For more than four decades, Ebola virus had only been diagnosed in central or eastern Africa.
Then late this past March, the first cases of Ebola began appearing in a surprising part of the continent. The Ministry of Health in Guinea notified WHO of a rapidly evolving outbreak of Ebola virus disease. The outbreak in Guinea was the first sign the virus had made the jump across the continent.
Ebola then spread quickly to Sierra Leone and Liberia, and then to Nigeria.
As the world learned of the cases, CDC began receiving questions from American hospital labs. They were looking for guidance on how to handle testing for patients who had recently returned to the U.S. from West Africa with potential Ebola symptoms.
If U.S. hospitals were to run laboratory tests on these patients, how could they be sure their staff could safely handle materials that might contain this dangerous virus? Did they need the kind of personal protective equipment they saw CDC scientists using when they were testing for Ebola?
Continue reading “CDC Laboratory Guidance on Ebola”
Filed Under: THCB
Tagged: BSL4 Labs, CDC, Cuidance, DOD, Ebola, OSHA, RT-PCR
Aug 20, 2014
Two Americans who became infected with Ebola virus disease in Liberia are now at Emory University Hospital in Atlanta. They’re receiving supportive care, including careful fluid management, as their bodies wrestle with the Ebola virus. While there is no cure for Ebola, strong supportive care will increase their chances of survival.
Their arrival was carefully planned and prepared for. And their care is being closely monitored as they are being managed in strict isolation. We are confident everything is being done for their well-being, and for the safety and well-being of those treating them.
How did these and other health care workers come down with Ebola virus disease?
We may never know the precise source of their exposure.
Regardless, the occurrence of Ebola virus infection in health care workers is a sobering reminder that the preparedness of health care personnel is often a significant factor in Ebola outbreaks. Isolation and strict infection control procedures are essential to prevent spread of the disease.
There has been a lot of fear about Ebola. The health care workers who care for Ebola patients are right to be concerned – and they should use that concern to increase their awareness and motivation to practice meticulous infection control measures.
Ebola virus is transmitted through direct contact with bodily fluids of an infected person who is sick with Ebola, or exposure to objects, such as needles, that have been contaminated with infected secretions.
Travel from Affected Region
There is a risk for Ebola to be introduced to the United States via an infected traveler from Africa. If that were to happen, widespread transmission in the United States is highly unlikely due to our systematic use of strict and standard infection control precautions in health care settings, although a cluster of cases is possible if patients are not quickly isolated. Community spread is unlikely due to differences in cultural practices, such as in West Africa where community and family members handle their dead.
CDC has advised all travelers arriving from Guinea, Liberia, Nigeria, and Sierra Leone to monitor their health for 21 days and watch for fever or other symptoms consistent with Ebola. If they develop symptoms, they should call ahead to their hospital or health care provider and report their symptoms and recent travel to the affected areas so appropriate precautions can be taken.
Continue reading “The Ebola Outbreak: The CDC Director’s Guidance for Health care workers”
Filed Under: Physicians, THCB
Tagged: CDC, Ebola, Guinea, Infection control, Liberia, Nigeria, Sierra Leone
Aug 8, 2014
Users and non-users of electronic cigarettes (e-cigarettes) have many legitimate questions about these nicotine-delivery devices. E-cigarettes represent a nearly $2-billion-a-year industry, and one that’s growing exponentially. The number of young people trying e-cigarettes doubled from 2011 to 2012, according to the Centers for Disease Control. So it is natural that so many people are interested in the health consequences of using e-cigarettes.
Research from the Department of Health Behavior at Roswell Park Cancer Institute has documented the impact of first-, second- and third-hand exposure to e-cigarette vapors. Our most recent research, done in collaboration with scientists from the Medical University of Silesia in Poland, offers insight into the user’s exposure to carcinogenic carbonyls.
The e-liquids used in e-cigarettes are primarily composed of glycerin and propylene glycol. We set out to find out what chemicals are generated during use of e-cigarettes, particularly at variable voltages. Some devices allow the user to adjust the voltage to increase vapor production and nicotine delivery.
We found that when e-cigarettes were operated at lower voltages, the vapors that were generated contained only traces of some toxic chemicals. These chemicals included the carbonyls formaldehyde, acetaldehyde, and acetone. However, when the voltage was increased, the levels of these toxicants also significantly increased.
The novel finding of our study is that the higher the voltage, the higher the levels of carbonyls. Increasing battery output voltage leads to higher temperature of the heating element inside the e-cigarette. Increasing the voltage from 3.2 to 4.8 volts resulted in increases of anywhere from 4 times to more than 200 times the exposure to formaldehyde, acetaldehyde and acetone. The levels of formaldehyde in vapors from high-voltage devices were similar to those found in tobacco smoke.
