By SETH BORENSTEIN and JENNIFER AGIESTA, Associated Press

 WASHINGTON (AP) — Few Americans question that smoking causes cancer. But they express bigger doubts as concepts that scientists consider to be truths get further from our own experiences and the present time, an Associated Press-GfK poll found.

 Americans have more skepticism than confidence in global warming, the age of the Earth and evolution and have the most trouble believing a Big Bang created the universe 13.8 billion years ago.

 Rather than quizzing scientific knowledge, the survey asked people to rate their confidence in several statements about science and medicine.

On some, there’s broad acceptance. Just 4 percent doubt that smoking causes cancer, 6 percent question whether mental illness is a medical condition that affects the brain and 8 percent are skeptical there’s a genetic code inside our cells. More — 15 percent — have doubts about the safety and efficacy of childhood vaccines.

About 4 in 10 say they are not too confident or outright disbelieve that the earth is warming, mostly a result of man-made heat-trapping gases, that the Earth is 4.5 billion years old or that life on Earth evolved through a process of natural selection, though most were at least somewhat confident in each of those concepts. But a narrow majority — 51 percent — questions the Big Bang theory.

Those results depress and upset some of America’s top scientists, including several Nobel Prize winners, who vouched for the science in the statements tested, calling them settled scientific facts.

“Science ignorance is pervasive in our society, and these attitudes are reinforced when some of our leaders are openly antagonistic to established facts,” said 2013 Nobel Prize in medicine winner Randy Schekman of the University of California, Berkeley.

The poll highlights “the iron triangle of science, religion and politics,” said Anthony Leiserowitz, director of the Yale Project on Climate Change Communication.

And scientists know they’ve got the shakiest leg in the triangle.

To the public “most often values and beliefs trump science” when they conflict, said Alan Leshner, chief executive of the world’s largest scientific society, the American Association for the Advancement of Science.

Political values were closely tied to views on science in the poll, with Democrats more apt than Republicans to express confidence in evolution, the Big Bang, the age of the Earth and climate change.

Religious values are similarly important.

Confidence in evolution, the Big Bang, the age of the Earth and climate change decline sharply as faith in a supreme being rises, according to the poll. Likewise, those who regularly attend religious services or are evangelical Christians express much greater doubts about scientific concepts they may see as contradictory to their faith.

“When you are putting up facts against faith, facts can’t argue against faith,” said 2012 Nobel Prize winning biochemistry professor Robert Lefkowitz of Duke University. “It makes sense now that science would have made no headway because faith is untestable.”

But evolution, the age of the Earth and the Big Bang are all compatible with God, except to Bible literalists, said Francisco Ayala, a former priest and professor of biology, philosophy and logic at the University of California, Irvine. And Darrel Falk, a biology professor at Point Loma Nazarene University and an evangelical Christian, agreed, adding: “The story of the cosmos and the Big Bang of creation is not inconsistent with the message of Genesis 1, and there is much profound biblical scholarship to demonstrate this.”

Beyond religious belief, views on science may be tied to what we see with our own eyes. The closer an issue is to our bodies and the less complicated, the easier it is for people to believe, said John Staudenmaier, a Jesuit priest and historian of technology at the University of Detroit Mercy.

Marsha Brooks, a 59-year-old nanny who lives in Washington, D.C., said she’s certain smoking causes cancer because she saw her mother, aunts and uncles, all smokers, die of cancer. But when it comes to the universe beginning with a Big Bang or the Earth being about 4.5 billion years old, she has doubts. She explained: “It could be a lack of knowledge. It seems so far” away.

Jorge Delarosa, a 39-year-old architect from Bridgewater, N.J., pointed to a warm 2012 without a winter and said, “I feel the change. There must be a reason.” But when it came to Earth’s beginnings 4.5 billion years ago, he has doubts simply because “I wasn’t there.”

Experience and faith aren’t the only things affecting people’s views on science. Duke University’s Lefkowitz sees “the force of concerted campaigns to discredit scientific fact” as a more striking factor, citing significant interest groups — political, business and religious — campaigning against scientific truths on vaccines, climate change and evolution.

Yale’s Leiserowitz agreed but noted sometimes science wins out even against well-financed and loud opposition, as with smoking.

Widespread belief that smoking causes cancer “has come about because of very public, very focused public health campaigns,” AAAS’s Leshner said. A former acting director of the National Institute of Mental Health, Leshner said he was encouraged by the public’s acceptance that mental illness is a brain disease, something few believed 25 years ago, before just such a campaign.

That gives Leiserowitz hope for a greater public acceptance of climate change, but he fears it may be too late to do anything about it.

The AP-GfK Poll was conducted March 20-24, 2014, using KnowledgePanel, GfK’s probability-based online panel designed to be representative of the U.S. population. It involved online interviews with 1,012 adults and has a margin of sampling error of plus or minus 3.4 percentage points for all respondents.

