How Much Do You Really Know About the Flu?

Yesterday, after giving a talk on social media to a great NYC-based PR firm called Ricochet,I decided to take an uptown trip to visit Professor Vincent Racaniello at Columbia University Medical School to talk about the new applications that we plan to introduce to BioCrowd.

When I arrived at Professor Racaniello’s office, which has an outstanding view of the Hudson River and George Washington Bridge, he was in the middle of taping this week’s This Week in Virology (TWiV) podcast with co-hosts Dick Despommier and Alan Dove. Much to my surprise, Vincent invited me to join the conversation although I am a bacteriologist not a virologist. The podcast was devoted mainly to answering questions that listeners had submitted to the show. One listener alerted us to a post at Newsweek Online entitled “Fight Flu and Falsehoods” while we didn’t agree with the author’s assertion that “that hand washing doesn’t affect the transmissibility of influenza”—it does reduce infections rates of other viruses, bacteria and parasites, so it is a good idea to continue to wash your hands—accompanying the article was an outstanding online quiz that assesses how much you really know about influenza and other viruses. 

I think it would be fun for BioJobBlog readers to take the quiz, report scores and then tabulate the results.

To take the quiz, click here and to report your score click here!  I will tabulate the results and share them in a later post if enough BioJobBlog readers and their friends take!

Until next time

Good Luck and More Luck On the Quiz!!!

 

A Public Health Conundrum: Boys, Cervical Cancer and HPV Vaccines

Late last week, the US Food and Drug Administration (FDA) approved GlaxoSmithKline’s cervical cancer vaccine Cervarix for use in girls and women ages 10 to 25 and also approved Gardasil —Merck’s cervical cancer vaccine previously approved in 2006 for use in girls and women—for boys and men ages 9 to 26. For those of you who may not know, over 99% of human cervical cancers are caused by infections with cancer-causing strains of the human papilloma virus (HPV) which also causes venereal warts. Vaccination with Cervarix protects against cervical cancer by inducing immunity against HPV 16 and 18 (which cause most cervical cancers in developed nations) whereas Gardasil affords protection against HPV 16 and 18 as well as HPV 6 and 11, strains that cause venereal warts (which don’t lead to cancer).

Despite FDA’s approval to vaccinate boys with Gardasil to prevent HPV infections, the Centers for Disease Control’s Advisory Committee on Immunization Practices (ACIP)— which guides national policy on use of vaccines—decided yesterday to recommend the use of the vaccine in girls and women but didn’t fully endorse its use in males. Typically, ACIP recommendations are adopted by professional medical associations and set the standards of practice for physicians. Also, its recommendations play a major role in determining whether or not insurers and third party payors will reimburse patients who are vaccinated. The new recommendations mean, in effect, that physicians and clinics may now administer the vaccine at their discretion to boys and men ages 9 to 26, but they are not expected to offer it. In contrast, vaccination of girls and women ages 10 to 25 will be strongly recommended, readily available and reimbursable. This means that parents may consider the vaccine as an option for their sons, but some health insurers may choose not to cover the shots—an option which is sure to severely limit the numbers of boys and men who are vaccinated with Gardasil.

The ACIP committee decided not to include Gardasil immunization for boys and men on its recommended list because several members, most notably a medical economist, questioned whether vaccinating boys would be cost effective in the long run. At the heart of the debate was whether or not it was appropriate and cost-effective to vaccinate boys for a problem (venereal warts) that can be embarrassing and uncomfortable but is not life-threatening. For those of you who may not know, Gardasil immunization is expensive and requires a series of three injections that cost $130 each ($390 total).  Cervarix, which also requires a series of three injections, is planned to be offered for $385.

Last year in the United States, about 37 percent of girls ages 13 to 17 started the Gardasil vaccine series, a national immunization survey showed, and about half of them completed it. Not a great track record for a vaccine demonstrated to prevent cervical cancer and dramatically reduce the transmission of venereal warts. Nevertheless, yesterday’s decision to recommend vaccination for girls and women but not boys and men makes no sense to me from a public health perspective and it almost smacks of gender bias. Let me explain.