Continue reading “Electronic Cigarettes: What’s in the Vapors?”
Filed Under: Uncategorized
Tagged: acetadehyde, acetone, Battery Output voltage, CDC, E-cigarettes, E-liquids, formaldehyde, Roswell Park Cancer Institute, voltage
Jun 30, 2014
In July, CDC will roll out a new way every hospital in the country can track and control drug resistant bacteria.CDC already operates the National Healthcare Safety Network (NHSN), with more than 12,000 health care facilities participating. Now we are implementing a breakthrough program that will take control of drug resistance to the next level – the Antibiotic Use and Resistance (AUR) reporting module. The module is fully automated, capturing antibiotic prescriptions and drug susceptibility test results electronically.
With this module, we’ll be able to create the first antibiotic prescribing index. This index will help benchmark antibiotic use across health care facilities for the first time, allowing facilities to compare their data with similar facilities. It will help facilities and local and state health departments as well as CDC to identify hot spots within a city or a region.
We’ll be able to answer the questions: Which facilities are prescribing more antibiotics? How many types of resistant bacteria and fungi are they seeing? Do prescribing practices predict the number of resistant infections and outbreaks a facility will face? Ultimately with this information, we’ll be able to both improve prescribing practices and identify and stop outbreaks in a way we have never done before.
This will help deploy supportive and evidence-based interventions at each facility as well as at regional levels to help stop spread among various facilities.
The need for a comprehensive system to collect local, regional, and national data on antibiotic resistance is more critical than ever. The system now exists, and we need quick and widespread uptake.
Rapid and full implementation of this system is supported through the proposed increase of $14 million contained in CDC’s 2015 budget request to Congress.
With the requested funding increase in future years, CDC would look to develop web-based tools and provider apps so physicians will gain access to facility- and community-specific data via NHSN on the most effective empiric antibiotic for the patient in front of them. For example, a physician in a burn unit treating a patient with a possible staph infection will know what antibiotics that particular microbe is likely susceptible TO and which ones are likely to be most effective.
Instead of broad-spectrum antibiotics being the default choice, as is often the case now, doctors will see recommendations for targeted narrow-spectrum antibiotics that are more likely to be effective and less likely to lead to potentially deadly infections such as C. difficile.
Continue reading “Where Are The Hot Spots For Antibiotic Resistance?”
Filed Under: OP-ED, Tech, THCB
Tagged: Antibiotic resistance, Antibiotic Use and Resistance Module, antibiotics, CDC, National Healthcare Safety Network
Jun 24, 2014
Lately, stories about outbreaks seem to be spreading faster than the diseases themselves. An outbreak of measles in Ohio is just part of an 18-year high of U.S. cases. Meanwhile, polio continues to circulate in Pakistan, Afghanistan, and Nigeria, while spreading to other countries, like Cameroon, Equatorial Guinea, and Syria, leading the World Health Organization to declare a “Public Health Emergency of International Concern” last month.
The Role of Globalization
As recent threats of H5N1, H1N1, and MERS attest, the increasingly global nature of infectious diseases presents serious risks. Foreign tourists, Americans returning home from international travel, immigrants, and refugees can all expose countries to disease.
With modern transportation shuttling people and products to nearly any part of the world in a matter of hours, the volume of these comings and goings is unprecedented. In 2008, approximately 360 million travelers entered the United States, which also takes in about 50,000 refugees annually.
It should be unsurprising, then, that the Ohio measles outbreak started when unvaccinated Amish missionaries visited the Philippines, then returned home. Infected persons spread the disease to others within their largely unvaccinated communities. The last naturally occurring U.S. outbreak of polio occurred in similar fashion: An outbreak in the Netherlands spread to Canada in 1978, then to the United States the following year, all among unvaccinated Amish populations across four states.
Compared to the United States, nations experiencing social unrest and political conflict face even more serious obstacles to preventing infectious disease.
Strife can interrupt routine vaccination campaigns, as is largely happening with polio. For example, the largest numbers of polio cases last year were in Somalia and Pakistan. Refugees and other displaced populations without health care access can create fertile settings for disease spread, especially if they’re not protected by vaccination. Health workers involved in vaccination campaigns can become targets of violence. And in some areas—Nigeria, for example—religious leaders haveconvinced their followers that the polio vaccine is a biological weaponpromulgated by the West.