Respondents were first selected randomly using phone or mail survey methods and were later interviewed online. People selected for KnowledgePanel who didn’t otherwise have access to the Internet were provided with the ability to access the Internet at no cost to them.

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On Twitter, follow AP Science Writer Seth Borenstein at http://twitter.com/borenbears and AP Director of Polling Jennifer Agiesta at http://www.twitter.com/JennAgiesta .

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Online:

AP-GfK Poll: http://www.ap-gfkpoll.com

AP-GfK Poll: Disapproval, doubt dominate on Ebola

By LAURAN NEERGAARD and EMILY SWANSON

WASHINGTON (AP) — Americans have at least some confidence that the U.S. health care system will prevent Ebola from spreading in this country but generally disapprove of the way President Barack Obama and the Centers for Disease Control and Prevention have handled the crisis so far.

Most disapprove of Obama’s handling of the Ebola outbreak, according to an Associated Press-GfK Poll. Just 1 in 5 approve of the CDC’s work on Ebola so far, and only 3 in 10 say they trust that public health officials are sharing complete and accurate information about the virus. And only 18 percent have deep confidence that local hospitals could safely treat a patient with Ebola.

Amid worry here, most Americans say the U.S. also should be doing more to stop Ebola in West Africa. Health authorities have been clear: Until that epidemic ends, travelers could unknowingly carry the virus anywhere.

“It seems to me we have a crisis of two things. We have a crisis of science, and either people don’t understand it or … they don’t believe it,” said Dr. Joseph McCormick, an Ebola expert at the University of Texas School of Public Health. And, “we have a crisis in confidence in government.”

Some findings from the AP-GfK poll:

HEALTH CARE GETS MIXED REVIEWS

Nearly a quarter of Americans are very confident the U.S. health care system could prevent Ebola from spreading widely, and 40 percent are moderately confident.

But nearly half don’t think their local hospital could safely treat an Ebola case, and 31 percent are only moderately confident that it could.

After all, Thomas Eric Duncan, the first Ebola patient diagnosed in the U.S., at first was mistakenly sent home by a Dallas emergency room, only to return far sicker a few days later. Then, two nurses caring for him somehow became infected. The family of one of the nurses, Amber Vinson, said Wednesday doctors no longer could detect Ebola in her as of Tuesday evening.

Asked how the Centers for Disease Control and Prevention handled those cases, 42 percent of people disapprove and 22 percent approve.

FEAR VS. KNOWLEDGE

Despite months of headlines about Ebola, nearly a quarter of Americans acknowledge they don’t really understand how it spreads. Another 36 percent say they understand it only moderately well.

Ebola doesn’t spread through the air or by casual contact, and patients aren’t contagious until symptoms begin. Ebola spreads through close contact with a symptomatic person’s bodily fluids, such as blood, vomit, feces, urine, saliva, semen or sweat.

People who say they do understand are less concerned about Ebola spreading widely in this country. Among those who feel they have a good grasp on how it spreads, 46 percent are deeply concerned; that rises to 58 percent among those who don’t understand it as well.

Likewise, a third of those with more knowledge of Ebola are confident in the health system’s ability to stem an outbreak, and 27 percent think their local hospital could safely treat it. Among those who don’t understand Ebola, fewer than 1 in 5 shares either confidence.

WHAT SHOULD BE DONE

A whopping 93 percent of people think training of doctors and nurses at local hospitals is necessary to deal with Ebola, with nearly all of them, 78 percent, deeming it a definite need.

Nine out of 10 also think it’s necessary to tighten screening of people entering the U.S. from the outbreak zone, including 69 percent who say that’s definitely needed.

Some would go even further: Almost half say it’s definitely necessary to prevent everyone traveling from places affected by Ebola from entering the U.S. Another 29 percent say it’s probably necessary to do so.

More than 8 in 10 favor sending medical aid to Ebola-stricken countries and increasing government funding to develop vaccines and treatments.

SOME NEW STEPS

The CDC had issued safe-care guidelines to hospitals long before Duncan arrived last month, and it made some changes this week after the unexpected nurse infections. Now, the CDC says hospitals should use full-body garb and hoods and follow rigorous rules in removing the equipment to avoid contamination, with a site manager supervising. Possibly more important, workers should repeatedly practice the donning and doffing and prove they can do it correctly before being allowed near any future patients.

While Duncan wasn’t contagious during his flight, his arrival spurred U.S. officials to begin checking passengers arriving from Liberia, Sierra Leone and Guinea for fever, an early Ebola symptom, just like they’re checked before leaving those countries.

