recibido el alta.
Lo que distinguió la respuesta peruana fue su anticipación. Antes de confirmar el primer caso, el Ministerio de Salud emitió alertas epidemiológicas a establecimientos públicos y privados, reforzó la vigilancia en aeropuertos, puertos y fronteras terrestres, y designó cinco hospitales en Lima y Callao para la atención exclusiva de pacientes con viruela del mono. El Instituto Nacional de Salud desarrolló además un protocolo de diagnóstico molecular propio, con resultados disponibles en doce horas.
La enfermedad se manifiesta en dos fases: una inicial con fiebre, cefalea intensa, ganglios inflamados y fatiga profunda, seguida de una erupción cutánea que comienza en el rostro y se extiende por el cuerpo. El contagio ocurre por contacto directo con las lesiones, objetos contaminados o gotículas respiratorias.
El especialista Luis Pampa, del Instituto Nacional de Salud, subrayó que la mortalidad global no superaba el cuatro por ciento y que la mayoría de los casos eran leves o moderados. La lenta mutación del virus y sus rutas de transmisión más acotadas lo alejaban del perfil del COVID-19. En Perú no se registraron muertes; las cinco muertes globales ocurrieron en África, donde el virus es endémico. La mayor preocupación seguía siendo la población inmunocomprometida.
Las autoridades instaron a quienes presentaran síntomas a acudir al establecimiento de salud más cercano o llamar a la línea del ministerio. La higiene de manos, el uso de mascarilla y el distanciamiento físico permanecían como las defensas más accesibles. El brote era real y estaba siendo rastreado con precisión, pero en Perú, al menos por ahora, no tenía la dimensión de una crisis que transformara la vida cotidiana.
On Saturday, July 23rd, the World Health Organization took the step of declaring monkeypox a global public health emergency. By that same day, Peru had documented 157 confirmed cases of the virus across eight regions of the country, part of a broader outbreak that had already touched more than 10,000 people in more than 70 nations worldwide.
The first case in Peru arrived quietly. On June 26th, Health Minister Jorge López Peña announced that a foreign national living in Lima had tested positive for monkeypox. The patient was isolated, along with family members who had been in contact, and initially treated at Hospital Santa Rosa before being moved to home care once his condition stabilized. That single case was the opening of what would become a steady climb. By mid-July, the numbers had accelerated. Of the 157 confirmed cases by July 23rd, the vast majority—136—were concentrated in metropolitan Lima. The remaining cases were scattered: seven in Callao, five in La Libertad, two each in Lima's provinces, Ica, and Cusco, and one each in Tacna, Loreto, and Piura. Twenty-four patients had already been discharged from medical care.
The Peruvian health system had not been caught unprepared. In late May, before the first case was even confirmed, the Ministry of Health issued an epidemiological alert to public and private health facilities across the country, instructing them to identify, report, and investigate any suspected imported cases. Surveillance was intensified at airports, ports, and land border crossings. Five hospitals in Lima and Callao—Cayetano Heredia, Dos de Mayo, Villa El Salvador, Ate Vitarte, and Daniel Alcides Carrión—were designated to handle monkeypox patients, each equipped with isolation wards. The National Institute of Health developed a molecular diagnostic protocol that could deliver results within twelve hours of receiving a sample, eliminating the need to send tests abroad for confirmation.
The disease itself presents in two distinct phases. The first, lasting zero to five days, brings fever, severe headache, swollen lymph nodes, lower back pain, muscle aches, and profound fatigue. The second phase, beginning one to three days after fever onset, is marked by a skin rash that typically starts on the face and spreads outward. The lesions are raised, deep, well-defined, and often dimpled at the center. They can appear on the face, palms, soles, and other areas of the body. Transmission occurs through direct contact with these skin lesions, contaminated objects, or respiratory droplets from talking, coughing, or sneezing.
What distinguished monkeypox from the pandemic that had dominated global health for two years was its apparent restraint. Luis Pampa, an infectious disease specialist at Peru's National Institute of Health, explained that mortality rates in countries with far larger case counts did not exceed four percent, and the vast majority of infections were mild to moderate in severity. The virus mutated slowly and had more limited transmission routes than COVID-19, making rapid spread unlikely. No deaths had been recorded in Peru. Globally, five deaths had occurred, all in Africa, where the virus is endemic. The concern, Pampa noted, centered on immunocompromised individuals, who faced risk of serious complications.
For those experiencing symptoms—fever, headache, rash—the path forward was clear. Citizens were instructed to visit the nearest health facility or call the health ministry's hotline. Hand hygiene, masks, and physical distance remained the practical defenses. The outbreak was real, documented, and being tracked with precision. But it was not, at least in Peru, the kind of emergency that would remake daily life.
Citações Notáveis
The mortality rate in other countries with larger case numbers does not exceed four percent, and most cases are mild to moderate in severity— Luis Pampa, infectious disease specialist at Peru's National Institute of Health
This case has presented in the capital, Lima. The patient has undergone all laboratory examinations and tested positive for monkeypox— Health Minister Jorge López Peña, announcing Peru's first confirmed case on June 26
A Conversa do Hearth Outra perspectiva sobre a história
Why did Peru's health system move so quickly to set up protocols before the first case even arrived?
They were watching what was happening in Europe and other countries. By May, it was clear this was spreading internationally. The smart move was to prepare the infrastructure—the alerts, the diagnostic capacity, the isolation wards—before it landed on their doorstep.
The first patient was a foreign national. Does that tell us something about how the virus entered Peru?
It suggests the outbreak followed travel patterns, which makes sense. Monkeypox doesn't move on its own. It moves with people. That's why they focused surveillance on airports and borders.
One hundred thirty-six cases in Lima, but only one in Piura, one in Loreto. Why such uneven distribution?
Lima is the capital, the hub. It has the most international travel, the most density, the most contact networks. The other cases are likely connected to travel from Lima or to people who came through Lima. The virus follows the paths people take.
The WHO called it a global emergency, but Peru had no deaths. Does that emergency declaration feel premature?
Not really. The emergency wasn't about Peru alone. It was about 10,000 cases across 70 countries and the trajectory. Five deaths in Africa, where the virus is endemic and healthcare is more fragmented. The declaration was about preventing what happened there from spreading elsewhere.
Why does monkeypox seem so much less dangerous than COVID-19?
The virus itself is older, more stable. It doesn't mutate as readily. And the way it spreads is more direct—you need contact with lesions or respiratory droplets in close proximity. It's not as efficient at jumping between people. That's actually why they thought they could contain it.