Until now, scientists have tentatively suggested that there may be a link between the virus and Guillain-Barre syndrome, an autoimmune condition when the body attacks itself after an infection.

Tyler Fischer, 29, from New York posed as a broadcast journalist in an elaborate prank in which he claimed the Democrat presidential candidate had withdrawn from the race because of illness.

The Dept of Commerce says 74m US residents travelled internationally in 2015 - a 9% rise on the previous year. Of those, 33m travelled overseas, with the UK the most popular destination.

None of the rats tested at Philadelphia's Wistar Institute contracted Zika after getting the vaccine. It is the best result of a Zika vaccine to date, and it is the same being tested in the first human trials.

The mosquito-borne virus sparked global panic this year after millions were infected, causing scores of babies to be born with birth defects such as microcephaly.

Officials lifted the warning on Tuesday, saying more than 45 days had passed since they have found a new last local case of the mosquito-borne infection.

Researchers from the Queensland University of Technology have found a way to kill the Zika virus using compounds found in an Australian native plant.

Researchers at Washington University School of Medicine have found that a malaria drug blocks Zika from infecting the fetus. It is the first sign of a drug that could prevent Zika birth defects.

With Australian Survivor set to return on Sunday, host Jonathan LaPaglia revealed he thought he had contracted the Zika virus while filming the reality show

In a first for the California county, a Los Angeles woman has contracted Zika by having sex with a man who was infected with the virus. It is rarely sexually transmitted, and women are at worse risk.

Robert Lewandowski has urged Poland to approach their crunch Euro 2016 game against Germany 'without fear' ‒ although the captain admits their opponents are favourites to win the tournament.

Lukas Podolski was born in Poland but plays for Germany, and Thursday's match between the countries at the European Championship promises to be another emotional experience.

Poland's first-choice goalkeeper Wojciech Szczesny will miss Thursday's Euro 2016 clash with Germany but could return for their final Group C game against Ukraine

World Cup winners Germany lived up to their billing as as one of the clear favourites for Euro 2016 with a 2-0 victory over Ukraine in their opening game.

Germany's players have taken to Twitter ahead of their second game of Euro 2016 Group C against Poland at the Stade de France. Mesut Ozil and Bastian Schweinsteiger both got involved.

Euro 2016 has been something of a feel-good tournament for Germany so far and Joachim Low's men are certainly optimistic they can keep that going when they face Poland on Thursday night.

The German machine showed itself to be functioning perfectly as die Mannschaft brushed aside Ukraine in their opening game. You can follow their clash against Poland with DAN RIPLEY.

MATT BARLOW AT THE STADE DE FRANCE: This time, Joachim Low was left scratching his head as opposed to another part of his anatomy as Poland made his world champions appear mortal..

Tightly marked by past and present club teammates who know him well, Poland striker Robert Lewandowski endured another frustrating match inside the Stade de France on Thursday.

The Arsenal stopper damaged his thigh in Poland's opening group game against Northern Ireland. Swansea keeper Lukasz Fabianski will continue to deputise in his compatriot's absence.

Sportsmail's Martin Keown offers his assessment of Tuesday's two early games at Euro 2016 as Northern Ireland look to secure progress to the last 16 and Poland try to beat Germany to top spot.

Poland will hope Robert Lewandowski can fire them to an automatic top-two qualification spot for Euro 2016 when they face Ukraine on Tuesday afternoon.

Poland reached the knockout stages of the European Championship for the first time in their history following a 1-0 victory over neighbours Ukraine in the Stade Velodrome, Marseille.

The contrast in difficulty is summed up by the fact that the bottom half has nations with a total of 20 major titles (11 World Cups and nine Euros), while there is a total of none in the top half.

On a crazy final day of the Euro 2016 group stage in France, teams from the British & Irish isles were left waiting until the very last moments to find out their last-16 fate in the tournament.

One of Belgium, Croatia, Hungary, Northern Ireland, Poland, Portugal, Switzerland and Wales are guaranteed a place in the final - none of whom have a major international honour to their name.

SECRET SCOUT: Sportsmail’s football expert has been busy scrutinising the Euros for prospective Premier League bargains this summer. 

Polish coach Adam Nawalka doesn't want striker Robert Lewandowski compared to Cristiano Ronaldo as the striker faces Switzerland on Saturday having failed to score at Euro 2016.

The underwhelming group-stages are over and Euro 2016's knockout round is underway. Here, Sportsmail columnist MARTIN KEOWN gives his verdict on Saturday's last-16 games.

Switzerland and Poland have both reached the knock-out stage of the European Championship for the first time after finishing runners-up in their respective groups.

Poland are through to the quarter-finals of a European Championship for the first time in their history after defeating Switzerland 5-4 on penalties in Saint Etienne following a 1-1 draw.

CHRIS HATHERALL IN SAINT-ETIENNE: Poland are through to the quarter-finals of a European Championship for the first time in their history after winning on penalties against Switzerland.

After 17 days and 44 matches, Euro 2016 has now reached crunch time with eight teams left to battle it out for glory in France as the tournament reaches the finishing straight.

Despite Real Madrid forward Cristiano Ronaldo so far failing to produce a string of consistent displays, Portugal have recovered from a slow start to earn a place in the quarter-finals.

The Bayern Munich forward is the most fouled player at Euro 2016 and Nawalka thinks his star striker has been marked too tightly in France.

Arkadiusz Milik is looking forward to playing against one of his footballing heroes, Cristiano Ronaldo, when Poland face Portugal in the European Championship quarter-finals in Marseille.

Lewandowski hasn't lit up Euro 2016 and will need to regain his form from qualifying if Poland are to have any chance of getting past Portugal on Thursday.

Cristiano Ronaldo will not be the only superstar on show on Thursday night in Marseille. But Poland's manager, players and supporters are relying on Robert Lewandowski finding his shooting boots.

Portugal will need Cristiano Ronaldo firing on all cylinders on Thursday night if they are to overcome a stubborn Polish side in Marseille.

Cristiano Ronaldo and Portugal are through to the semi-finals of Euro 2016 despite failing to win a game in normal time in the tournament so far.

Renato Sanches insists any criticism of Portugal has no effect on the players as they reached the semi-finals of Euro 2016 after a penalty shoot-out victory over Poland.

IAN LADYMAN AT STADE VELODROME: Cristiano Ronaldo has been here before and made the wrong call. Portugal exited Euro 2012 on penalties to Spain without their great talisman taking a kick.

Poland’s star player Robert Lewandowski was recovering on Friday from a ‘brutal’ end to his side’s run at Euro 2016. The striker's goal was not enough to see his side overcome Portugal.

French side AS Monaco have signed Polish defender Kamil Glik on a four-year deal from Italian side Torino, the clubs confirmed on Monday.

A hat-trick from Robert Lewandowski lifted Poland to a 3-2 victory over Denmark in a thrilling World Cup Group E qualifier in Warsaw on Saturday.

Poland's World Cup qualifier with Romania had to be suspended when a firecracker exploded at the feet of striker Robert Lewandowski. The Bayern Munich man needed medical attention.

Bucharest police have questioned 17 football fans after clashes at the World Cup qualifier between Romania and Poland on Friday.

The Bayern striker, who scored twice in his country's 3-0 World Cup qualifier win over Romania on Friday, will not be in the squad for the friendly against Slovenia after returning to Germany.

Lewandowski's wife, Anna, gave birth to their daughter on Thursday morning and the proud father wasted no time in posting a picture of himself kissing his child on the head.

England booked their place in the semi-finals of the Under 21 European Championship by beating Poland in their last Group A game. Relive the action as it happened here with Tom Farmery.