Like all other sexually transmitted diseases (STDs), HPV is transmitted from men to women and visa versa. Based on years of epidemiological studies, the only effective way to reduce the overall incidence of STDs is to implement strategies that prevent infections in both females and males. While boys and men can’t develop cervical cancer, they do contract venereal warts and perhaps, more importantly, can serve as carriers or reservoirs of HPV infection in the population. In other words, infected males (who may or may not show symptoms of HPV infection) still possess the potential to transmit it to sexually-active, unvaccinated girls and women. Consequently, while the incidence of HPV infections may begin to decrease among women after immunization, it will never be completely eliminated and the possibility of developing cervical cancer will continue to be a public health concern.

While the ACIP’s understanding of the transmission of STDs is tragically flawed, its willingness to publicly disclose cost effectiveness as a reason to not endorse HPV vaccination for males is even more egregious! The agency’s decision begs the question: Which is more costly; 10,000 American women developing cervical cancer each year (and countless others going for unnecessary cervical biopsies because of “bad” Pap smears) or a heads up to insurance companies that they ought to cover the costs of male HPV immunizations? 

The ACIP’s reluctance to recommend male HPV vaccination based on economic and health care cost concerns rather than on public health implications is yet another example of how broken the US healthcare system is and how drastically it needs to be reformed. Allowing 3,700 women to die each year in the US from cervical cancer when there is a safe and effective way to prevent these deaths is, in my opinion, unconscionable!

Until next time...

Good Luck and Good Job Hunting!!!!!

 

In a Surprise Move FDA Delays Ruling on Approval of GSK's Anti-Cervical Cancer Vaccine

A spokesperson at the US Food and Drug Administration (FDA) announced today that it decided to delay its decision whether or not to approve GlaxoSmithKline’s (GSK) anti-cervical cancer vaccine Cervarix. The agency was scheduled to announce its ruling Tuesday on whether to approve Cervarix, but a GSK spokeswoman said the review will continue. An agency spokesperson failed to disclose any reasons for the delay because FDA doesn’t comment on ongoing product reviews. This is the second regulatory delay for Cervarix in the past two years.

The delay comes as something of a surprise because earlier this Earlier this month, an outside panel of health experts voted that Cervarix appears safe and effective for girls and women ages 10 to 25. The FDA is not required to follow the group's advice, though it usually does. Cervarix already is approved in nearly 100 other countries, but has been delayed in the U.S. since 2007, when the FDA said it needed additional safety data.

An approval from FDA would allow London-based GSK to compete against Merck's blockbuster vaccine Gardasil, which has been on the US market following its approval in 2006. Based on all available published reports, Cervarix has a similar safety profile and efficacy profile as compared with Gardasil.

One of the issues with Cervarix may be the adjuvant use to formulate the vaccine to bolster anti-HPV immunity. While Merck's Gardasil uses an aluminum salt adjuvant, Cervarix uses a novel adjuvant known as AS04. The agency’s lack of familiarity with AS04 and possible concerns about its safety may be what is delaying the Cervarix decision. 

Stay tuned for further details!

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"The Great Flu" Online Game: Improving Public Health Awareness

The appearance of the Swine Flu aka H1N1 last spring not only created a worldwide panic, it demonstrated to Albert Osterhaus, head of virology at the Erasmus Medical Center in the Netherlands how uninformed the lay public was about viral outbreaks, epidemiology and public health. This prompted Dr. Osterhaus and his colleagues to create a free, online video game called the “The Great Flu” which challenges players to control a new viral pandemic.

