Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.

[EX Q]: Paragraph: Fitness experts say users of the fitness machine, which is a favorite among Army Rangers, Navy Seals, and “The Biggest Loser” television series, reap total body, calorie-busting rewards. “It’s a great and tough cardio piece,” said Neal Pire, an exercise physiologist with the American College of Sports Medicine. “Picture a step mill that combines the lower and upper body, and you have Jacobs Ladder. Except instead of steps, you have rungs.”  Because the user climbs with arms as well as legs more muscles are working and more calories are burned. “As a rule the more muscle mass you utilize during any activity, the greater the oxygen consumed, which is directly correlated to the calories you consumed,” said Pire, president of Inspire Training Systems, in New Jersey. “Unlike stair climbers, you can’t hold on to the sides.”  Jacobs Ladder was invented by Steve Nichols, a fitness champion who injured his knees and back, according to Bob Palka, president of Jacobs Ladder, LLC. “He wanted to come up with a good workout that didn’t impact back and knees.” said Palka, who bought the patent and assets from Nichols in 1994. “Effectively it’s just climbing a ladder,” Palka said. People using the machine are placed at a 40-degree angle to put the spine in a more neutral position, relieve the back of stress and engage core muscles. Palka said on Jacobs Ladder the person’s body weight is lifted over a 12-inch (30.5-centemeter) step for fuller range of motion than the eight-inches of a step mill. “You control the speed,” he said.” The faster you go the faster the runners (on the ladder) come.”  Palka said about 50 to 60 percent of his Jacobs Ladders go to health clubs; some 10 to 15 percent go to the military and physical therapy facilities, respectively. Jacobs Ladder landed a recurring role on the TV show “The Biggest Loser” after trainer Jillian Michaels fell in love with it. “It tends to get your heart rate up,” said Palka, adding that other users, such as the FBI and the Army Rangers, are drawn to the intensity of the workout. John Trail, general manager of a Fitness First health club in Arlington, Virginia, uses Jacobs Ladder in functional circuit and interval training. “You can go for time or you can go for feet,” said Trail. “It’s not a fast-moving piece, but the fact that you’re using every muscle group means you can do 100 feet, rest, jump off, do 10 kettlebell swings, 10 short interval sprints, and burn a lot more calories than you would on an elliptical.”  Trail said a rock climbing buddy likes to climb Jacobs Ladder wearing a back pack for an endurance workout. A self-described competitive person, Trail has even raced with it. “We have two machines side-by-side, so we’ll go for 1,000 feet as fast as possible,” he said. “In under 10 minutes you can get a really good workout.”  He also uses it on clients with joint issues to get their heart rates up quickly. But despite its virtues, Pire said it’s unlikely Jacobs Ladder will supplant the treadmill anytime soon. “The tougher the machine, the more seldom you see it,” he said. “I haven’t seen many seniors hop on. The older population is concerned about balance and falling. And there’s some skill involved in climbing a ladder. But fans are ardent. “Those who use it are almost religious,” he said. Claim: Jacobs Ladder climbers reap tough fitness rewards.
[EX A]: Jacobs Ladder, a moving, angled, climbing machine, may be named after the Biblical stairway to heaven, but it packs such a challenging workout people have dubbed it the stairway to hell.

