D.A. Henderson

D.A. Henderson, MD, MPH

Distinguished Scholar

- Professional Profile
Selected Publications
- Congressional Testimony and Briefings

  
In the News

Eradicating polio: late? Or never? The Economist. (7-21-2011): Dr. D.A. Henderson is mentioned in this article.

Health officials not on track to eradicate polio, by Maria Cheng. Associated Press. (7-20-2011): Dr. D. A. Henderson comments about a new report that assesses the status of polio eradication efforts, "It's very useful to get a reality check.”

Could bin Laden hunt lead to more polio? CNN. (07-13-2011): Amid concern that a CIA ruse could hamper polio eradication efforts, Dr. D.A. Henderson comments “Frankly, I doubt the CIA caper would have any negative effects on the polio program.”

Shot in the dark, by Charles Kenny. Foreign Policy. (06-27-2011): An article about disease eradication written by Dr. D.A. Henderson is referenced. 

Op/Ed: Ridding the world of a terrible virus. The Hindu. (06-06-2011): Dr. D.A. Henderson and his book are mentioned in this Op/Ed about destruction of the remaining stocks of smallpox virus.

D.A. Henderson: Lord of the ring, by John Ellis. Business Insider. (06-01-2011): Dr. D.A. Henderson is referenced in this article.

Public health: polio clings on in Pakistan, by Ewen Callaway. Nature. (05-25-2011): Dr. D.A. Henderson offers perspective on polio eradication and the spike in polio cases in Pakistan last year: "To be experiencing polio is kind of a paradox . . . There's something seriously wrong with their health services."

After U.S. pressure, smallpox wins reprieve again, by Martin Enserink. Science. (05-24-2011): Dr. D.A. Henderson comments about the World Health Assembly’s decision to defer the decision to destroy the smallpox virus stocks until 2014: "To me, this is regrettable but perhaps not surprising."

WHO looks at destroying smallpox stocks, by Nell Greenfieldboyce. All Things Considered. National Public Radio. (05-18-2011): Dr. D.A. Henderson comments about the WHO’s upcoming deliberations about whether to destroy the remaining stocks of smallpox virus: ”My guess is that they're going to stall and propose deferring it for another couple of years.”

Pitt scholar: destroy stockpiled strains of smallpox virus, by Andrew Conte. Pittsburgh Tribune-Review. (05-17-2011): Dr. D.A. Henderson comments about the upcoming WHO decision to destroy the remaining stocks of smallpox virus, "The very real reason for wanting to eradicate the virus itself is that it sends a signal to people around the world, to countries around the world, that it is regarded as an extremely dangerous virus, and no one should be working with it."

Smallpox stockpile won't be destroyed soon, U.S. says: Why not?, posted by Ryan Jaslow. CBS News/AP. (05-17-2011): Dr. D.A. Henderson comments on WHO’s deliberations about the fate of the remaining stocks of smallpox virus, "It would be an excellent idea to destroy the smallpox viruses,…this is an organism to be greatly feared."

Destruction of smallpox strains urged. UPI. (05-17-2011): Dr. D.A. Henderson comments about the WHO’s deliberations about the fate of the remaining stocks of smallpox virus, "The very real reason for wanting to eradicate the virus itself is that it sends a signal to people around the world, to countries around the world, that it is regarded as an extremely dangerous virus, and no one should be working with it."

Verdict on smallpox cache near, by Betsy McKay. Wall Street Journal. (05-16-2011): Dr. D.A. Henderson comments about the upcoming WHO decision to destroy the remaining stocks of the smallpox virus: "You just can't provide 100% security," as developing countries fear for the accidental release. 

Should the US and Russia destroy their smallpox stocks?, by James Gallagher. BBC News. (05-16-2011): Dr. D.A. Henderson weighs in on the upcoming WHO decision to destroy the remaining stocks of smallpox virus, “I think it's a very good idea to destroy. At this point the reasons for keeping it are very obscure.”

Pocken Risiko durch restbestände, by Von Focus-Autor Paul Klammer. Online Focus (Germany). (05-16-2011): Dr. D.A. Henderson was interviewed and quoted in this article.

