A 24-year-old travel influencer was killed after a pickup truck carrying a group of travelers was swept away while crossing a river in Nicaragua.

French traveler Emma Marie Laurent was one of three women who died after the vehicle was caught in strong currents following heavy rainfall, according to news agency Jam Press.

The group was traveling through El Manzano, a community in the northwestern department of Chinandega, when they attempted to cross the Nahualapa River at around 1 a.m. on Oct. 9, the same source reported.

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Recent rainfall had caused the river to rise, creating dangerous conditions before the vehicle attempted to cross.

The driver, identified as Mexican national Martin Gerardo García Girón, reportedly stepped out of the pickup to assess the water level before attempting the crossing, according to Jam Press.

The water reportedly came close to the driver's knees, but the current swept the pickup away and caused it to overturn.

The driver survived, though accounts have differed on whether other passengers also made it to safety, according to Jam Press. 

Authorities were investigating the circumstances surrounding the crossing.

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Nicaraguan co-President Rosario Murillo offered condolences to the victims' families following the deaths.

"This is a tragedy," Murillo said, according to reports. 

"We express our solidarity and our call to remain vigilant and, in the face of such tragedies, to express our full solidarity."

Murillo also warned about the dangers of crossing rivers during Nicaragua's rainy season.

"Rivers are deceptive; one thinks they are calm and, suddenly, the current comes, and we have tragedies like this that bring mourning to families," she said, according to Jam Press.

Laurent had developed an online following by sharing her travels around the world, including glimpses of life on the road from her van.

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She described herself as "your barefoot BFF" on Instagram, where she had nearly 43,000 followers at the time of her death, Jam Press reported.

Laurent appeared to have shared her final social media post on Oct. 2, uploading a video from a recent trip to Portugal.

In the post, she reflected on the importance of appreciating everyday moments.

"I think the most beautiful people, inside and out, are those who know how to admire the world around them," Laurent wrote in French.

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Following news of her death, social media users left messages of remembrance beneath the post.

"Gone far too soon," one person commented.

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"Condolences to the family," another user wrote.

Major U.S. and international airline groups are pushing back against a new Ebola-related travel requirement that will affect millions of people flying into the United States.

Beginning Nov. 3, all passengers on international flights to the U.S. will have to confirm that they have not been in the Democratic Republic of the Congo (DRC) during the previous 21 days, according to the Centers for Disease Control and Prevention (CDC).

The requirement applies to everyone flying into or connecting through the U.S. — including American citizens, green card holders and airline crew members, the CDC said.

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Travelers will have to complete a paper or digital statement before boarding, even if they have never visited the DRC. 

Airlines must collect the forms and keep them for at least 42 days after the flight arrives in the U.S., according to the CDC.

Airlines for America (A4A), which represents major carriers including American, Delta, Southwest, United and JetBlue, is asking the CDC to reconsider the requirement and give airlines more time to prepare, according to an Oct. 26 letter provided to Fox News Digital.

The group said it supports the CDC's public health goals but argued that the new requirement is too broad and is being introduced too quickly.

A4A asked the government for a "more proportionate and measured U.S. response" focused more closely on affected areas and travelers who have recently been there.

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The group also asked for the Nov. 3 start date to be delayed.

"Changes to check-in systems, digital signatures, station procedures and training cannot readily be completed in the allotted time," A4A wrote.

Dr. Tyler Evans, a California-based infectious disease physician and CEO of Wellness Equity Alliance, told Fox News Digital, "This was a step in the right direction, given the fact that we really do have to take this seriously. We have to ensure that this does not cross borders."

He added, "This is the second-largest outbreak of Ebola in history. So this is very serious."

The International Air Transport Association (IATA), which represents more than 370 airlines around the world, has also asked the CDC to reconsider the requirement, Reuters reported.

"It is unreasonable for the U.S. government to require all airlines serving the U.S. market to modify their procedures to accommodate the collection of attestations from each individual (passenger and crew) flying to the United States in less than two weeks," IATA wrote in a letter, according to Reuters.

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A4A is also asking the CDC to exempt airline crew members, arguing that existing aviation documents already contain information about crews and their travel.

The group has requested an exemption for U.S. military passenger charters as well, saying the military already tracks service members' health, safety and whereabouts.

The CDC said the requirement is intended to reduce the risk of Ebola entering the United States through air travel. 