[EX Q]: Paragraph: Researchers around the world are working to develop potential treatments or vaccines against the respiratory disease that has killed nearly 47,000 people and infected almost a million in just a few months. A team at the University of Pittsburgh School of Medicine in the United States said they were able to move quickly in developing a potential COVID-19 vaccine after working on other coronaviruses that cause Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS). “These two viruses, which are closely related to SARS-CoV-2 (the new coronavirus causing the COVID-19 pandemic), teach us that a particular protein, called a spike protein, is important for inducing immunity against the virus,” said Andrea Gambotto, an associate professor at Pittsburgh. “We knew exactly where to fight this new virus.”  When tested in mice, the prototype vaccine - which the researchers have called PittCoVacc - generated what they described as “a surge of antibodies” against the new coronavirus  within two weeks. The Pittsburgh researchers cautioned that because the animals have not been tracked for very long as yet, it is too early to say whether and for how long the immune response against COVID-19 lasts. But they said that in comparable tests in mice with their MERS experimental vaccine, a sufficient level of antibodies was produced to neutralize the virus for at least a year. So far, the antibody levels of the SARS-CoV-2 vaccinated animals seem to be following the same trend, they said in peer-reviewed study in the journal EBioMedicine. The team said they hope to start testing the vaccine candidate on people in clinical trials in the next few months. The potential vaccine uses a needle patch design, called a microneedle array, to increase its potential potency. This array is a fingertip-sized patch of 400 tiny needles made out of sugar and the spike protein, Gambotto explained. It is designed to deliver the spike protein pieces into the skin, where the immune reaction is strongest. Claim: Potential COVID-19 vaccine shows promise in mouse study.
[EX A]: Initial tests in mice of a potential COVID-19 vaccine delivered via a fingertip-sized patch have shown it can induce an immune response against the new coronavirus at levels that might prevent infection, U.S. scientists said on Thursday.

[EX Q]: Paragraph: Doctors in India have been successful in treating coronavirus with a combination of drugs (Lopinavir, Retonovir, Oseltamivir along with Chlorphenamine) and are going to suggest the same medicine globally. India’s ministry of health has advised that the anti-HIV drugs, Lopinavir and Retonovir, are used in some groups of Covid-19 patients. But it is unclear how successful this treatment has been. The other two drugs from the claim are not mentioned in their guidance. Researchers at the Erasmus Medical Center claim to have found an antibody against coronavirus. Researchers in the Netherlands have released research, which has not yet been peer-reviewed, on an antibody against the new coronavirus. A 103 year-old Chinese grandmother has made a full recovery from Covid-19 after being treated for 6 days in Wuhan, China This has been widely reported in the media. Apple has reopened all 42 China stores. Correct. On 13 March 2020, Apple announced that it had reopened all 42 stores in mainland China after a closure of almost six weeks. Cleveland Clinic developed a Covid-19 test that gives results in hours, not days. The number of new cases in South Korea is declining. Italy is hit hard, experts say, only because they have the oldest population in Europe. Whilst it is true that an older population has contributed to a high number of deaths in Italy, it may not be the sole reason. Scientists in Israel are likely to announce the development of a coronavirus vaccine. Scientists in Israel and elsewhere are working on developing a vaccination to prevent the spread of the new coronavirus, but it won’t be ready for the public for over a year. Three Maryland coronavirus patients fully recovered and are able to return to everyday life. Correct. On 13 March 2020, Montgomery County, Maryland confirmed that three residents who previously had the virus no longer tested positive. A network of Canadian scientists are making excellent progress in Covid-19 research. At least one group of Canadian scientists has recently announced some progress in understanding Covid-19. A San Diego biotech company is developing a Covid-19 vaccine in collaboration with Duke University and National University of Singapore. Tulsa County's first positive Covid-19 case has recovered. This individual has had two negative tests, which is the indicator of recovery. Correct, this patient has recovered according to official Tulsa County sources. Two negative tests is one of three official indicators of recovery among people with Covid-19 (who showed symptoms). All seven patients who were getting treated for Covid-19 at Safdarjung hospital in New Delhi have recovered. There is a news story reporting that seven patients in this hospital in New Delhi had recovered. However, these were not the only Covid-19 patients in the city. Plasma from newly recovered patients from Covid -19 can treat others infected by Covid-19. This is being used as a treatment in some countries, but clinical trials have not yet proved that this is effective. Claim 1 of 15 Claim: China has closed down its last coronavirus hospital. Not enough new cases to support them.
[EX A]:
This is correct. The last hospitals closed at the start of March 2020.