Wednesday, the CDC moved to fill a gap in that screening: Starting next week, all of those travelers must be monitored for symptoms for 21 days, the Ebola incubation period. They’ll be told to take their temperature twice a day and must report the readings to state or local health officials.

That’s not just for West African visitors. It includes U.S. government employees, who had been doing their own 21-day fever watches upon return from fighting the epidemic, as well as doctors and other workers for aid organizations and journalists.

The AP-GfK Poll was conducted Oct. 16-20, using KnowledgePanel, GfK’s probability-based panel designed to be representative of the U.S. population. It involved online interviews with 1,608 adults and has a margin of sampling error of plus or minus 2.8 percentage points for all respondents. Respondents were first selected randomly using phone or mail survey methods and later interviewed online. People selected for KnowledgePanel who didn’t otherwise have access to the Internet were provided with the ability to access the Internet at no cost to them.

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Online:

AP-GfK Poll: http://www.ap-gfkpoll.com


AP-GfK Poll: Americans want tighter Ebola screening, concerned government hasn’t done enough

By LAURAN NEERGAARD and EMILY SWANSON, Associated Press

WASHINGTON (AP) — Americans overwhelmingly want tougher screening for Ebola, according to a poll released as federal health authorities took new steps to do just that.

Many are worried about Ebola spreading here, and two-thirds say the government hasn’t done enough to prevent that from happening, according to an Associated Press-GfK poll.

Some things to know:

THE PUBLIC WANTS MORE TRAVEL SCRUTINY

The AP-GfK poll found 9 out of 10 people — unusually high agreement on any issue — think it’s necessary to tighten screening procedures for people entering the U.S. from the outbreak zone in West Africa, including 69 percent who say it’s definitely needed.

Some would go even further: Almost half say it’s definitely necessary to prevent everyone traveling from places affected by Ebola from entering the U.S. Another 29 percent say it’s probably necessary to do so.

The Centers for Disease Control and Prevention has warned since summer that an infected traveler eventually would arrive in the U.S., and it finally happened last month when Thomas Eric Duncan developed symptoms of Ebola a few days after arriving from Liberia. He died on Oct. 8.

WHAT IS THE GOVERNMENT DOING

While Duncan wasn’t contagious during his flight, his arrival spurred U.S. officials to begin checking passengers arriving from Liberia, Sierra Leone and Guinea for a fever, an early Ebola symptom, just like they’re checked before leaving those countries.

The AP-GfK poll suggested that wasn’t enough.

Wednesday, the CDC moved to fill a gap in that screening: Starting next week, all of those travelers must be monitored for symptoms for 21 days, the Ebola incubation period. They’ll be told to take their temperature twice a day and must report the readings to state or local health officials.

That’s not just for West African visitors. It includes U.S. government employees, who had been doing their own 21-day fever watches upon return from fighting the epidemic, as well as doctors and other workers for aid organizations, and journalists.

WHY NOT A TRAVEL BAN

The Obama administration says that’s not on the table. Already, there are no direct flights to the U.S. from the outbreak zone, and the airport with the most travelers from West Africa — New York’s Kennedy airport — has averaged 34 travelers a day since entry screening began. Health experts say a travel ban would prevent medical supplies and health workers from reaching West Africa, and could drive travelers underground and hinder screening of potential Ebola carriers.

AMERICANS FEAR EBOLA’S SPREAD HERE

Nearly half of Americans are very or extremely concerned that Ebola will spread widely in the U.S. After all, two nurses caught it while caring for Duncan.

Health experts had hoped that fear would start to dwindle, considering that people who shared an apartment with Duncan while he was sick emerged healthy from quarantine this week — showing the virus isn’t all that easy to catch.

FEAR VS. KNOWLEDGE

But despite months of headlines about Ebola, nearly a quarter of Americans acknowledge they don’t really understand how Ebola spreads. Another 36 percent say they understand it only moderately well.

People who say they do are less concerned about Ebola spreading widely in this country. Among those who feel they have a good grasp on how it spreads, 46 percent are deeply concerned; that rises to 58 percent among those who don’t understand it as well.

Ebola doesn’t spread through the air or by casual contact, and patients aren’t contagious until symptoms begin. Ebola spreads through close contact with a symptomatic person’s bodily fluids, such as blood, vomit, feces, urine, saliva, semen or sweat.

The AP-GfK Poll was conducted Oct. 16-20, using KnowledgePanel, GfK’s probability-based panel designed to be representative of the U.S. population. It involved online interviews with 1,608 adults, and has a margin of sampling error of plus or minus 2.8 percentage points for all respondents. Respondents were first selected randomly using phone or mail survey methods, and later interviewed online. People selected for KnowledgePanel who didn’t otherwise have access to the Internet were provided with the ability to access the Internet at no cost to them.

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Online:

AP-GfK Poll: http://www.ap-gfkpoll.com