European Commission President Ursula Von Der Leyen gestures as she speaks at a joint news conference with Portugal's Prime Minister Antonio Costa (not pictured) at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

European Commission President Ursula Von Der Leyen gestures as she speaks at a joint news conference with Portugal's Prime Minister Antonio Costa (not pictured) at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

People queue to receive COVID 19 vaccines inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

Skiers practise COVID-19 social distancing on a chairlift in Flachau, Austria January 15, 2021. REUTERS/Leonhard Foeger

European Commission President Ursula Von Der Leyen holds a joint news conference with Portugal's Prime Minister Antonio Costa at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

People queue to receive COVID 19 vaccines inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

A man receives a COVID 19 vaccine inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

A healthcare worker prepares a COVID 19 vaccine inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

A skier rests on top of a mountain as the spread of coronavirus disease (COVID-19) continues in Flachau, Austria January 15, 2021. REUTERS/Leonhard Foeger

Skiers practise COVID-19 social distancing on a chairlift in Flachau, Austria January 15, 2021. REUTERS/Leonhard Foeger

Skiers practise COVID-19 social distancing on a chairlift in Flachau, Austria January 15, 2021. REUTERS/Leonhard Foeger

People queue to receive their COVID 19 vaccines inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

People wait to receive their COVID 19 vaccines inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

People receive their COVID 19 vaccines inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

People receive their COVID 19 vaccines inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

People wait inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

A woman walks inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

Closed ski slope and restaurant are pictured as the spread of coronavirus disease (COVID-19) continues in Flachau, Austria January 15, 2021. REUTERS/Leonhard Foeger

People wait to receive their COVID 19 vaccines inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

European Commission President Ursula Von Der Leyen speaks at a joint news conference with Portugal's Prime Minister Antonio Costa (not pictured) at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

A truck leaves the DFDS warehouse facility in Larkhall, Scotland, Britain January 15, 2021. REUTERS/Russell Cheyne

Skiers rest on top of a mountain as the spread of coronavirus disease (COVID-19) continues in Flachau, Austria January 15, 2021. REUTERS/Leonhard Foeger

European Commission President Ursula Von Der Leyen speaks at a joint news conference with Portugal's Prime Minister Antonio Costa (not pictured) at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

Michigan State Police monitor the perimeter as fencing is put up amid beefed up security ahead of planned protests at the state Capitol building in Lansing, Michigan, U.S., January 15, 2021. REUTERS/Emily Elconin

Dutch Prime Minister Mark Rutte leaves the Royal Palace, in The Hague, Netherlands January 15, 2021. REUTERS/Piroschka van de Wouw

Portugal's Prime Minister Antonio Costa speaks at a joint news conference with European Commission President Ursula Von Der Leyen (not pictured) at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

Skiers practise social distancing skiing down the slope as the spread of the coronavirus disease (COVID-19) continues in Flachau, Austria January 15, 2021. REUTERS/Leonhard Foeger

Fencing is put up around local businesses amid beefed up security ahead of planned protests at the state Capitol building in Lansing, Michigan, U.S., January 15, 2021. REUTERS/Emily Elconin

Dutch Prime Minister Mark Rutte leaves the Royal Palace, in The Hague, Netherlands January 15, 2021. REUTERS/Piroschka van de Wouw

Fencing is put up around local businesses amid beefed up security ahead of planned protests at the state Capitol building in Lansing, Michigan, U.S., January 15, 2021. REUTERS/Emily Elconin

Fencing is put up around Lansing City Hall amid beefed up security ahead of planned protests at the state Capitol building in Lansing, Michigan, U.S., January 15, 2021. REUTERS/Emily Elconin

Dutch Prime Minister Mark Rutte leaves the Royal Palace, in The Hague, Netherlands January 15, 2021. REUTERS/Piroschka van de Wouw

European Commission President Ursula Von Der Leyen holds a joint news conference with Portugal's Prime Minister Antonio Costa at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

Fencing is put up around Lansing City Hall amid beefed up security ahead of planned protests at the state Capitol building in Lansing, Michigan, U.S., January 15, 2021. REUTERS/Emily Elconin

