In this task, you are given news articles and you need to generate a highlight, i.e., a short summary, with a maximum length of 10 lines.
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Question: (CNN) -- Two health care workers went to the emergency room with flu-like symptoms after coming into contact with a patient confirmed to have Middle East Respiratory Syndrome, or MERS, officials said Tuesday. The Florida patient represents the second confirmed case of MERS brought into the United States, the Centers for Disease Control and Prevention said Monday. MERS is a mysterious virus that can be fatal, and was first found in the Arabian Peninsula in 2012. One health care worker in Orlando began showing symptoms 72 hours after exposure to the MERS patient but did not meet criteria for admission and was sent home, said Dr. Antonio Crespo, an infectious disease specialist at Dr. P. Phillips Hospital, where the MERS patient is being treated. The health care worker will be monitored and seems to be improving, Crespo said. The other one, whose symptoms began 24 hours after exposure, was admitted to the same hospital, officials said Tuesday at a press conference. "We're just waiting for the results from the testing that was done yesterday to decide about discharge," Crespo said. At-risk workers at home . The two health care workers are among 20 in the Orlando area who may have been exposed to the MERS patient, and they are being tested for the virus, officials said. They were all notified and told to stay home and not work for 14 days, Crespo said. They also should monitor their temperatures and check for possible symptoms such as a cough, sore throat and fever. Five health team members who may be at risk have been identified at Orlando Regional Medical Center and 15 at Dr. P. Phillips Hospital, Crespo said. They were all evaluated for signs and symptoms that would be consistent for MERS. Samples were sent to the state lab for testing, said Dr. Ken Michaels, medical director for occupational health at Orlando Health. "I'm glad to report that I've spoken to most of these team members today. They all report that they're doing great," Michaels said. On the 14th day, everyone involved will be brought back for further testing. Once medically cleared, they can return to work, officials said. Initial testing should be back within the next day or two, Michaels said. MERS: 5 things to know . Two confirmed U.S. cases . The confirmed MERS patient visited Orlando Regional Medical Center on May 5, accompanying another person who was having a medical procedure, officials said. "I think the risk is negligible to those in the waiting room or the radiology area at (Orlando Regional Medical Center)," said Dr. Kevin Sherin of the Florida Department of Health in Orange County. The MERS patient was admitted to Dr. P. Phillips Hospital on May 9. "Before the patient came to the hospital, he was not having a cough," Crespo said. "He was not having respiratory symptoms. So we believe that that makes less risk of transmission to other potential contacts." Officials from the CDC and the Florida Department of Health are investigating the MERS case. During a White House briefing Tuesday, press secretary Jay Carney said President Barack Obama had been briefed on the MERS situation in the United States and that the CDC is taking the lead. The first U.S. case was reported this month in Indiana. That patient was released from a hospital Friday into home isolation, according to state health officials. The Indiana patient was an American health care provider who had been working in Saudi Arabia and was on a planned visit to Indiana to see his family. The Florida patient is also a health care provider who lives and works in Saudi Arabia, said Dr. Anne Schuchat, assistant surgeon general with the U.S. Public Health Service and director of the CDC's National Center for Immunization and Respiratory Diseases. She said that he is not a U.S. citizen and that the Florida case is not linked to the Indiana one. The U.S. Transportation Security Administration will post CDC advisories at more than 20 U.S. airports to alert travelers about the virus. Although there are no recommendations to change travel plans, the signs will advise travelers to the Arabian Peninsula to avoid contact with sick people and wash their hands often. They should contact a doctor if they develop symptoms such as fever, shortness of breath and coughing, the CDC said. "We think it's really critical to avoid overreacting in the community but also avoid under-reacting in the health care environment," Schuchat told CNN. "The reason for the signage is so that we can promptly identify potential cases so that they can be separated from other people." Can SARS lessons prevent a MERS virus outbreak? What is MERS? As of Friday, there have been 538 cases of MERS in 17 countries, including 145 deaths, according to the World Health Organization, Schuchat said. The virus is also known as MERS-CoV since it is a coronavirus, the same group of viruses as the common cold. It attacks the respiratory system, according to the CDC. Symptoms can lead to pneumonia or kidney failure. There is no vaccine or special treatment for MERS. Doctors said they believe the Indiana patient's quick diagnosis and care dramatically increased his chances for getting better. The "risk to the general public remains very low," Schuchat said. In some countries, the virus has spread from person to person, but only in close contact, such as a person who was caring for an ill person. "This virus has not shown the ability to spread easily from person to person in community settings," she said. Out of "an abundance of caution," the CDC has been contacting people who were passengers on the same flights as the two patients with confirmed MERS, Schuchat said. No cases of MERS have been diagnosed as a result of transmission on a plane, the CDC's Dr. Marty Cetron said. The 44-year-old Florida patient traveled on May 1 from Jeddah, Saudi Arabia, to London, then from London to Boston, Boston to Atlanta, and finally Atlanta to Orlando. The man began feeling unwell on the flight from Jeddah, with symptoms including "fever, chills and a slight cough," Schuchat said. Family members of the patient have been tested as well, Crespo said. "The patient has been doing very well," Crespo said. The patient had a low-grade fever of 100.2 on Monday night but has a minimal cough, and he is "in great spirits." MERS mystery: Virus found in camels . CNN's Miriam Falco, Elizabeth Cohen, Jen Christensen, and Athena Jones contributed to this report.