Has the time come to destroy smallpox for good?, by Scott Hensley. National Public Radio. (05-16-2011): Dr. D.A. Henderson comments about the upcoming WHO decision to destroy the remaining stocks of smallpox virus, “At this point the reasons for keeping it are very obscure.”

Why store the smallpox virus? CNN. (05-16-2011): D.A. Henderson is interviewed for this report.

Should the world’s last smallpox virus be destroyed? CNN. (05-16-2011): Dr. D.A. Henderson states that in the event of a smallpox release, "We estimate that 75% of the population is fully susceptible to smallpox."

Experts debate destroying last smallpox viruses, by Maria Cheng. Associated Press (via Huffington Post). (05-13-2011): Dr. D.A. Henderson comments about the upcoming WHO decision to destroy the remaining stocks of the smallpox virus, "We have many ways of looking at smallpox, including gene mapping, that means we don't need the actual (smallpox) virus."

Proposed destruction of smallpox virus creates controversy, by Wynn Parry. Live Science. (04-13-2011): Dr. D.A. Henderson comments about the upcoming WHO decision to destroy the remaining stocks of the smallpox virus: "If it's destroyed, the statement is made that after this date, any scientists, any lab, any country that has that smallpox virus is guilty of crimes against humanity."

Don't let polio eradication slip away again, by Debora Mackenzie. New Scientist. (03-29-2011): Dr. D.A. Henderson notes about the polio eradication campaign:” For an observer like me, it is wonderful to watch.”

9 books Bill Gates thinks you should read. Christian Science Monitor. (03-25-2011): Dr. Henderson's book, Smallpox—The Death of a Disease, is among the books recommended by Bill Gates.

Should last remaining known smallpox virus die?, by Rob Stein. Washington Post. (03-08-2011): Dr. Henderson characterizes smallpox in this article about destroying the last remaining stocks: “There is no other disease that has come close to this through history in terms of killing people . . . It's been disastrous. We have to worry about the threat that it still poses."

Up-to-date information on vaccines and communicable. Efforts renewed to eradicate polio, by Ted Purlain. Vaccine News Daily. (03-01-2011): Dr. Henderson weighs in on the effort to eradicate polio, "I think eradication of the wild polio virus is possible."

Can polio be eradicated? ABC World News. (02-26-2011): Senior Health and Medical Editor Richard Besser interviews D.A. Henderson. Watch the ABC News video.

India brings hope to stalled fight against polio, by Ravi Nessman. Associated Press/Washington Post. (02-20-2011): Dr. Henderson comments about polio eradication, "The magnitude of the task of getting from where we are right now to the end should not be underrated.”

Can polio be eradicated? A skeptic now thinks so, by Donald G. McNeil, Jr. New York Times. (02-14-2011): Dr. Henderson is encouraged about the Gates initiative, resolve, and resources committed to eradicate polio: “I see as much greatly augmented the probability that we can stop wild polio virus.”

Bill Gates: vaccine-autism link 'an absolute lie', by Danielle Dellorto. CNN. 02-04-2011): Dr. Henderson is mentioned in this article.

Gates wants last push to finish off polio, by Kristi Heim. Seattle Times. (01-31-2011): Dr. Henderson weighs in on the effort to eradicate polio: "Can it be done? I'd like to think it would or could, but I think it hangs in the balance."

Critics say Gates’s anti-polio push is misdirected, by Donald G. McNeil, Jr. New York Times. (01-31-2011): Dr. Henderson comments about the surge to eradicate polio, “Fighting polio has always had an emotional factor — the children in braces, the March of Dimes posters… But it doesn’t kill as many as measles. It’s not in the top 20.”

Gates polio goals questioned, by Andrew Jack. Financial Times (London). (01-27-2011): Dr. Henderson remarks on the campaign to eradicate polio, noting that the effort had “become more of a ?movement’ than a public health initiative capable of being examined by objective judgment.”

Smallpox eradication. BBC World Service Radio. (12-09-2010): Dr. Henderson is interviewed.

