DEL RIO, Texas: Marianela Rojas huddles in prayer with fellow migrants after trudging across a slow-flowing stretch of the Rio Grande and nearly collapsing when she stepped on American soil for the first time. “I won’t say it again,” interrupts a US Border Patrol agent, giving orders in Spanish for Rojas and a group of 14 other Venezuelans to get into a detention van. “Only passports and money in your hands. Everything else — earrings, chains, rings, watches — in your backpacks.” It’s a frequent scene across the US-Mexico border at a time of swelling migration. But these aren’t farmers and low-wage workers from Mexico or Central America, who make up the bulk of those crossing. Among them are bankers, doctors and engineers from Venezuela, and they’re arriving in record numbers as they flee turmoil in the country with the world’s largest oil reserves and pandemic-induced pain across South America. Two days after Rojas crossed, she left detention and got a bus out of the Texas town of Del Rio. The 54-year-old fled hardship in Venezuela a few years ago, leaving a paid-off home and career as an elementary school teacher for a fresh start in Ecuador. But when the housecleaning work she found dried up, she decided to uproot again. “It’s over, it’s all over,” she said on the phone to loved ones. “Everything was perfect. I didn’t stop moving for one second.” Last month, 7,484 Venezuelans were encountered by Border Patrol agents along the US-Mexico border — more than all 14 years for which records exist. The surprise increase is a harbinger of a new type of migration that has caught the Biden administration off guard: pandemic refugees. Many of the nearly 17,306 Venezuelans who have crossed the southern border illegally since January had been living for years in other South American countries, part of an exodus of millions since President Nicolás Maduro took power in 2013. While some are government opponents, the vast majority are escaping long-running economic devastation marked by blackouts and shortages of food and medicine. With the pandemic still raging in parts of South America, they relocated again. Increasingly, they’re being joined at the US border by people from the countries they initially fled to — like Ecuador and Brazil — as well as far-flung nations hit hard by the virus, like India and Uzbekistan. Compared with other migrants, Venezuelans garner certain privileges — a reflection of their firmer financial standing, higher education levels and US policies that have failed to remove Maduro but nonetheless made deportation all but impossible. The vast majority enter the US near Del Rio, a town of 35,000, and don’t evade detention but turn themselves in to seek asylum. Like many of the dozens of Venezuelans The Associated Press spoke to this month in Del Rio, 27-year-old Lis Briceno had already migrated once before. After graduating with a degree in petroleum engineering, she couldn’t get hired in the oil fields near her hometown of Maracaibo without declaring her loyalty to Venezuela’s socialist leadership. So she moved to Chile a few years ago, finding work with a technology company. But as anti-government unrest and the pandemic tanked Chile’s economy, her company shuttered. Briceno sold what she could to raise the $4,000 needed to get to the US “I always thought I’d come here on vacation, to visit the places you see in the movies,” Briceno said. “But doing this? Never.” While Central Americans and others can spend months getting north, most Venezuelans reach the US in as little as four days. “This is a journey they’re definitely prepared for from a financial standpoint,” said Tiffany Burrow, who runs the Val Verde Border Humanitarian Coalition’s shelter in Del Rio, where migrants can eat, clean up and buy bus tickets to US cities. They first fly to Mexico City or Cancun. Smugglers promoting themselves as “travel agencies” on Facebook claim to offer hassle-free transport to the US for about $3,000. The steep price includes a guided sendoff from Ciudad Acuna, where the bulk of Venezuelans cross the Rio Grande and which had been largely spared the violence seen elsewhere on the border. “If you’re a smuggler in the business of moving a commodity — because that’s how they view money, guns, people, drugs and everything they move, as a product — then you want to move it through the safest area possible charging the highest price,” said Austin L. Skero II, chief of the US Border Patrol’s Del Rio sector. Once in the US, Venezuelans tend to fare better than other groups. In March, Biden granted Temporary Protected Status to an estimated 320,000 Venezuelans, protecting them from deportation and allowing them to work legally. Also, Venezuelans requesting asylum — as almost all do — tend to succeed, partly because the US government corroborates reports of political repression. Only 26 percent of asylum requests from Venezuelans have been denied this year, compared with an 80 percent rejection rate for asylum-seekers from poorer, violence-plagued countries in Central America, according to Syracuse University’s Transactional Records Access Clearinghouse. “I can write their asylum requests almost by heart,” said Jodi Goodwin, an immigration attorney in Harlingen, Texas, who has represented over 100 Venezuelans. “These are higher-educated people who can advocate for themselves and tell their story in a chronological, clean way that judges are accustomed to thinking.” Even Venezuelans facing deportation have hope. The Trump administration broke diplomatic relations with Maduro in 2019, so air travel is suspended, even charter flights, making removal next to impossible. Briceno said that if she had stayed in Venezuela, she would earn the equivalent of $50 a month — barely enough to scrape by. “The truth is,” Briceno said, “it’s better to wash toilets here than being an engineer over there.”