Answer: NEW: TSA will put up advisories about MERS in airports .
Two cases have been confirmed in the U.S.
At least 20 health care workers told to not come to work .
They can return to work after 14 days if medically cleared .


Question: (CNN) -- Each summer, more than 50,000 people pour into a cobblestone square in Tuscany for a gut-wrenching 90-seconds. That's all it takes for the flamboyantly dressed jockeys of Italy's legendary horse race -- Palio di Siena -- to race bareback around the medieval square. It's been called the "most dangerous horse race in the world" -- about as far away as you can get from the genteel green lawns of Britain's Royal Ascot or the multimillion prize money bestowed on America's Kentucky Derby. Now as the dust settles on this year's colorful Palio di Siena, CNN takes a look at five weird and wonderful horse festivals from across the world. Palio di Siena, Italy . On two days each year, the pretty town of Siena in northern Tuscany is transformed into an elaborate medieval race track, with 10 riders careering around the iconic city square three times. Dating back to the 17th century, each rider represents their local neighborhood, competing not just for the coveted victory banner -- but good luck for the coming year. Luminarias Festival, Spain . Fire and horses may seem like an unlikely combination, but that's exactly the dramatic scene which takes place in a small town in central Spain each year. Horse are ridden over blazing tree branches as part of the Luminaries Festival in San Bartolome de Pinares, in an effort to purify and protect the animals. The controversial tradition, which has been criticized by animal welfare groups, dates back 500 years and is held on the eve of Saint Anthony's Day. Watch: From camel racing to prized jockey . White Turf, Switzerland . From fiery Spain to snowy Switzerland -- there's not a bonfire in sight at the glitzy White Turf racing carnival, held on the frozen Lake St Moritz. The remarkable competition includes skijoring, where horses thunder around the icy track while their riders hold on for dear life to a harness at the back, trailing behind on skis. In such extreme weather -- around -20C -- fur coats are the order of the day for the champagne-sipping spectators who are perhaps better known for their luxury lifestyles than racing tips. Pasola Festival, Indonesia . The glitz and glam of snow-capped St Moritz couldn't be further from the spear-wielding horsemen of Indonesia's annual Pasola Festival. The fierce festival -- held on the island of Sumba -- sees two teams go head-to-head on elaborately decorated horses, throwing blunt spears at each other as part of an ancient ritual battle. It is believed that every drop of blood spilled will bring a good harvest. Soma-Nomaoi Festival, Japan . If you like your ancient festivals a little less violent, there's the 1,000-year-old Soma-Nomaoi wild horse chase in central Japan. The three-day festival sees samurai horsemen compete in different challenges -- from racing over a one kilometer track to battling over sacred flags. Dressed in extravagant armor, helmets, and carrying swords, the fantastical warriors appear to have stepped straight out from the 10th Century.