Virologist helped eradicate smallpox. Wall Street Journal. (11-26-2010): Dr. Henderson commented about the passing of his colleague from the smallpox eradication effort, Dr. Frank Fenner: "He was clearly the world's authority on smallpox and related viruses."

Frank Fenner dies at 95; tracked end of smallpox, by William Grimes. New York Times. (11-25-2010): Dr. Henderson is mentioned in this article the passing of his colleague from the smallpox eradication effort, Dr. Frank Fenner.

Farewell Frank Fenner, eradicator of smallpox, by Debora Mackenzie. New Scientist. (11-22-2010): Dr. Henderson is noted in this article about the passing of his colleague from the smallpox eradication effort, Dr. Frank Fenner.

Resurrecting history's pathogens: no oversight for a dangerous business. Huffington Post. (11-19-2010): Dr. Henderson weighs in on re-creating the 1918 flu strain in a lab, “The potential implications of an infected lab worker —and [of] spread beyond the lab—are terrifying."

Countries celebrate 30th anniversary of smallpox eradication, vaccine revolving fund, and look ahead to new challenges. PAHO. (09-28-2010): Dr. Henderson talks about the World Health Organization’s smallpox eradication program “Lest we forget, this was a disease more feared than any pestilence or plague. Three hundred million died from it in the 20th Century, and in our quest to eradicate it, national antipathies were set aside, even in the Cold War.”

WHO prepares to consider smallpox eradication again, Global Security Newswire/Medill News Service. (08-26-2010): Dr. Henderson discusses the role of the U.S. and Russia in the global eradication of smallpox, "We were the ones who really suffered for this disease and worked to get rid of it."

Smallpox stores stir controversy, by Emmarie Huetteman. UPI/Medill News Service. (08-24-2010): Dr. Henderson discusses the role of the U.S. and Russia in the global eradication of smallpox, "We were the ones who really suffered for this disease and worked to get rid of it."

World Health Organization scientists linked to swine flu vaccine makers; Investigation raises questions about WHO's handling of H1N1 pandemic, by Todd Neale. Medpage Today /ABC News. (06-05-2010): Dr. D.A. Henderson weighs in on criticism about the WHO guidelines for the use of antivirals and vaccines for H1N1: “Each national body and expert group is more comfortable ascribing mistakes in strategy or policy to someone else. WHO is a handy whipping post. I would characterize this focus on WHO as a 'cheap shot.'“

WHO says H1N1 flu still a pandemic: international agency says swine flu is still infecting people, but virus is past peak, by Lauren Cox. ABCNEWS.com , (06-03-2010): In response WHO’s announcement that H1N1 influenza remains pandemic, Dr. Henderson comments "The 'pandemic' refers to the large numbers of influenza epidemics occurring coincident with the spread of the new strain."

Age profile of H1N1 cases sparks discussion of 'original antigenic sin,' by Robert Roos. CIDRAP News. (05-28-2010): A letter written by Drs. Amesh Adalja and D.A. Henderson that was published in Emerging Infectious Diseases is mentioned in this article.

New strategy may be last shot to get rid of polio, by Maria Cheng. Associated Press. (05-20-2010): In response to the unveiling of a new strategy to eradicate polio, Dr. D.A. Henderson comments, “I'm not sure how the new strategy differs from the ones adopted in 2007, 2004, and 1999.”

The death of a disease, by D.A. Henderson. Global Health Magazine. (05-11-2010): Dr. Henderson authors an article that recounts the World Health Organization’s global smallpox eradication campaign.

The man who defeated smallpox, by David Hoffman. Foreign Policy. (05-05-2010): Dr. Henderson discusses the World Health Organization’s global smallpox eradication program and his book titled, Smallpox—The Death of a Disease.

A campaign shows signs of progress against polio, by Celia W. Dugger. The New York Times. (04-12-2010): Dr. Henderson was quoted in this article.

Guinea worm a greater challenge than smallpox, by Madison Park. CNN. (04-06-2010): Dr. Henderson comments about Guinea worm eradication efforts: "I am persuaded that the Guinea worm effort is entirely possible…It's going to be difficult because most of the problem is in southern Sudan where there is lot of hostility and fighting."

