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.

Input: Consider Input: Paragraph: The new measures may include screening air travelers for fever when they arrive in the United States from the worst-stricken countries in West Africa, on direct or indirect flights, Schumer said in a statement. He said U.S. Centers for Disease Control and Prevention (CDC) Director Dr. Thomas Frieden told him the agency might adopt some of the recommendations Schumer had made on Ebola screening over the weekend. Those included having the CDC and Customs and Border Protection conduct intense health screening of workers at U.S. ports of entry. The New York Democrat also urged the Department of Homeland Security to create a database of people flying to and from West Africa, which would be shared with hospitals around the country. “The CDC has been doing a very good job thus far in combating the threat, but you can’t be too careful when it comes to stopping a deadly epidemic,” Schumer said in the statement. The outbreak has killed at least 3,439 people out of 7,492 confirmed, probable and suspected cases since it emerged in Guinea in March, in the worst Ebola epidemic on record. Along with Guinea, the worst-hit countries have been Sierra Leone and Ebola. The disease has also spread to Nigeria and Senegal, but is considered contained there. A man who traveled to Dallas from Liberia last week became the first patient diagnosed with the disease on U.S. soil. In Spain, officials reported on Monday that a nurse had become the first person infected with the hemorrhagic virus in Europe. White House spokesman Josh Earnest said the administration had confidence in the system as it exists but was working on additional safety protocols that would be announced in the coming days. “The president’s team is hard at work on developing additional protocols for additional screening measures,” Earnest told reporters on Air Force One. Claim: U.S. to require tougher Ebola screening at airports: senator.

Output: U.S. health officials are preparing to require tougher Ebola screening at American airports this week to keep the deadly virus from spreading to this country, Senator Chuck Schumer said on Tuesday.


Input: Consider Input: Paragraph: Pfizer shares were up nearly 4 percent on positive findings for the oral treatment, called palbociclib, one of the company’s most important experimental drugs that some analysts believe could eventually claim annual sales of more than $5 billion, if approved. The trial tested the pill in post-menopausal patients with locally advanced or newly diagnosed breast cancer that had spread to other parts of the body. “We are delighted with the final data,” Pfizer said in a release, adding the company will discuss the successful data on progression-free survival with the U.S. Food and Drug Administration “to determine next steps” for palbociclib. A secondary goal of the study is to determine whether palbociclib can prolong overall survival. But Pfizer spokeswoman Sally Beatty said the company does not yet have such data, because it takes longer periods to follow patients and gauge survival trends. Although Pfizer is conducting two larger late-stage trials of palbociclib, ISI Group analyst Mark Schoenebaum noted the company has previously said it might discuss with the FDA the potential to seek approval of the medicine based upon mid-stage trial data, if the data warranted. Palbociclib, which blocks enzymes known as cyclin-dependent kinases (CDKs) 4 and 6, was taken in combination with a standard treatment called letrozole among women who were estrogen receptor positive - meaning tumors grow in response to estrogen - and HER2-negative, meaning that the HER2 protein is not causing the cancer. Such patients make up about 60 percent of advanced breast cancer cases. Letrozole is the chemical name of Femara, a Novartis AG drug that belongs to a class of treatments called aromatase inhibitors that block production of estrogen. Pfizer on Monday did not present detailed data from the trial results, saying they would be presented at a scientific meeting in San Diego in April. The success of the trial, called Paloma-1, follows highly favorable interim data that Pfizer unveiled in December 2012. At that point in the study, those taking both palbociclib and letrozole went an average of 26.1 months before tumors worsened. That compared with 7.5 months for those taking letrozole, but not palbociclib. The 18.6-month difference was considered statistically significant. Side effects from palbociclib were similar to those previously reported, Pfizer said on Monday. The earlier interim results had shown that patients taking the drug combination experienced anemia, fatigue and neutropenia - a decline in white blood cells called neutrophils that can put patients at higher risk of infection. Palbociclib was designated a “breakthrough” drug by the FDA last April based on initial data from the trial. The FDA grants “breakthrough” status to drugs that may offer substantial improvement over existing treatments for serious or life-threatening diseases. The status helps to speed up the approval process. Pfizer has started two late-stage trials of the drug - Paloma-2 and Paloma-3 - in patients with advanced breast cancer. Paloma-2 will test the same drug combination, palbociclib and letrozole, as an initial treatment for breast cancer. Paloma-3 will evaluate palbociclib in combination with another hormone therapy, fulvestrant, in women whose cancer has progressed after hormonal therapy. The drug, sold under the brand name Faslodex by AstraZeneca Plc, is called an estrogen receptor antagonist. Companies trying to develop treatments similar to palbociclib include Novartis and Eli Lilly & Co. Breast cancer killed more than 508,000 women worldwide in 2011, according to the World Health Organization. Pfizer shares were up 3.7 percent at $31.53 on Monday morning on the New York Stock Exchange. Claim: Pfizer breast cancer drug succeeds in mid-stage trial.

Output: Pfizer Inc’s experimental breast cancer drug significantly delayed progression of symptoms in a mid-stage trial, meeting the study’s primary goal and keeping Pfizer in the forefront of a race for a new standard of care for the disease.


Input: Consider Input: Paragraph: The fatalities were up from 197 on Friday, with the number of confirmed infections increasing from 12,161. The Alpine country of 8.6 million people is deploying army medical units at hospitals to help in regions like Ticino, which borders hard-hit Italy, and has began tapping its strategic stockpile of pharmaceuticals to cover rising demand. The public has been urged to remain home, while gatherings of more than five people have been banned. Even so, officials said that there is additional capacity in intensive care beds and that while resources including strong painkillers are being stretched, the country’s medical system is holding up. “The worst-case forecasts that were made weeks ago have not materialized,” said Daniel Koch, head of the health ministry’s communicable disease division. Speaking at a news conference in Bern, he said currently 280 people are in intensive care. The country has more than 1,000 ventilators, including those deployed by the Swiss military at make-shift medical facilities set up to handle a possible deluge of patients. “That’s 280 people who are fighting for their lives,” Koch said. Still, “no ICU is overwhelmed. All still have capacity. We can ventilate more people, but we’re hoping that the population remains disciplined. That’s the only way to avoid a situation in which a lot more patients need to be ventilated.”  Like other European countries, Switzerland is pumping money into its crisis-hit economy, and state-backed loans worth 20 billion Swiss francs ($21 billion) were made available on Thursday. By Saturday, about 15,930 companies had completed loan applications, the government said, as the jobless figure rose by 13,500 and 757,000 applications for shorter working hours were submitted, representing some 15% of the country’s total workforce. Finance Minister Ueli Maurer said the government was happy to help with loans, but that the money must be paid back and could not cover income losses. “We are not distributing federal money, but taxpayers’ money,” Maurer told SRF radio. “Many of those who pay taxes are now partially unemployed, their jobs are in question, and now we take the money away from them and distribute it somewhere where there are also problems.”  ($1 = 0.9511 Swiss francs) Claim: Swiss virus death toll hits 235 as official says worst case scenario `not yet materialized'.


Output: The death toll in Switzerland from coronavirus had climbed to 235 while total cases stand at 13,213, the health ministry said on Saturday, though officials said their worst fears have so far not materialized.