A Troubling Trend: Genital Herpes Infections are on the Rise

While studying the pathogenesis of Neisseria gonorrhoeae in Portland, OR in the early 1980s, genital herpes had replace gonorrhea as the scourge of the sexually transmitted disease community. To help to combat the spread of genital herpes, my labmates and I joined the Portland Venereal Disease Action Committee, a grass roots organization that provided public outreach and education about sexually transmitted diseases (STDs). A few years later, the Regan Administration finally admitted to the American public that HIV/AIDS was real and that HIV infections were likely to reach epidemic proportions. While genital herpes can be painful, uncomfortable and often emotionally debilitating, the unprecedented morbidity and mortality of HIV/AIDS almost pushed genital herpes into infectious diseases obscurity. Now that HIV/AIDS is more treatable than ever before, epidemiologists and sexually transmitted diseases experts have begun to reexamine the infection rates and incidence of other STDs (including herpes, gonorrhea, Chlamydia and syphilis) among Americans. To that end, I read today a very troubling article about the infection rates and incidence of genital herpes among sexually active Americans. Here are some of the facts gleaned from a recent CDC report on genital herpes:

  1. One in six Americans aged 14 to 49 are infected with genital herpes, making the virus — herpes simplex 2 — one of the most common sexually transmitted diseases in the United States
  2. Research shows that people with genital herpes are two to three times as likely to acquire H.I.V. as those without herpes
  3. H.I.V.-infected individuals also infected with genital herpes are more likely to transmit H.I.V. to others
  4. Infection rates for women are almost twice the rate of men
  5. Blacks are three times as likely to be infected as whites
  6. Black women have the highest rates of infection, with almost half infected

Looking back, it is understandable why HIV/AIDS took precedent over genital herpes infections. After all, most people usually don’t die from genital herpes. However, the rising infection rates of the disease suggest that the American public needs to be better educated the spread and prevention of genital herpes infections. There is no question that discussions about STDs are embarrassing and often difficult. However, these days, they can be the difference between live and death!

Until next time…

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

 

MRSA in the News Again: Another Misleading Report

Last week, I took a group of Seattle researchers to task about issuing a press release about isolating methicillin resistant Staphylococcus aureus (MRSA) from sand samples taken from public beaches in Washington State. Their findings were neither remarkable nor news worthy and likely did more harm than good. Sadly, another article about MRSA—designed to alarm rather than inform and educate the American public—appeared in today’s Science section of the NY Times.

The article, “Ties to Pets Has Germ Jumping To and Fro” in which the word “germ” appeared several times, reports on the possible transmission of MRSA between humans and their pets, most notably dogs and cats. Much of the article focuses on the “strong link between animal to human transmission,” offers several frightening examples of serious zoonotic cases that have been recently reported and suggests that cats are eight times more likely than other pets to transmit MRSA to their owners. After reading the first part of the article, readers would rightfully believe that we are in the midst of a massive zoonotic MRSA epidemic with family pets at its epicenter.  However, on the second page of the article the author mentions an epidemiological survey study conducted by Dr. J. Scott Weese, a veterinarian from the University of Guelph in Ontario Canada which showed  that only “two to three percent of pets carry MRSA on their fur or skin or in their saliva.” Further, the study suggests that healthy animals that are transiently colonized by MRSA eliminate them “in a manner of weeks.” Compare the 2 to 3 per cent carrier rate in pets with an almost 70% human carriage rate of MRSA. While I am a PhD-trained infectious disease microbiologist, I don’t think it requires a PhD to quickly realize that pets really aren’t a major source or cause of MRSA infections for humans. That said, raising awareness among veterinarians about MRSA might aid in the development of appropriate disease surveillance, diagnostic testing, andinfection control to lessen the impact of MRSA on smallanimals.

I have no doubt that many people will look at and possibly treat their pets differently after reading the Times article. Further, many will unnecessarily spend money to have their pets tested for the presence or absence of MRSA. While informing the American public that pets (like humans) might unknowingly transmit MRSA is a good thing, turning the rare transmission of MRSA from animals to humans into a major epidemiological brou-ha-ha is misleading, scientifically disingenuous and reckless. Good journalism should inform and educate, not alarm and frighten people by presenting misleading and wrong-headed information. 

Until next time....

Good Luck and Good petting your pets (it will do more good than harm)

 SocialTwist Tell-a-Friend

Wondering Where the Next Swine Flu Outbreaks May Be? The iPhone Has An App For That!

As an iPhone user, I am constantly amazed at the applications that are developed for it. I recently downloaded a flashlight app that converts my iPhone into a flash light in case of a power outage or finding myself in the dark like I did two summers ago at Moosehead Lake in Maine. Just when I thought iphone apps couldn’t get cooler, I learned about a new app called “Outbreaks By Me.” It was developed by researchers at Children's Hospital Boston in collaboration with the MIT Media Lab, enables users to track and report outbreaks of infectious diseases, such as H1N1 (swine flu), on the ground in real time. The application can be downloaded from iTunes.

According to a press release “the application builds upon the mission and proven capability of HealthMap, an online resource that collects, filters, maps and disseminates information about emerging infectious diseases, and provides a new, contextualized view of a user's specific location – pinpointing outbreaks that have been reported in the vicinity of the user and offering the opportunity to search for additional outbreak information by location or disease.” An additional feature of Outbreaks Near Me is the ability to set alerts that will notify users via text or by e-mail when new outbreaks are reported in their proximity, or if users enter a new area of activity. It also offers an option for users to submit an outbreak report which will allow people in cities and countries around the world to interact with the HealthMap team and participate in the public health surveillance process.

What will iPhone app developers think of next— an app for swine flu vaccination?   Now that would be way cool!

Until next time....

Good Luck and Good Swine Flu Hunting!!!!!!!

 

Everything You Ever Wanted to Know About the Swine Flu and Then Some!!!

Since the beginning of the pandemic last spring, BioCrowd founder and virologist extraordinaire Vincent Racaniello has been vigilantly writing at his at his Virology Blog about HIN1 pathogenesis, epidemiology, immune responses and vaccines.  When not blogging about HIN1, Vincent also writes about other viral diseases and does a weekly virology podcast called This Week in Virology (TWIV).

In a very short time, Professor Racaniello has amassed a huge collection of original articles that could be compiled into a virology textbook with a title like “Everything you ever wanted to know about H1N1.” And, not surprisingly, his Herculean efforts have not gone unnoticed: today his Virology Blog was recognized and listed as a legitimate source of H1N1 information by the New York Times

For those of you who haven’t been overwhelmed by the unrelenting swine flu media frenzy and are seeking sound information about the H1N1 epidemic, I highly recommend that you check out Vincent’s blog. Also, you can talk with Vincent at BioCrowd when he is not too busy blogging, podcasting or conducting laboratory research.

Until next time...

Good Luck and Remember to Wash Your Hands !!!!!

 SocialTwist Tell-a-Friend

"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!!!!!

 SocialTwist Tell-a-Friend

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!!!!!!!!!

  SocialTwist Tell-a-Friend

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!!!!!!!!