Answer: As the dust settles on Italy's Palio de Siena, CNN looks at wild horse festivals .
Includes fire leaping in Spain and samurai battles in Japan .
A world away from traditional races such as Royal Ascot or Kentucky Derby .
Some ancient horse shows date back to 10th Century .


Question: (CNN) -- One night in late July this year, the Japanese supertanker M. Star was making its way through the Strait of Hormuz -- the chokepoint at the southern tip of the Persian Gulf. It was en route to Japan with 3 million barrels of crude oil. There was a loud thud at the front of the ship. Its hull suffered a substantial square-shaped dent above the waterline. Theories about the cause quickly abounded: a giant wave, a collision with a submarine or another vessel. And then -- six days later -- a militant Sunni group that had been active in Lebanon, Egypt and Jordan claimed it had attacked the ship with an explosives-laden boat. The Abdullah Azzam Brigades said the attack on the M. Star "sought to weaken the infidel global order which is thrust into Muslim lands and which loots its resources." For the Brigades, such an attack was a significant departure from previous targets. To begin with, intelligence analysts were skeptical of the claim. But U.S. officials now say it is credible. "Government and industry sources can confirm that the claim by the Abdullah Azzam brigades ... is valid," the U.S. Department of Transportation's Maritime Administration said in an advisory last week. "The group remains active and can conduct further attacks on vessels in areas in the Strait of Hormuz, southern Arabian Gulf, and western Gulf of Oman,' it said. The Saudis are already anxious about the foothold that al Qaeda has established in neighboring Yemen.  Now the Brigades -- spawned in the squalor of Palestinian refugee camps in Lebanon -- may be an emerging player in the region's terror landscape. The Brigades are named after a Palestinian close to al Qaeda leader Osama bin Laden.  Abdullah Azzam was killed in Pakistan in 1989 by a bomb explosion. The group is led by one Saleh al-Qarawi, who fought U.S. forces in Iraq and got to know al Qaeda's now-dead leader there -- Abu Musab al-Zarqawi. Born in the Saudi city of Barida, al-Qarawi is only 28, but is already on the kingdom's most wanted list. When that list was first published in February 2008, he was described as "one of the key suppliers of facilities, finances, fake documents" for al Qaeda. And he has ambitious aims, telling an extremist website earlier this year: "All the jihadist battlefields now are fields of fighting." The Brigades have certainly shown themselves capable of audacious attacks. They claimed responsibility for an unsuccessful  rocket attack on a U.S. warship anchored in the Jordanian port of Aqaba in 2005, as well as for bombings in 2004 and 2005 aimed at tourists in Egypt's Red Sea resorts. Well over 100 people were killed in those attacks. In the interview he gave to the al-Fajr Media Center, al-Qarawi described how al-Zarqawi had sent him on a mission beyond Iraq. He'd been arrested in Syria and spent a brief spell in a Saudi jail. Describing his priorities, al-Qarawi said they include kidnapping U.S. and British citizens in the Arabian peninsula. "American interests are our most important aims," he said, according to a translation by intelligence website Flashpoint Partners. It is also clear from the interview that al-Qarawi is very much a Sunni purist. He has little time for the Shiite Hezbollah, accusing it of attacking Lebanon's Sunnis. He also accuses Lebanese Shiites of "malice" toward the country's Sunnis. That suggests the Brigades would not have looked to Shiite Iran for help or harbor in attacking the M. Star (even if Saudi officials insist al-Qarawi once operated from Iran.) And it prompts this question: where did that small boat, laden with explosives, come from on the night of July 27 to attack the M. Star? If not Iran, did it set out under cover of darkness from the United Arab Emirates, Oman or even Saudi Arabia -- undetected by authorities?

Answer:
The Abdullah Azzam Brigades may be an emerging player in the Persian Gulf landscape .
The militant Sunni group is named for a Palestinian close to Osama bin Laden .
The group claimed responsibility for an attack on a Japanese supertanker in July .