People talk to healthcare workers inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

European Commission President Ursula Von Der Leyen holds a joint news conference with Portugal's Prime Minister Antonio Costa at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

8-year-old Alice Wilkinson is joined by her cat Freddie as she does her maths online schooling amid the outbreak of the coronavirus disease (COVID-19) in Manchester, Britain, January 15, 2021. REUTERS/Phil Noble

A healthcare worker talks to a woman before injecting her a COVID 19 vaccine inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

A healthcare worker looks on as people wait to receive their COVID 19 vaccines inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

A healthcare worker gives instructions to people inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

8-year-old Alice Wilkinson is joined by her cat Freddie as she does her maths online schooling amid the outbreak of the coronavirus disease (COVID-19) in Manchester, Britain, January 15, 2021. REUTERS/Phil Noble

How the Indonesian airline relied on an ageing fleet

Portugal's Prime Minister Antonio Costa speaks at a joint news conference with European Commission President Ursula Von Der Leyen (not pictured) at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

European Commission President Ursula Von Der Leyen speaks at a joint news conference with Portugal's Prime Minister Antonio Costa (not pictured) at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

An empty Parliament of Catalonia is pictured as parliamentary groups discuss the postponement of the Catalan elections, in Barcelona, Spain January 15, 2021. REUTERS/Nacho Doce

Fencing is put up around Lansing City Hall amid beefed up security ahead of planned protests at the state Capitol building in Lansing, Michigan, U.S., January 15, 2021. REUTERS/Emily Elconin

Dutch Prime Minister Mark Rutte leaves the Royal Palace, in The Hague, Netherlands January 15, 2021. REUTERS/Piroschka van de Wouw

Dutch Prime Minister Mark Rutte leaves the Royal Palace, in The Hague, Netherlands January 15, 2021. REUTERS/Piroschka van de Wouw

European Commission President Ursula Von Der Leyen speaks at a joint news conference with Portugal's Prime Minister Antonio Costa (not pictured) at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

Dutch Prime Minister Mark Rutte leaves the Royal Palace, in The Hague, Netherlands January 15, 2021. REUTERS/Piroschka van de Wouw

Electors for Pro-independence of Catalonia hold signs reading "Freedom" and "Freedom for Political Prisoners", the day before a meeting of parliamentary groups to postpone the Catalan elections, in Barcelona, Spain January 14, 2021. Picture taken January 14, 2021. REUTERS/Nacho Doce

European Commission President Ursula Von Der Leyen speaks at a joint news conference with Portugal's Prime Minister Antonio Costa (not pictured) at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

An elector for Pro-independence of Catalonia places a sign reading "Freedom" inside a bag with the EU flag, the day before the postponement of the Catalan elections, in Barcelona, Spain January 14, 2021. Picture taken January 14, 2021. REUTERS/Nacho Doce

Acting Catalan regional leader, Pere Aragones, arrives to a meeting with parliamentary groups to postpone the Catalan elections in the Parliament of Catalonia in Barcelona, Spain January 15, 2021. REUTERS/Nacho Doce

People receive their COVID 19 vaccines inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

A woman receives her COVID 19 vaccine inside Lichfield Cathedral which had been turned into an emergency vaccination centre, amid the coronavirus disease (COVID-19) outbreak, in Lichfield, in Birmingham, Britain, January 15, 2021. REUTERS/Carl Recine

European Commission President Ursula Von Der Leyen and Portugal's Prime Minister Antonio Costa arrive to holds a joint news conference at the start of Portugal's EU Presidency, in Lisbon, Portugal, January 15, 2021. REUTERS/Pedro Nunes

A child sleds down a hill on a frosty winter day in Kyiv, Ukraine January 15, 2021 REUTERS/Valentyn Ogirenko

Children sled down a hill on a frosty winter day in Kyiv, Ukraine January 15, 2021 REUTERS/Valentyn Ogirenko

People shop at market stalls, with skyscrapers of the CIty of London financial district seen behind, amid the coronavirus disease (COVID-19) pandemic, in London, Britain, January 15, 2021. REUTERS/Toby Melville