An outbreak of a mysterious virus has not deterred millions of people in China from packing into crowded trains as they head home for the Lunar New Year -- but some are donning masks as a precaution.
The world's biggest annual travel rush comes as a SARS-like coronavirus has spread from the central city of Wuhan to Beijing, southern Guangdong province and three Asian countries, with more than 200 people stricken including three fatalities.
Scientists have yet to determine if the disease can be transmitted from human to human, which would raise the risk of more people getting sick as they sit next to each other on long rides to their hometowns.
But going back to the countryside or other parts of the country to gather with family is an annual ritual that is impossible to miss -- the country will come to a grinding halt from Friday until Thursday next week as it celebrates the incoming Year of the Rat.
More than 100 million train trips have already been taken since the mass migration began about 10 days ago, the national railway operator said on Sunday.
Lines formed on Monday at ticket booths outside Beijing Railway Station, where commuters -- young and old -- gathered with their luggage and souvenirs.
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Li Yang, 28, an account manager from northern Inner Mongolia region, said it had been five to six years since she returned to her hometown from Beijing.
"It's hard to guard against such viruses," she told AFP.
"Watching the news, I do feel a little worried. But I haven't taken precautionary measures beyond wearing regular masks," she added. "Even if I remained in Beijing, I would have to visit public spaces."
"We're not sure how else we can protect ourselves, but I am generally vigilant," said the 26-year-old. "What else can we do? We still have to go home over the Spring Festival."