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This map from the Ohio Department of Health shows where cases of Hepatitis A have been diagnosed across the state since the beginning of 2018. 154

Thick, black graffiti sprayed onto a Russian polar bear's coat poses an extra threat to an animal already in danger, experts say.Video shared on social media shows a lumbering polar bear whose back had been branded with "T-34," the name of an old Soviet Union tank.The video was posted to Facebook on December 1 by Sergey Kavry, a World Wildlife Fund employee who lives in the remote Russian region.In the comments, Kavry said he obtained the video via WhatsApp from indigenous minorities in Chukotka, in Russia's far east, though it is not clear from the video where it was filmed.Polar bears are having to 620

Tonight marks the fifth Democratic debate of the 2020 election cycle, and the stakes are starting to rise as the Iowa caucus and New Hampshire primary nears.Ten candidates have qualified for this debate, down from last month's debate of 12 candidates.CLICK ON THE PLAYER BELOWThe candidatesFormer Vice President Joe BidenNew Jersey Sen. Cory BookerSouth Bend, Indiana Mayor Pete ButtigiegHawaii Rep. Tulsi GabbardCalifornia Sen. Kamala HarrisMinnesota Sen. Amy KlobucharVermont Sen. Bernie SandersEntrepreneur Tom SteyerMassachusetts Sen. Elizabeth WarrenEntrepreneur Andrew Yang 591

Three American crew members were killed Thursday when a C-130 Hercules aerial water tanker crashed while battling wildfires in southeastern Australia, officials said.New South Wales Premier Gladys Berejiklian confirmed the crash deaths in the state’s Snowy Monaro region, which came as Australia grapples with an unprecedented fire season that has left a large swath of destruction.Coulson Aviation in the U.S. state of Oregon said in a statement that one of its Lockheed large air tankers was lost after it left Richmond in New South Wales with retardant for a firebombing mission. It said the accident was “extensive” but had few other details.“The only thing I have from the field reports are that the plane came down, it’s crashed and there was a large fireball associated with that crash,” said Rural Fire Service Commissioner Shane Fitzsimmons.Foreign Minister Marise Payne said she had conveyed Australia’s condolences to U.S. Ambassador Arthur Culvahouse Jr.“Our hearts go out to their loved ones. They were helping Australia, far from their own homes, an embodiment of the deep friendship between our two countries,” she said in a statement.“Thank you to these three, and to all the brave firefighters from Australia and around the world. Your service and contribution are extraordinary. We are ever grateful,” she added.The tragedy brings the death toll from the blazes to at least 31 since September. The fires have also destroyed more than 2,600 homes and razed more than 10.4 million hectares (25.7 million acres), an area bigger than the U.S. state of Indiana.Coulson grounded other firefighting aircraft as a precaution pending investigation, reducing planes available to firefighters in New South Wales and neighboring Victoria state. The four-propeller Hercules drops more than 15,000 liters (4,000 gallons) of fire retardant in a single pass.Australian Transport Safety Bureau, the national air crash investigator, and state police will investigate the crash site, which firefighters described as an active fire ground.“There is no indication at this stage of what’s caused the accident,” Fitzsimmons said.Berejiklian said there were more than 1,700 volunteers and personnel in the field, and five fires were being described at an “emergency warning” level — the most dangerous on a three-tier scale — across the state and on the fringes of the national capital Canberra.Also Thursday, Canberra Airport closed temporarily because of nearby wildfires, and residents south of the city were told to seek shelter. The airport reopened after several hours with Qantas operating limited services, but Virgin and Singapore Airlines canceled flights for the rest of the day.The blaze started Wednesday but strong winds and high temperatures caused conditions in Canberra to deteriorate. A second fire near the airport that started on Thursday morning is at a “watch and act” level — the middle of the three tiers.Residents in some Canberra suburbs were advised to seek shelter and others to leave immediately.“The defense force is both assisting to a degree and looking to whether that needs to be reinforced,” Chief of Defense Angus Campbell told reporters.“I have people who are both involved as persons who need to be moved from areas and office buildings that are potentially in danger, and also those persons who are part of the (Operation) Bushfire Assist effort,” he said. 3401

TripAdvisor has defended itself against accusations of misleading travelers by failing to stop some of its highest ranked hotels winning their status with fake reviews.UK consumer group Which? Travel analyzed a total of almost 250,000 reviews for the 10 top-ranked hotels in 10 global tourist destinations, from Las Vegas to Cape Town. It found that one in seven of the hotels had "blatant hallmarks" of fake reviews, with others raising "serious concerns."But TripAdvisor called the analysis "flawed" and said its more sophisticated detection tools were able to weed out fraudulent feedback.Which? Travel said that when it reported 15 of the worst cases to TripAdvisor, the reviews giant -- now one of the world's biggest travel websites -- admitted that all but one of the hotels in question had been caught using fake reviews in the past year.Six had previously been penalized, and two had received a "red badge warning" -- where TripAdvisor warns users that the hotel is suspected of using fake reviews, and has "repeatedly failed to remedy its behavior and refuses to cooperate with TripAdvisor's investigators."Yet, Which? Travel said it found that the review patterns had continued unabated despite the measures, and the red badges had been removed.The group has accused TripAdvisor of a "lack of serious ongoing action to address repeated abuse of the system."It says that five-star reviews left by new users who have written no other reviews should be a red flag. Its analysis compared the proportion of first-time five-star reviews with that of first-time three-star reviews, which are less likely to be faked.In total, it studied 247,277 reviews."TripAdvisor's failure to stop fake reviews and take strong action against hotels that abuse the system risks misleading millions of travelers and potentially ruining their holidays," said Which? Travel's Naomi Leach.TripAdvisor has removed hundreds of reviews in light of the investigation, Which? Travel claimed."Striking" evidence of fake reviewsHotels in the Middle East had "striking" amounts of fake positive reviews, according to the research. TripAdvisor docked 730 five-star reviews of the "best" hotel in Jordan following the analysis -- but the hotel has not been given a red badge. It remains in the top 10 in the country.At the top-ranking hotel in Cairo, 79% of five-star reviews came from one-time contributors. Just 14% of three-star reviews came from similar accounts.The hotel has lost its status as a result of the reviews' deletion.Las Vegas was another hotspot for fake reviews. At two of the top-rated hotels, almost half the five-star reviews came from one-time contributors. For a competitor which did not arouse suspicion, the figure was just 3%.Some of the top-ranked hotels in London, Paris, Barcelona and Cape Town "gave reason for suspicion," the research showed, but failed to demonstrate the same patterns across the board.Repeat offendersTripAdvisor called the analysis "based on a flawed understanding of fake review patterns," adding that "it is simply far too simplistic to assume all first-time reviewers are suspicious."It said that Which? Travel did not have access to IP [internet protocol] information or location data, both of which TripAdvisor uses to detect fake reviews."We analyze hundreds of data points about each review -- most of which only we have access to -- and we combine that data with a wealth of knowledge and understanding of review patterns that our team of experts has gained from tracking hundreds of millions of reviews over a near 20-year period," said the company."This includes an ability to track and analyze first-time reviews in far more detail and with far more rigor than Which's team was able to do."Online reviews influence an annual estimated ￡23 billion ( billion) of booking transactions in the UK alone, according to the UK government."Sites like TripAdvisor must do more to ensure the information on their platforms is reliable," said Naomi Leach."If they continue to fall short, they should be compelled to make changes so holidaymakers are no longer at risk of being duped by a flood of fake reviews." 4152

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