Tragedy of individual Haitians risks overshadowing chronic health problems, by Alfred Sommer. Washington Post. (02-22-2010): Dr. Henderson is mentioned in this article.

Analysis: swine flu is not just a hoax by big pharma, by Debora Mackenzie. New Scientist. (01-9-2010): Dr. Henderson comments about the 1957 flu epidemic, "A quarter of Americans had flu, and there were excess deaths. But for one watching from close range, it did little more than disrupt school football schedules."

Delaware health: officials warn of swine flu resurgence; Asian flu of 1957 serves as a cautionary tale, by Hiran Ratnayake. The News Journal (Wilmington, DE). (01-17-2010): Dr. Henderson notes the similarities between the 1957 flu pandemic and the 2009 H1N1 pandemic, "It was remarkably similar to the one we're seeing today… It's almost like you're running the same film a second time."

Book review: Smallpox — the death of a disease: the inside story of eradicating a worldwide killer, by D.A. Henderson, review by Nathan Seppa. Science. (11-21-2009): Review of Dr. Henderson’s book, Smallpox—The Death of a Disease.

Book recounts challenges of eradicating smallpox. Talk of the Nation: Science Friday, hosted by Ira Flatow. National Public Radio (NPR). (11-20-2009): Dr. Henderson is interviewed about his book, Smallpox—The Death of a Disease.

Philanthropy: the giving chain, by Heidi Brown and Joan Indiana Rigdon. Forbes. (11-16-2009): Dr. Helene D. Gayle, president and CEO of CARE, recalls that a commencement address delivered years ago by Dr. Henderson was the “aha moment” that eventually led her to pursue a career in public health.

Chasing smallpox: a global race. Weill Cornell News. (November 2009): The article features Dr. Henderson, highlighting the WHO’s global smallpox eradication program and book, Smallpox—The Death of a Disease.

Analysis—US government faces no-win fight with flu. Reuters. (10-28-2009): Dr. Henderson comments about national planning for epidemic response, "If one anticipates a potential disaster and is successful in having enough done to head it off, there is criticism of the energy and money expended for something that didn't happen."

Library corner: epidemics of past put swine flu to shame, by Chris Skaugset. The Daily News (Columbia, WA). (10-11-2009): This article refers to Dr. Henderson's recently published book, Smallpox—The Death of a Disease.

Lessons from the flu of '57; pandemic spread quickly among young people, by David Brown. Washington Post. (08-25-2009): Dr. Henderson recalls the public health response to the 1957 flu pandemic, and a decision to not to cancel a boyscout jamboree being held in Valley Forge, "We decided the amount of contact would be limited."

Drastic measure? Officials consider early roll-out of swine flu vaccine: influenza experts disagree over need to move quickly on vaccine given dire predictions, by Dan Childs. ABC News Medical Unit. (08-25-2009): Dr. Henderson weighs in on the government’s plan to “fill and finish” batches of H1N1 vaccine in 15 microgram doses: "I think this is a good idea if it can be done . . . The only problem is that the individual may receive a less potent vaccine that will be less effective. Is it better to have this than no vaccine at all? I think so."

Pandemics; 1957-58 flu pandemic can provide clues to planning for H1N1. Medical Letter on the CDC & FDA. (08-23-2009): Dr. Henderson discusses H1N1 response: "There is need for an understanding in national policy circles of the options for dealing with a pandemic, and time is short if states and local communities are going to be prepared."

Leading the fight against smallpox, by John Carmody. Nature. (08-20-2009): The article reviews Dr. Henderson's recently published book, Smallpox: The Death of a Disease.

We can't be sure if this is a pandemic, or just the flu, by Helen Branswell. The Canadian Press. (08-18-2009): Dr. Henderson commented about the swine flu pandemic, "I think that what we've seen in '57 and what we see now are very similar.''

"Smallpox -- the death of a disease." AmNews. (08-17-2009): The article provides an excerpt from Dr. D.A. Henderson's recently published book, Smallpox: The Death of a Disease.

