Rio de Janeiro registra quinta morte por varíola dos macacos

Five deaths from monkeypox in Rio de Janeiro state, with two additional fatalities reported among immunocompromised and comorbid patients.
The outbreak had no connection to animals, despite its name
Health authorities clarified a persistent misconception as cases continued to spread through human-to-human transmission.

In the first days of November 2022, Rio de Janeiro's monkeypox death toll reached five, as two more lives — a middle-aged immunocompromised man from the Baixada Fluminense and a young man with underlying conditions from the Lakes region — were lost to a disease whose name still misleads many about its true nature. With over 1,200 confirmed cases and hundreds more under investigation, the state finds itself navigating both a public health emergency and a battle against misinformation, reminding us that the names we give to illness often outlast the understanding that coined them.

  • Five people have now died from monkeypox in Rio de Janeiro, with two fatalities announced on the same day — both victims carrying health vulnerabilities that made the virus especially lethal.
  • More than 1,200 cases are confirmed across the state, with hundreds of probable and suspected cases still under investigation, signaling an outbreak that has not yet found its ceiling.
  • Authorities are working to correct a stubborn misconception: despite its name, this outbreak has nothing to do with animals — transmission is human to human, and misdirected fear could undermine prevention.
  • Healthcare workers face their own risk, with those who handled confirmed cases without proper protective equipment classified as probable cases — a warning about the dangers inside the system meant to heal.
  • Rio launched a public data dashboard to keep citizens informed, a gesture toward transparency as the health system races to distinguish confirmed infections from the growing queue of suspected ones.

Rio de Janeiro's monkeypox death toll reached five in early November 2022, after state health authorities announced two new fatalities on the same day. The first was a 46-year-old immunocompromised man from Nova Iguaçu, in the Baixada Fluminense, who died on October 31st with severe skin lesions. The second was a 27-year-old from São Pedro da Aldeia in the Lakes region, who had begun showing symptoms ten days earlier and was hospitalized with underlying health conditions that complicated his illness.

By that point, the state had confirmed 1,231 monkeypox cases, with 138 probable cases and 387 suspected cases still under investigation. Another 2,665 had been ruled out. Health authorities defined suspected cases as anyone presenting with sudden-onset lesions on mucous membranes or skin, while probable cases included those with recent exposure through prolonged close contact or direct physical contact with multiple or unknown partners — as well as healthcare workers who had treated confirmed patients without adequate protection.

One of the most important messages from authorities addressed a widespread misconception: despite its name, the current outbreak has no link to animals. The virus was first identified in monkeys, but the transmission driving the Rio de Janeiro outbreak is entirely human to human. To support public understanding, the state launched an open data dashboard tracking official case numbers — an effort to keep citizens informed as the outbreak continued to grow and the health system worked to manage both treatment and the steady flow of new suspected infections.

Rio de Janeiro's death toll from monkeypox climbed to five in early November, as the state health department announced two additional fatalities on the same day. The first victim was a 46-year-old man from Nova Iguaçu, in the Baixada Fluminense region, who died on October 31st. He was immunocompromised and had developed severe skin lesions characteristic of the disease. The second death, also reported on October 31st, involved a 27-year-old resident of São Pedro da Aldeia in the Lakes region, though his case was officially registered in the state capital. He had begun showing symptoms on October 21st and was hospitalized for treatment; he also had underlying health conditions that complicated his illness.

By early November, Rio de Janeiro was grappling with a substantial outbreak. The state health secretariat had confirmed 1,231 cases of monkeypox and identified 138 additional probable cases. Another 387 suspected cases remained under investigation, while 2,665 had been ruled out. The numbers painted a picture of an outbreak spreading through the population, though the state was working to distinguish confirmed infections from those still being evaluated.

The health department provided clear guidance on what constituted a suspected case: any person of any age presenting with sudden-onset lesions on mucous membranes or acute skin eruptions suggestive of monkeypox, whether single or multiple, anywhere on the body. Swelling of the genitals could also accompany these symptoms. Probable cases were defined differently—they involved patients who met certain exposure criteria, such as prolonged close contact without respiratory protection or direct physical contact with multiple or unknown partners in the three weeks before symptoms appeared. This category also included healthcare workers who had handled confirmed or probable cases without proper protective equipment.

One critical message from authorities addressed a persistent misconception about the disease. Despite its name, the current outbreak had no connection to animals, the health secretariat emphasized. The virus had been identified in monkeys during its initial discovery, but the spread now occurring in Rio de Janeiro and beyond was driven by human-to-human transmission, not animal contact. This distinction mattered for public understanding and for directing prevention efforts appropriately.

The state took steps to increase transparency around the outbreak, launching a public dashboard displaying official monkeypox data. This move reflected an effort to keep the population informed as cases continued to accumulate and the health system managed both treatment and investigation of new suspected infections. The focus on immunocompromised individuals and those with existing health conditions in the reported deaths underscored the particular vulnerability of certain populations to severe outcomes from the virus.

The patient was immunocompromised and presented with severe skin lesions
— Rio de Janeiro State Health Secretariat, on the 46-year-old victim
The current outbreak has no relation to animals despite the disease name
— Rio de Janeiro State Health Secretariat
A Conversa do Hearth Outra perspectiva sobre a história
Inventor

Why did these two deaths happen on the same day? Was there something about October 31st that made it significant?

Model

It wasn't that something happened on that day—it's when the deaths were officially reported and recorded by the health system. Both men had been sick for weeks before that. The 46-year-old's condition had been deteriorating, and the 27-year-old was already hospitalized. October 31st was just when the paperwork caught up with the reality.

Inventor

The health department kept emphasizing that this wasn't about monkeys. Why did they feel the need to say that so explicitly?

Model

Because people were scared and confused. The name itself suggests animals are involved, and in the early days of any outbreak, rumors spread faster than facts. They needed to redirect attention away from animal contact and toward the actual transmission route—close physical contact between people. That's where prevention efforts needed to focus.

Inventor

Both men who died had something in common—one was immunocompromised, the other had comorbidities. Does that mean healthy people weren't dying?

Model

The data doesn't tell us that. We only know about these two deaths. But yes, the pattern suggests that people with weakened immune systems or existing health conditions faced higher risk of severe illness. That's typical with many infectious diseases. It doesn't mean others were safe, just that vulnerability was concentrated in certain groups.

Inventor

The state was tracking 387 suspected cases still under investigation. What does that mean in practical terms?

Model

It means people had come forward with symptoms that looked like monkeypox, but the tests hadn't come back yet or the exposure history wasn't clear enough to confirm. The health system was overwhelmed with the work of sorting through cases, interviewing patients about their contacts, and waiting for lab results. Every one of those 387 represented someone who was sick and uncertain.

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