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The Senate on Wednesday will hold a hearing regarding the safety of vaccines, which will feature appearances by Surgeon General Dr. Jerome Adams and National Institutes of Health Director Dr. Francis Collins.The hearing, hosted by the Senate HELP Committee, will discuss the role of vaccines in preventing infectious disease outbreaks and protecting public health.Wednesday's hearing will also include information on a potential COVID-19 vaccine.Top U.S. health experts like Dr. Anthony Fauci say they are cautiously optimistic that there will be enough evidence to grant Emergency Use Authorization to top vaccine candidates by the end of 2020. However, recent polls indicate that some Americans remain skeptical about vaccines.A recent CBS News poll indicates that just 21% of American voters would receive a COVID-19 if one were made available at no cost. That's down from about 30% earlier this year. Two-thirds of those polled say they feel a vaccine would be "rushed" if a vaccine were made available this year.Fauci has said that if a potential vaccine is 75% effective against the virus, it still may not be effective in promoting inoculation levels necessary for "herd immunity" in the U.S. due to Americans' ongoing skepticism about vaccines.Nine vaccine makers banded together to sign a pledge on Tuesday to say that they will not seek Emergency Use Authorization for their vaccine candidates until scientific methods prove they are safe for widespread use. 1476

The smoke from dozens of wildfires in the western United States is stretching clear across the country — and even pushing into Mexico, Canada and Europe. While the dangerous plumes are forcing people inside along the West Coast, residents thousands of miles away in the East are seeing unusually hazy skies and remarkable sunsets.The wildfires racing across tinder-dry landscape in California, Idaho, Oregon and Washington are extraordinary, but the long reach of their smoke isn’t unprecedented. While there are only small pockets in the southeastern U.S. that are haze free, experts say the smoke poses less of a health concern for those who are farther away.The sun was transformed into a perfect orange orb as it set over New York City on Tuesday. Photographs of it sinking behind the skyline and glinting through tree leaves flooded social media. On Wednesday, New Jersey residents described a yellow tinge to the overcast skies, and weather forecasters were kept busy explaining the phenomenon and making predictions as to how long the conditions would last.On the opposite coast, air quality conditions were among some of the worst ever recorded. Smoke cloaked the Golden Gate Bridge and left Portland and Seattle in an ashy fog, as crews have exhausted themselves trying to keep the flames from consuming more homes and even wider swaths of forest.Satellite images showed that smoke from the wildfires has traveled almost 5,000 miles (8,000 kilometers) to Britain and other parts of northern Europe, scientists said Wednesday.The current weather system, which favors a westerly wind across the higher levels of the atmosphere, is to blame for the reach of the smoke, experts explained.“We always seem, at times, to get the right combination of enough smoke and the upper level jet stream to line up to bring that across the country, so we’re just seeing this again,” said Matt Solum with the National Weather Service’s regional operations center in Salt Lake City, Utah. “It’s definitely not the first time this has happened.”There could be some easing of the haze this weekend as a storm system is expected to move into the Pacific Northwest and could affect the conditions that helped the smoke travel across the country. But Solum said there’s always a chance for more smoke and haze to shift around.“Just due to all the wildfires that are going on, this is likely going to continue for a while,” he said. “You might have ebbs and flows of that smoke just depending on how the upper level winds set up.”Kim Knowlton, a senior scientist with the Natural Resources Defense Council in New York City, said she woke up Wednesday to a red sunrise and more haze.She said millions of people who live beyond the flames can end up dealing with diminished air quality as it’s not uncommon for wildfire smoke to travel hundreds of miles.Although the health impacts are reduced the farther and higher into the atmosphere the smoke travels, Knowlton and her colleagues said the resulting haze can exacerbate existing problems like asthma and add to ozone pollution. 3070

The White House has cut ties with a senior adviser to first lady Melania Trump after it was revealed the aide's firm was paid close to million to plan events around President Donald Trump's inauguration.The first lady's office said in a statement that it ended its contract with Stephanie Winston Wolkoff, who had been working as a special government employee."The Office of the First Lady severed the gratuitous services contract with Ms. Wolkoff. We thank her for her hard work and wish her all the best," said spokeswoman Stephanie Grisham.The New York Times first reported Wolkoff's departure.Inauguration committee tax documents revealed last week showed WIS Media Partners, a company based in Marina Del Ray, California, and founded by Wolkoff, received ,843,509 for "event production services."The roughly million the company received for its work on the inauguration was likely passed through to other vendors and event coordinators. The New York Times reported that Wolkoff personally received .62 million for her work.She told the Times on Monday that most of the million was paid to subcontractors, and that the .62 million was divided among 15 employees. Messages left by CNN with Wolkoff were not immediately returned.Last week, Grisham said Melania Trump "had no involvement" in planning the inauguration and had "no knowledge of how funds were spent."Trump and Wolkoff are longtime friends.  1438

The United States could see an increase in immigrants coming to the country after Hurricanes Irma and Harvey, according to new research from the University of Michigan.According to the study, migrants may find it easier to start over in the United States rather than rebuild from the destruction in their own country.Another reason, according to U-M economists Dean Yang and Parag Mahajan, is that hurricane refugees able to secure green cards or legal permanent residency through their families already established in the country."When there's a bigger stock of previous migrants to the U.S., when someone in their home country is more likely to have a connection to some sort of migrant in the U.S., then the effect of hurricanes on migration is larger," Yang said.The researchers first studied the severity of a hurricane in a given country, using data from meteorological reports to estimate actual damage.Yang and Mahajan then analyzed restricted U.S. Census data from 159 counties over 25 years to see if America saw a rise in immigration following large storms in other countries.The largest effect came from Central America and the Caribbean."These regions get hit a lot by hurricanes that cause severe damage, and there are a lot of Central American and Caribbean immigrants in the U.S. If you're looking for somoene to sponsor you, you actually have that opportunity," Mahajan said.The study cites Hurricane Cesar, which made landfall in Nicaragua in 1996. The hurricane killed 42 people, caused food shortages, .5 million in damage, left 100,000 people homeless. Yang and Mahajan found that in 1996 and 1997, there was a 50 percent increase in legal permanent residencies for Nicaraguans than in 1995."Much of this increase came from immediate relatives of U.S. citizens — parents, spouses and children," Mahajan added. "Repeated, similar responses like this in the data helped us conclude that networks of U.S. citizens from sending countries provide opportunities for family members to escape severe weather events." 2080

The weekslong search for Mollie Tibbetts, a 20-year-old Iowa student who disappeared while jogging, came to a grisly end Tuesday when a man guided investigators to a body in a cornfield.While authorities have yet to confirm the body is Tibbetts, they arrested Cristhian Bahena Rivera, 24, on first-degree murder charges.The discovery dashed the hopes of family and friends who had scoured Poweshiek and nearby counties as rewards grew to nearly 0,000. Tibbetts, officials said, is believed to have been abducted on July 18 as she went out for an evening jog.Rivera, who's an undocumented immigrant, told them Monday that he saw and pursued her, getting out of his car and running beside Tibbetts. She warned him she would call police, officials told reporters Tuesday.The suspect, who said he blacked out at some point, led authorities to the field Tuesday morning, they said. A body, dressed in Tibbetts' clothing, was covered in corn leaves.It is unclear why Rivera killed Tibbetts, said Rick Rahn, special agent in charge at the Iowa Division of Criminal Investigation."I can't really speak to you about the motive," Rahn said. "I can just tell you it seems that he followed her and seemed to be drawn to her on that particular day and for whatever reason he chose to abduct her." 1294