7 Diseases we'd forgotten about -- until they returned: bubonic plague, leprosy, TB still around, by Joseph Brownstein. ABC News Medical Unit. (08-14-2009): Dr. Henderson notes that, unlike smallpox, eradication of many of these diseases is not likely: "Why not the others? . . . Some because there is an animal reservoir, like plague, or long-term carriers of the disease who can excrete the organism--tuberculosis and leprosy--or diseases for which the vaccine is inadequate to accomplish what we would like to achieve--diptheria and, to some dregree, polio. It is not a simple subject to address."

Misunderstanding of 1918 may lead to faulty assumptions for swine flu: experts, by Helen Branswell. The Canadian Press. (08-13-2009): Dr. Henderson is quoted about a study the Center conducted of the 1957 pandemic: "I think that what we've seen in '57 and what we see now are very similar."

Ele diz que não se deve temer nova gripe e defende restrição do tamiflu, by Reinaldo José Lopes. O Portal de Notícias da Globo. (07-24-2009): Vacina polivalente para gripe pode chegar em dois anos, afirma epidemiologista americano Donald Henderson liderou erradicação da varíola no mundo.

Henderson led WHO's effort to rid the world of smallpox, by Steve Sternberg. USA Today. (06-29-2009): Dr. Henderson is interviewed about his career and his newly released book titled, Smallpox — The Death of a Disease: The Inside Story of Eradicating a Worldwide Killer. Dr. Henderson commented, "Anyone can understand that, if you've been to Africa and Asia and you know how vast the areas are and how limited the public health services were."

New Book: 'Smallpox -- The Death Of A Disease.' Medical News Today. (06-22-2009): Review of Dr. Henderson's newly published book.

?Smallpox -- The Death of a Disease,’ A Q&A With Dr. D.A. Henderson. Los Angeles Times. (06-17-2009): Dr. Henderson discusses the WHO’s global smallpox eradication program and his newly published book.

Pitt professor organized health organization's effort to rid world of smallpox, by Mike Cronin. Pittsburgh Tribune Review. (06-07-2009): Dr. Henderson is interviewed about his career and his newly released book  entitled, "Smallpox — The Death of a Disease: The Inside Story of Eradicating a Worldwide Killer." Dr. Henderson noted, "We took on every challenge you can imagine -- civil war, famine, refugees -- and somehow we were able to get through it."The article also cited the Center for Biosecurity as the source for estimates on federal government spending for civilian biodefense.

UPMC researcher's book explores eradication of smallpox, by Victor Zapana and Martine Powers. Pittsburgh Post-Gazette. (06-01-2009): Dr. Henderson is interviewed about his career and his newly released book entitled, "Smallpox — The Death of a Disease: The Inside Story of Eradicating a Worldwide Killer."

Pitt Professor to hold talk on smallpox book. Buzz Up! Pittsburgh Tribune-Review. (06-01-2009): The article announced Dr. Henderson's presentation and overview of his book, "Smallpox — The Death of a Disease: The Inside Story of Eradicating a Worldwide Killer,"  

CARE President and CEO Helene Gayle challenges Agnes Scott graduates. PR Newswire. (05-10-2009): Dr. Helene D. Gayle, president and CEO of CARE, delivers the 2009 commencement address at Agnes Scott College  and recalls that a commencement address delivered years ago by Dr. Henderson was the “aha moment” that eventually led her to pursue a career in public health.

Education Notebook Section. Montgomery County (MD) Gazette Newspapers. (05-06-2009): Three middle school students received a first place nod for their Junior Group Documentary Project,"D.A. Henderson: Pioneer in Smallpox Eradication"

Disease and terror: The swine flu outbreak caught health officials completely by surprise - just as a bioterror attack would, by D.A. Henderson. Newsweek web exclusive. (04-30-2009): Dr. D.A. Henderson outlines in an OpEd the similarities between flu and bioterrorism response, the factors that characterize how threats unfold, and the challenges that emerging diseases present, and he proposes recommendations for improving response.

WTOP News Radio, Washington, DC. (04-28-2009): Dr. D.A. Henderson was interviewed about U.S. preparedness for a full H1N1 pandemic.