As the virus has spread worldwide, countries have tried different methods to slow it down and pharmaceutical companies are now racing to produce a swine flu vaccine (sound familiar?). To fight the emerging outbreak, players use public health measures including setting up surveillance systems, stockpiling antivirals and vaccines, and closing schools and airports. Players also have a limited budget and are warned that "your actions to control the virus cost money, so keep an eye on it." In other words, while the goal is to control the pandemic, there may not be sufficient funds and resources to accomplish those goals!

A running tally of the numbers of people infected and those who have died are displayed above the budget. Newspaper stories about the deadly virus and the global response to it — like riots breaking out worldwide — pop up to help players monitor the outbreak and plan their next moves. Messages from governments mirror the difficulties faced by international agencies like WHO that are responsible for containing worldwide epidemics. For example, when players set up costly surveillance systems, sometimes participating governments will send a message "we will comply with your directions...but we must inform you that the political support for this action is low in this region. Therefore, the effectiveness of the system to control the outbreak may differ from your expectations."

The goal of the game is make the lay public aware of the difficulties that public health officials encounter during pandemics and the tight rope they sometimes must walk to insure that the virus is contained and doesn’t continue to spread. To test your skill level at controlling pandemics, you can choose different viruses (which range from easy to difficult to manage) at the beginning of the game.

I think “The Great Flu” is a great way to educate the public about infectious diseases and epidemiology and have fun at the same time. If you are interested in more sinister online swine flu games check this out.  Who said learning science has to be tedious and dull?

Until next time...


Good Luck and Good Virus Hunting!!!!!

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The Swine Flu Pandemic of 2009: Much Ado About Nothing?

A quick perusal of the media coverage of the swine flu outbreak of 2009 would lead many to conclude that this outbreak has the potential to rival or surpass the 1918 flu pandemic—widely regarded as the worst influenza outbreak in history. While the emergence of a new H1N1 swine flu variant is significant note worthy— and has possible public health implications— the unrelenting, often scientifically-inaccurate media coverage did little to quell the fear and anxiety of many Americans.  Once again, the media—rather than physicians, public health officials and influenza experts—“got out in front of the story” and managed to create enough panic, fear and anxiety, the likes of which haven't been seen since the 2003 SARS pandemic. It wasn't until last Friday, when the Wall Street Journal published an interview with Dr. Peter Palese—a leading scientific expert on influenza A infections— did a clearer picture emerge about the severity and public health implications of the current swine flu pandemic.

According to Dr. Palese, there are several reasons why people and public health officials ought to be optimistic about the current pandemic:

  • In 1976 there was a an outbreak of an H1N1 swine virus in Fort Dix, New Jersey, which showed human to human transmission but did not go on to become a highly virulent pandemic strain
  • The presently circulating swine virus is most likely not more virulent than the other seasonal strains we have experienced over the last several years
  • The current swine virus lacks an important molecular signature (the protein PB1-F2) which was present in the 1918 virus and in the highly lethal H5N1 chicken viruses.  If this virulence marker is necessary for an influenza virus to become highly pathogenic in humans or in chickens, then the current swine virus doesn’t have what it takes to become a major killer
  • Since people have been exposed to H1N1 viruses over many decades, we likely have some cross-reactive immunity against the swine H1N1 virus. While it may not be sufficient to prevent becoming ill, it may very well dampen the impact of the virus on mortality.  I would postulate that by virtue of this “herd immunity” even a 1918-like H1N1 virus could never have the horrific effect it had in the past.  The most likely outcome is that the current swine virus will become another (fourth) strain of regular seasonal influenza

The landscape of vaccines and anti-influenza drugs has dramatically improved over what it was just a few years ago. Based on what we know of the structure and sequence of the swine virus, these FDA-approved drugs and FDA-licensed vaccines (modified to include the swine strain) would be highly effective against this new virus.  Also, present technologies as well as manufacturing capacities will allow us to make sufficient quantities of a swine virus vaccine for the winter 2009-10 influenza season in the US.

In other words, there is reason for concern but no need to panic beyond typical public health precautions that are taken during “normal” influenza outbreaks.