The 21-day period reflects the maximum amount of time it can take for symptoms to appear after exposure.

Anyone who has been in the DRC during that period, including travelers who only passed through an airport there, will not be allowed to board a U.S.-bound flight unless they have a government exemption, the CDC said.

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"Some of the initial symptoms would just be flu-like symptoms. You'll have a high-grade fever, you'll feel sort of fatigued," the doctor said.

"[For] people that ... are asymptomatic, being able to screen is a very effective modality to reduce, to prevent or mitigate further transmission," Evans said.

Evans worked on the Ebola response twice in the past, both in West Africa and in the DRC, the two largest outbreaks in history.

"The reality is Ebola is one of the most infectious and has one of the highest case fatality rates of infectious diseases," Evans said.

But Americans often don't view Ebola as being relevant to them, he said. "When it comes to infectious diseases ... microbes don't sort of respect boundaries."

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Travelers who knowingly provide false information could face prosecution and fines, according to the CDC.

Fox News Digital reached out to the CDC and IATA for further information and comment.

A hidden problem is surfacing regarding certain pilots' behavior.

More than three in four pilots reported having at least one "microsleep" while operating an aircraft in recent weeks, according to a report by aviation consultancy Baines Simmons based on responses from 7,200 pilots across 32 European countries.

The findings were published by the European Cockpit Association (ECA), which represents over 44,000 pilots across Europe, according to a press release.

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The concerns extend beyond brief episodes of sleep in the cockpit. Nearly 39% of pilots said they usually or always did not get enough rest to keep fatigue from building up, according to the report.

The findings also raised questions about whether pilots feel comfortable reporting when they are too tired to fly.

Only 37.2% said they typically report when they are too fatigued to fly, while 24.2% said they do not report it and fly anyway, according to the findings. 

"When pilots fear career consequences, fatigue goes unreported, and the risk returns to the cockpit," Capt. Coen George, an ECA board director, said in the press release.

He warned that the reluctance to speak up could leave airlines unaware of how widespread fatigue is among their crews.

In the United States, the Federal Aviation Administration (FAA) implemented stricter pilot rest and duty requirements in 2012 to address fatigue and improve safety, the agency said in a statement to Fox News Digital.

Under the rules, pilots must receive at least 10 consecutive hours of rest before a flight duty period, including an opportunity for eight uninterrupted hours of sleep. Pilots who feel fatigued or unfit to fly must report it and be removed from duty by the airline, according to the FAA.

Pilot fatigue can be particularly challenging when crews work overnight or travel across multiple time zones.

Matthew "Whiz" Buckley, a former U.S. Navy F/A-18 Hornet fighter pilot who later flew for American Airlines and FedEx, previously told Fox News Digital that having scheduled time off does not necessarily mean a pilot gets enough sleep.

"It's just unnatural to sleep during off-hours," Buckley said.

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Pilots may arrive at a hotel early in the morning and then have to sleep during the day, while long-haul flights can further disrupt normal sleep patterns, Buckley said.

"Where it really takes a toll on the body for pilots is east-west," he said. "When you're crossing multiple time zones, [that's] when your body can really get messed up."

Buckley also emphasized that pilots ultimately have to assess whether they're rested enough to safely operate an aircraft.

"At the end of the day ... you know who determines if a pilot is fit to fly? You," Buckley said.

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Having nearly "77% of respondents [in the new survey] say that they reported micro-sleeping or dozing off while at work is definitely an alarming number, and the industry does need to take note of this," Bobby Laurie, a Pennsylvania-based travel expert and former flight attendant, told Fox News Digital. 

"But it's not necessarily a warning sign that the flight that you've been on had a pilot or both pilots asleep."

He said that while there are things the industry can do to "rectify this problem," travelers, too, should take note of a few things. 

"If you find yourself at the airport, and the departure board is saying you're delayed due to crew rest … you need to realize that the delay is posted for safety reasons. You might not have gotten to your destination in one piece if those crew members did not get the rest they needed," he said. 

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Fox News Digital previously reported that rest requirements for flight attendants have faced scrutiny in the U.S.

The FAA recently proposed a nationwide rule that would prevent state and local governments from setting separate meal and rest-break requirements for flight attendants and pilots.

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Major flight attendant unions opposed the proposal, arguing that some crew members already work for hours without enough opportunities to eat, drink or use the restroom.

Fox News Digital reached out to Baines Simmons and Flight Safety Foundation for comment.