Homeland Security: Inside and Out, hosted by Dave McIntyre and Randy Larsen. Federal News Radio. (03-17-2009): Dr. Henderson provides an update on the publication of his memoir Smallpox: The Death of a Disease: “The book will be coming out in June, and will recount…a kind of inside story of how this [smallpox eradication] was done, with all of the problems one has with working with many different countries—in civil war, and famine, bureaucracy—it’s an illustration of what can be done, but with great difficulty.” “One of the things…I learned was that a lot of our success [in eradicating smallpox] had to do with getting young people involved and giving them the opportunity to take off. They didn’t know what they couldn’t do, and they made a very big difference.” Listen to interview

Ridding the world of polio, hosted by Peter Dobbe. BBC World Service News (Radio). (02-21-2009): Dr. Henderson was interviewed about the WHO’s polio eradication program and the feasibility of the effort. Among other observations, Dr. Henderson noted “I’d be in favor of eradication if I really believed it were possible, but I have my doubts whether . . . you’re really going to be absolutely certain that there is no polio lurking anywhere so that you can stop vaccination.” Listen to interview

Polio’s last stand: Bill Gates is bent on eradicating the disease, but the war isn't going well, by Fred Guterl. Newsweek. (01-22-2009): Dr. Henderson is mentioned as a public health expert who favors control of polio rather than eradication of the disease, an effort which he believes will ultimately fail.

Gates offensive against polio; Foundation antes up another $255M and stresses "The value of eradication," which has remained elusive—but some question justification for keeping costly effort going, by Sandi Doughton. The Seattle Times. (01-22-2009): Dr. Henderson weighs in on the WHO’s polio eradication program: "We've been going at it for 20 years now . . . The question is: Is this the best use of resources?"

Homeland Security Inside and Out, Host: Randy Larsen. KAMU Radio, 90.9 FM. (01-13-2009): Rebroadcast of January 29, 2008, interview with Dr. D.A. Henderson.

D.A. Henderson led global smallpox eradication campaign, by Rosanne Skirble. Voice of America. (01-09-2009): Dr. Henderson is interviewed about his efforts in the World Health Organization's global smallpox eradication program. View on YouTube. 

Troubled life of an anthrax suspect, by Scott Shane. The New York Times. (01-04-2009): Dr. D.A. Henderson is quoted about events following the September 11 attacks, and the growing concern among government officials at that time about the potential for a bioterrorist attack.

Smallpox vaccination could remain potent for decades, researchers find, by Chris Schneidmiller. Global Security Newswire. (12-11-2008): Dr. Henderson comments about a study suggesting that smallpox vaccine confers protection for decades longer than previously believed: “The bottom line on this is quite simple, and that is if we had an outbreak of smallpox we would advise again vaccinating everybody who had any reasonable chance of being in contact with a patient, just as a matter of precaution. . . Here you’ve got a disease with a 30 percent death rate, you don’t want to take any chances.” The Dark Winter exercise of 2001 is also mentioned in this article.

Vaccine findings go against the grain: New data stir up debate over the length of protection afforded by smallpox vaccination. Emerging Health Threats. (12-04-2008): Dr. Henderson weighs in on a study that suggests that smallpox vaccine confers protection for decades longer than previously believed: "I believe more is needed to be known about the Taub laboratory results and to determine how or why these differ so markedly from other studies and actual experience in so many countries during the eradication programmes and for centuries before this.”  

Former Bassett trustee delivers speech on disaster preparedness, by Tom Grace. Oneonta Daily Star. (10-11-2008): Dr. Henderson discusses U.S. preparedness for disasters: “We are better prepared than we were before September 11, 2001, but as often happens, when we get farther away from a disaster, we tend to grow complacent.”

Nagging questions in anthrax case, by Laura Fitzpatrick. TIME. (08-13-2008): Dr. Henderson calls for the FBI to release to the science community the scientific evidence used to close the case on the anthrax attacks of 2001: "You have less confidence in how much [the FBI is] really sharing and how accurate this might be."

Anthrax case leaves three questions unanswered, by Greg Gordon. McClatchy Newspapers (formerly Knight Ridder). (08-08-2008): Dr. Henderson remarks that based on what has been released, the FBI’s case against Ivins "just doesn't add up."