Dr. Vincent Racaniello, a viral disease expert who writes the Virology Blog, reported that as of Monday there have been laboratory confirmed cases of H1N1 infections in 30 US states with a total of 226 cases and one death in Texas. Globally, 20 countries had reported 985 cases of infection. The highest numbers are in Mexico, with 590 cases and 25 deaths. While there have been 26 deaths to date, the severity of the infection appears to be waning and person-to-person transmission appears to be low.

Unfortunately, there has been some fallout from the news media’s oft times “over the top” coverage of the pandemic. Many US hospital emergency rooms (most notably in Texas and California) have been overwhelmed and overburdened by visits from people who think they may have swine flu. Also, while some schools and daycare center closures were warranted, others may not have been. Finally, and perhaps most important, it is becoming increasingly apparent that the lay public's understanding of infectious agents and the outbreaks that they cause is grossly deficient and must be improved. 

We live in a world where viral pandemics, food poisoning outbreaks and infections caused by multiple-antibiotic resistant bacteria are becoming commonplace. While vaccines, antivirals and antibiotics can afford some protection against many viral and bacterial disease, the best way to fight infectious diseases is to understand what causes them, how they are spread and what public health measures can be implemented to prevent or control their transmission. Until the world becomes better educated about infectious diseases, we will continue to be overly-dependent on the news media during future outbreaks and epidemics.

Until next time....

Good Luck and Good Job Hunting!!!!!!!!!

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This Week In Virology (TWiV) Rocks!!!!!!

Vincent Racaniello, Professor of Microbiology at the College of Physicians and Surgeons at Columbia University and co-founder of BioCrowd ,has created a weekly series called This Week In Virology (TWiV). Each week Professors  Racaniello and Dickson Despommier (another Columbia virologist) discuss the latest developments and public health concerns for a variety of viral diseases.

The weekly discussions are packaged as podcasts, posted on TWiV and Science Podcasters.org and can be downloaded from iTunes. Dr. Racaniello eventually wants to offer TWiV in a vcast format and use it to inform the public and teach students about viral diseases.

So far, Vincent and Dick have created nine TWIV podcasts. Some of viruses that they have discussed include: HIV, Polio, Lassa fever, Rabies, West Nile Virus and even video game viruses. The podcasts are interesting, informative and a good way to learn something about virology—something that may liven up your daily commute!

Until next time,

Good Luck and Good Job Hunting

 

New Technology: Using Google to Track the Flu

No matter what you may think of Google, you gotta love the brilliance and innovative moxy of the guys who run that company. In today’s New York Times, there was a story about a new web tool called Google Flu Trends. This tool is being evaluated as a new early warning system for fast-spreading flu outbreaks in the US.

Tests of Google Flu Trends, suggest that it may be able to detect regional outbreaks of the flu a week to 10 days before they are reported by the Centers for Disease Control and Prevention (CDC). It works by tracking and quantifying number of Americans who enter search phrases like “flu symptoms” into Google and other search engines. By analyzing these searches as they come in, Google Flu Trends creates graphs and maps of the country that show where the flu is spreading.  For example, in early February the CDC reported that the flu cases had recently spiked in the Mid-Atlantic States. But Google says its search data showed a spike in queries about flu symptoms two weeks before the CDC report was released.

According to public health experts “The CDC reports are slower because they rely on data collected and compiled from thousands of health care providers, labs and other sources. The Google data could help accelerate the response of doctors, hospitals and public health officials to a nasty flu season, reducing the spread of the disease and, potentially, saving lives.” Researchers have long contended that information published on the Web amounts to a form of “collective intelligence” that can be used to spot trends and make predictions.

Google Flu Trends appears to be the first public project that uses the powerful database of a search engine to track a disease. This could be the beginning of a new trend in epidemiology. Google hopes to publish the results of its study in Nature.

Until next time…

Good Luck and Good Job Hunting!!!!!!!!