© AP/Matthias SchraderPeople gather at the railway track in a camp near the Hungarian border with Serbia, in Roszke, southern Hungary, Wednesday, Sept. 9, 2015.
A huge outpouring of sympathy from across Europe has brought dozens of vehicles loaded with aid supplies from Britain, Austria, Germany and elsewhere to the filthy camp in the border town of Roszke.
But while blankets, clothes and food pile up around the muddy fields, doctors say they are worried about the lack of sanitation and medical supplies.
"When you have no running water, no way to clean and people are arriving with contagious diseases, you have a problem," said Teresa Sancristobal, head of the Doctors Without Borders site team.
A priority for the doctors on site is pregnant women, many of whom have walked for weeks on their journey from the warzones of the Middle East.
"We have a lot of pregnant women who are just exhausted and can't take it anymore," said Sarah Schober, 28, a medical student leading a volunteer team from Vienna.
"All we have to give them is magnesium and small doses of schnapps for the cramps, and there are very few field beds for them to rest."
Exhaustion and dehydration are common. One volunteer described finding a 12-year-old girl who had walked several kilometres with a broken knee after being hit by a taxi in Serbia.
An over-stretched UN refugee agency has organised for more toilets and clean-up operations, but faces big challenges as government buses are slow to move refugees on to registration centres, leaving thousands to sleep in the fields every night.
"People are defacating and peeing between tents because there is nowhere to go. With the warmer weather, we are one step away from an epidemic," said Schober.
© AFP/Peter KahalmiA migrant woman holds a child and food in a refugee camp near Roszke, Hungary, at the border with Serbia, on September 11, 2015.
Volunteers have struggled to find storage for all the clothes donated, many of which have ended up strewn around the squalid site.
"We had a 22-tonne truck show up unannounced yesterday," said British volunteer Mark Wade. "That's great but we don't know what to do with it."
And looming over everything is the fear of what happens on Tuesday, when the Hungarian government says it will completely shut the border and arrest anyone who tries to break through.
"We are doing all this planning, but it could all be for nothing come Tuesday," said one charity worker.
Source: Agence France-Presse
Comment: Conditions in Roszke refugee camp in Hungary reminiscent of WWII atrocities