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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.
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Paragraph: The Food and Drug Administration approved Medtronic’s CoreValve system based on U.S. clinical trials in which it was shown to be safe and effective while demonstrating low rates of stroke and valve leakage, the company said. CoreValve, in which the replacement valve is threaded into place through an artery using a catheter, spares patients chest-cracking surgery. The system has been available since 2007 in Europe, where it is not uncommon for medical devices to win approval several years ahead of the United States. Claim: U.S. FDA approves Medtronic heart valve replacement system.
answer:
Medtronic Inc’s non-invasive systems for replacing diseased heart valves won U.S. approval for use in patients deemed too frail to endure traditional open heart surgery, the U.S. medical device maker said on Friday.


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Paragraph: A 38-year-old man from Zunyi city died last Thursday, Xinhua said, citing health authorities in Guizhou. Xinhua said it was the first human case of H7N9 in Guizhou this year. Last Friday, China said a 38-year-old man in eastern Fujian province died from H7N9. The World Health Organisation (WHO) said last week that seven more people in China had been found to be infected with the H7N9 strain of bird flu in the previous week, taking to around 150 the total number of cases so far. The H7N9 bird flu emerged last year in China and has infected around 150 people there and in Taiwan and Hong Kong, killing at least 45 of them. Experts say there is no evidence as yet of any easy or sustained person-to person transmission of the strain. But an early scientific analysis of probable transmission of the new flu from person to person, published last August, gave the strongest proof yet that it can at times jump between people and so could cause a human pandemic. The WHO said the source of the human infections was still being investigated. It stressed that it does not advise any special screening for people going in and out of China, nor does it recommend any travel or trade curbs. Claim: China reports second H7N9 bird flu death in a week.
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China reported one more death from the H7N9 strain of bird flu in southwestern Guizhou province, state news agency Xinhua said on Monday, in the second death from the virus in the past week.


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Paragraph: In late May, North Korea reported an outbreak of African swine fever (ASF) to the World Organisation for Animal Health (OIE), South Korea’s agriculture ministry said but the North has not made any official comment on its outbreak. North Korea’s Rodong Sinmun newspaper said on Wednesday nationwide preventive measures are being carried out to contain the virus, quoting North Korean leader Kim Jong Un as saying “prevention is the key to production in livestock industry”. “Increasing livestock production goes hand in hand with raising farm animals safe from various diseases,” said Kim according to the newspaper. “Once highly contagious diseases like African swine fever are spread .... herds of farm animals could die.”   Preventative measures include disinfecting farms and restricting sales of pork and processed meat, the newspaper said. North Korea raises mainly chicken, ducks and rabbits. Its pig population was 2.6 million as of 2017, according to data from Statistics Korea. In the wake of the North’s outbreak, South Korea has stepped up disinfection measures near the shared border to keep the viral disease spreading to the South. So far, no further cases have been reported in North Korea. African swine fever (ASF) is fatal and highly contagious to pigs and wild boards, but it does not affect humans. Since the first outbreak of ASF in East Asia was reported in China in early August last year, the virus has spread across China including Vietnam. Claim: North Korea steps up measures to prevent spread of African swine fever.
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North Korea has stepped up measures to prevent the spread of the highly contagious and deadly African swine fever, its main state newspaper said on Wednesday, breaking its silence on the outbreak which was first reported in late May.