Modest gains against ever-present bioterrorism threat: An attack could be hard to predict with current tools, by Spencer S. Hsu. Washington Post. (08-03-2008): Dr. Henderson notes that “The potential for something to happen is much greater now than it was in 2001, simply because of developments of technology and education.”

WHO announces polio wiped from Somalia: Still, officials worry virus could pop up again; 12 other countries remain. Associated Press. (03-25-2008): With regard to polio eradication in Somalia, Dr. D.A. Henderson commented “We can be optimistic, but I think we should also be very cautious.”

Letter to the editor: increased regulation isn't the answer, by M. Sigmund Shapiro. Journal of Commerce. (03-10-2008): With regard to government security and regulatory policy, the letter cites Dr. Henderson's perspective "that we can only protect ourselves so far, that certain vectors, for example, are impossible to interdict, much less control, so we have to live with the reality of the problem, and go on with our lives."

Five years later, smallpox preparedness improved, by Jeffrey Young. The Hill. (03-06-2008): Dr. Henderson notes that the program to vaccinate healthcare workers failed because "The risk [of a smallpox attack] was a very unclear risk, there’s no question about it.”

Longtime smallpox vaccine is destroyed, by Mike Stobbe. Associated Press. (03-01-2008): Dr. Henderson is cited as a source on the history of Dryvax smallpox vaccine.

Homeland Security Inside and Out. Host: Randy Larsen. KAMU 90.9 FM. (02-19-2008): Radio interview with Dr. Henderson about his experiences leading the WHO's smallpox eradication campaign: "Out total budget from the World Health Assembly was $2.4 million per year. And whatever we could scrounge in terms of getting donations from countries in any way, we did that, but none of them were very forthcoming." Listen to interview

Homeland Security Inside and Out. Host: Randy Larsen. KAMU 90.9 FM. (01-29-2008): Radio interview with Dr. Henderson about the advice he would offer the presidential candidates, advocating strongly for a top level biological scientist to serve as the Head of OSTP: "I think we've had a number of physicists who had experience with nuclear weapons and all that the Cold War implied at that time. We're in a different world now, and we really have a whole different set of problems to look at." Listen to interview

Fishing for a way to change the world; Bush thought his father lacked a grand doctrine. His greatest failures have come from trying to craft one, by Jacob Weisberg. Newsweek. (01-28-2008): Newsweek printed an excerpt from a book entitled The Bush Tragedy, by Jacob Weisberg, in which an interview with Dr. Henderson is referenced. Dr. Henderson recalls advising the vice president, after the anthrax attacks of 2001, that vaccinating the public against smallpox was a bad idea. The 2001 Dark Winter exercise is also referenced in the article.

New anthrax vaccine doomed by lobbying, by David Willman. Los Angeles Times. (12-02-2007): Dr. Henderson recalls a meeting convened the Sunday night following September 11, 2001, “There was intelligence information coming through and some chatter coming through, suggesting there was going to be a second event, that the second event could very likely be a biological event. And anthrax and smallpox were both raised as possibilities.”

Researchers with Fred Hutchinson Cancer Research Center, Seattle, U.S. discuss study findings. NewsRx.com. (10-14-2007): Dr. Henderson is mentioned in this article.

Ohio planning to purchase stockpile of influenza drugs, by Regina McEnery. Plain Dealer (Cleveland). (08-16-2007): Dr. Henderson comments about extending the shelf life of stockpiled antivirals past the date of expiration: ". . . if they are going to be extended, then the drugs have to be kept in conditions that must be carefully monitored—both for temperature and humidity. . . "

Flu studies point to isolation for prevention, reported by Richard Knox. Morning Edition, National Public Radio. (04-03-2007): In a radio interview, Dr. Henderson is quoted: "I was in charge of surveillance at CDC for influenza in 1957. The speed with which that disease spread was just astounding." Listen to interview

Polio eradication plan needs another $1B: WHO official. CBC News. (02-27-2007): Dr. Henderson responds to WHO's classification of polio in Somalia and Ethiopia as imported instead of endemic: "This is a deception."