As Europe continues to become the worst-hit continent where COVID-19 has claimed more than 5,000 lives in Italy alone, German Chancellor Angela Merkel was on Sunday in quarantine after meeting a doctor who tested positive for the novel coronavirus. The development comes as Germany further tightens rules on public gatherings and plots a taboo-breaking package of support for Europe’s top economy.

News of Merkel’s potential exposure to the virus came minutes after she announced a ban on public gatherings of more than two people and further infection control measures.

“The Chancellor has decided to quarantine herself immediately at home. She will be tested regularly in the coming days… (and) fulfil her official business from home,” spokesman Steffen Seibert said in a statement.

Merkel had been slated to lead a cabinet meeting Monday to sign off on a 822-billion-euro ($882 billion) slew of measures to support Europe’s top economy through the shutdowns of public life designed to slow the infection’s spread.

The infected doctor visited Merkel on Friday to vaccinate her against the pneumococcus bacteria. It could take some days to determine whether the 65-year-old chancellor is herself infected as “a test would not yet be fully conclusive,” Seibert said.

Merkel showed no apparent symptoms of ill health in Sunday’s televised press conference. During her 15-year term in office the chancellor has largely enjoyed robust health, although she suffered repeated shaking spells in public appearances during a summer 2019 heatwave that were never fully explained.

In response to the tremors, she chose to sit on a chair when receiving guests with military honours outside the chancellor’s office in Berlin. Previously the veteran leader broke her pelvis in a cross-country skiing accident in 2014.

Wearing one of her trademark block-colour blazers, she had been seen doing her own shopping at a local supermarket late Saturday, buying items including wine and toilet paper. If conservative leader Merkel were incapacitated, her role would be filled by vice-chancellor and finance minister Olaf Scholz of her junior coalition partners, the centre-left Social Democratic Party (SPD).

Gatherings of more than two people will be banned in Germany, Merkel said on Sunday, as Europe’s biggest economy toughened restrictions to stop the spread of the novel coronavirus. Germany has already closed down schools, non-essential shops and urged people not to gather in groups but has not yet imposed blanket limits on group gatherings.

“Our own behaviour is the most effective way” of slowing the rate of infection, Angela Merkel said of the unprecedented nationwide measures, which are initially slated to remain in force for two weeks.

Merkel appealed to citizens’ “reason and empathy” in implementing the contact restrictions, saying she had been “very moved” by how closely people had stuck to less stringent measures implemented in recent days.

The Robert Koch Institute, Germany’s disease control authority, said early Sunday the number of confirmed coronavirus cases had grown by almost 2,000 in the previous 24 hours, to 18,610.

So far 55 Germans have died of the disease. Germany’s all-out support to the economy on the cabinet agenda Monday includes hundreds of billions of euros in potential support for companies and workers.

(With inputs from AFP)