There will be a new wave unless we remain disciplined
No verão europeu de 2021, enquanto multidões voltavam a se reunir nos estádios e bares para celebrar o futebol, a Organização Mundial da Saúde emitiu um alerta que soava como um eco do passado recente: a Europa corria o risco de uma terceira onda de COVID-19. Após dez semanas de queda, os casos subiram 10% em uma única semana — um sinal de que o desejo humano de retornar à normalidade e a realidade biológica de um vírus ainda em circulação estavam em rota de colisão. A variante Delta avançava, milhões permaneciam sem vacina, e a Euro 2020 reunia exatamente as condições que o vírus precisava para se espalhar.
- Após dez semanas de declínio, os casos de COVID-19 na Europa subiram 10% em uma semana, quebrando uma tendência que parecia anunciar o fim da crise.
- A variante Delta, mais transmissível, combinada com milhões de europeus ainda sem vacinação, criou um terreno fértil para a rápida disseminação do vírus.
- A Euro 2020 tornou-se um catalisador epidemiológico: torcedores viajavam em ônibus lotados, se aglomeravam em bares fechados e compartilhavam o mesmo ar por horas — exatamente o que o vírus precisava.
- A Escócia forneceu a prova concreta: quase 2.000 casos positivos foram rastreados até eventos da Euro 2020 entre 11 e 28 de junho, representando cerca de 6% de todos os infectados no período.
- A OMS não pediu o cancelamento do torneio, mas lançou um alerta direto: sem disciplina coletiva, uma nova onda era inevitável — e as quartas de final estavam prestes a começar.
Na quinta-feira, a Organização Mundial da Saúde emitiu um alerta incomum em sua franqueza: a Europa enfrentava o risco real de uma terceira onda de COVID-19, e a Euro 2020 estava ajudando a alimentá-la. A quebra de uma sequência de dez semanas de queda nos casos — substituída por um aumento de 10% em uma única semana — não era coincidência. Era o resultado de uma convergência perigosa.
Governos haviam começado a afrouxar restrições justamente quando a variante Delta ganhava terreno. Milhões de europeus ainda não tinham sido vacinados. E o torneio de futebol reunia pessoas em estádios, bares e ruas de uma forma que não acontecia há mais de um ano. Hans Kluge, diretor regional da OMS para a Europa, foi direto: "Haverá uma nova onda na região europeia da OMS, a menos que permaneçamos disciplinados."
A oficial de emergências Catherine Smallwood descreveu o que os especialistas viam no terreno: torcedores em ônibus lotados entre cidades-sede, reunidos em pubs fechados sem ventilação adequada, respirando o mesmo ar por horas. "São esses pequenos eventos contínuos que estão impulsionando a disseminação do vírus", disse ela.
A Escócia ofereceu a evidência mais concreta. Entre 11 e 28 de junho, autoridades de saúde rastrearam quase 2.000 casos positivos até pessoas que haviam participado de eventos da Euro 2020 — cerca de 6% de todos os infectados no período. Os números não eram enormes, mas eram prova de que o torneio funcionava como um acelerador da pandemia.
Com as quartas de final prestes a começar, estádios continuariam recebendo torcedores e bares permaneceriam abertos. O alerta da OMS não era um pedido de cancelamento — era um reconhecimento de que o continente havia entrado em uma nova fase de risco, onde o que acontecesse a seguir dependeria da disciplina coletiva que Kluge invocava.
The World Health Organization issued a stark warning on Thursday: Europe faces the real possibility of a third wave of COVID-19, and the continent's summer football tournament may be helping to push it along. The alert came as new infections across Europe ticked up 10 percent in a single week, breaking a ten-week streak of declining cases. The timing was not coincidental.
Health officials pointed to a convergence of vulnerabilities. Governments had begun loosening pandemic restrictions just as the Delta variant—more transmissible than earlier strains—was gaining ground. Millions of Europeans remained unvaccinated. And across the continent, the Euro 2020 tournament was drawing crowds into stadiums, bars, and streets in ways that had not happened in over a year. Hans Kluge, the WHO's regional director for Europe, framed the situation with unusual directness: "There will be a new wave in the European WHO region, unless we remain disciplined."
The concern extended far beyond the pitch itself. Catherine Smallwood, the WHO's senior emergency officer, articulated what public health officials were seeing on the ground. Fans were traveling in packed buses between host cities. They were gathering in crowded pubs and bars to watch matches, often indoors and without the ventilation that outdoor stadiums provided. The virus did not care whether transmission happened inside a stadium or outside it—only that people were close together, breathing the same air, for hours at a time. "These are the small, continuous events that are driving virus spread," Smallwood said.
Scotland offered the clearest early evidence of the tournament's epidemiological footprint. Between June 11 and June 28, health authorities traced nearly 2,000 positive COVID cases to people who had attended Euro 2020 events. Out of 32,539 Scots who tested positive during that window, 1,991 of them—roughly six percent—had been at one or two tournament-related gatherings. The numbers were not enormous in absolute terms, but they were concrete proof that the tournament was not a neutral event in a pandemic. It was an accelerant.
The quarterfinals were set to begin the following day. Stadiums would continue to admit spectators, albeit at reduced capacity. Bars and gathering spaces in host cities would remain open. Fans would keep traveling. The WHO's warning was not a call to cancel the tournament or empty the stadiums—it was a recognition that the continent had entered a new phase of risk, one where the desire to return to normal life and the biological reality of a still-circulating virus were on a collision course. What happened next would depend on whether the discipline Kluge invoked could actually take hold.
Notable Quotes
There will be a new wave in the European WHO region, unless we remain disciplined— Hans Kluge, WHO regional director for Europe
These are the small, continuous events that are driving virus spread—people traveling in packed buses, gathering in crowded bars and pubs to watch matches— Catherine Smallwood, WHO senior emergency officer
The Hearth Conversation Another angle on the story
Why did the WHO single out Euro 2020 specifically? Weren't there other large gatherings happening across Europe at the same time?
Euro 2020 was uniquely visible and uniquely mobile. It wasn't one event in one place—it was matches spread across multiple countries, which meant fans were traveling internationally, crossing borders, moving the virus with them. And it had cultural weight. People were not just attending; they were traveling in groups, staying in hotels, gathering in public spaces to watch. That created dozens of transmission opportunities per person.
The Scotland numbers—1,991 cases out of 32,539—that's about six percent. Does that seem high or low to you?
It depends on your baseline. If you're asking whether six percent is a catastrophe, no. But if you're asking whether it's evidence that a major public gathering during a pandemic accelerates spread, yes. Six percent of 32,000 people is real. And that's just the cases they could trace back. The actual number was probably higher.
What made the Delta variant different from what Europe had been dealing with before?
It was more contagious. The variants that dominated earlier in 2021 were already spreading, but Delta moved faster through populations. It also seemed to evade some of the protection that earlier infections provided. So you had a situation where vaccination rates were still climbing, millions of people had no immunity at all, and a more dangerous variant was circulating. The tournament happened right in that window.
Kluge said there would be a new wave "unless we remain disciplined." What did he mean by that?
He was saying the outcome was not predetermined. If people voluntarily reduced their contacts, if they got vaccinated, if they wore masks in crowded spaces—if they made individual choices that limited spread—the wave could be prevented. But it required collective action. The virus was not going to stop on its own.