For the most part, the United States doesn’t face these barriers. In America, vaccination is more of a choice. Unfortunately, some Americans are putting themselves, their families, and their communities at risk by choosing not to get vaccinated. If those who opt out of vaccination travel to areas where diseases are more common or come in contact with individuals arriving from such areas, they’ll be at risk of becoming ill from otherwise preventable diseases. Continue reading “An Outbreak of Outbreaks”
Filed Under: Uncategorized
Tagged: Anti-vaxxers, CDC, H5N1, Measles, MERS, Outbreak, Polio, public health, risk
Jun 11, 2014
Antibiotic resistance — bacteria outsmarting the drugs designed to kill them — is already here, threatening to return us to the time when simple infections were often fatal. How long before we have no effective antibiotics left?
It’s painfully easy for me to imagine life in a post-antibiotic era. I trained as an internist and infectious disease physician before there was effective treatment for HIV, and I later cared for patients with tuberculosis resistant to virtually all antibiotics.
We improvised, hoped, and, all too often, were only able to help patients die more comfortably.
To quote Dr. Margaret Chan, Director General of the World Health Organization: “A post-antibiotic era means, in effect, an end to modern medicine as we know it.”
We’d have to rethink our approach to many advances in medical treatment such as joint replacements, organ transplants and cancer therapy, as well as improvements in treating chronic diseases such as diabetes, asthma, rheumatoid arthritis and other immunological disorders.
Treatments for these can increase the risk of infections, and we may no longer be able to assume that we will have effective antibiotics for these infections.
Last September, CDC published our first report on the current antibiotic resistance threat to the United States.
The report conservatively estimates that each year, at least 2 million Americans become infected with bacteria resistant to antibiotics, and at least 23,000 die. Another 14,000 Americans die each year with the complications of C. difficile, a bacterial infection most often made possible by use of antibiotics. WHO has just issued their report on the global impact of this health threat.
It’s a big problem, and one that’s getting worse. But it’s not too late. We can delay, and even in some cases reverse the spread of antibiotic resistance.
Continue reading “The End of Antibiotics. Can We Come Back from the Brink?”
Filed Under: OP-ED, THCB
Tagged: Antibiotic resistance, C. difficile, CDC, CRE, federal budget, FutureMed, MRSA, National Healthcare Safety Network (NHSN), post-antibiotic era, public health, Tom Frieden
May 5, 2014
This week, the U.S. Centers for Disease Control and Prevention issued two reports that are simultaneously scary and encouraging.
First, the scary news: A national survey conducted in 2011 found that one in every 25 U.S. hospital patients experienced a healthcare-associated infection. That’s 648,000 patients with a combined 722,000 infections.
About 75,000 of those patients died during their hospitalizations, although it’s unknown how many of those deaths resulted from the infections, the CDC researchers reported in the New England Journal of Medicine.
On the bright side, those numbers are less than half the number of hospital-acquired infections that a national survey estimated in 2007. And a second report issued this week found significant decreases in several infection types that have seen the most focused prevention efforts on a national scale.
Noteworthy was a 44 percent decrease in central line-associated bloodstream infections (CLABSI) between 2008 and 2012, as well as a 20 percent reduction in infections related to 10 surgical procedures over the same time period.
These infections were once thought to be inevitable, resulting from patients who were too old, too sick or just plain unlucky. We now know that we can put a significant dent in these events, and even achieve zero infections among the most vulnerable patients.
At Johns Hopkins, we created a program that combated CLABSI in intensive care units through a multi-pronged approach—implementing a simple checklist of evidence-based measures while changing culture and caregivers’ attitudes through an approach called the Comprehensive Unit-based Safety Program (CUSP). The success was replicated on a larger scale across 103 Michigan ICUs and then later across most U.S. states, withimpressive results.
These and similar successes have changed caregivers’ beliefs about what is possible, and inspired more efforts to reach zero infections.
What will it take to attain this goal—or at least get much closer?
Continue reading “Hospital Acquired Infections: How Do We Reach Zero?”
Filed Under: Uncategorized
Tagged: CDC, hospital-acquired infections, Peter Pronovost
Mar 30, 2014
There are many stories of patients who suffer when we make errors prescribing antibiotics. 75-year-old Bob Totsch from Coshocton, Ohio, went in for heart bypass surgery with every expectation of a good outcome.
Instead, he developed a surgical site infection caused by MRSA. Given a variety of antibiotics, he developed the deadly diarrheal infection C. difficile, went into septic shock, and died.
A tragic story and, probably, a preventable death.
Today, we’ve published a report about the need to improve antibiotic prescribing in hospitals. Antibiotic resistance is one of the most urgent health threats facing us today. Antibiotics can save lives.
But when they’re not prescribed correctly, they put patients at risk for preventable allergic reactions, resistant infections, and deadly diarrhea. And they become less likely to work in the future.
About half of hospital patients receive an antibiotic during the course of their stay. But doctors in some hospitals prescribe three times more antibiotics than doctors in other hospitals, even though patients were receiving care in similar areas of each hospital.
Among 26 medical-surgical wards, there were 3-fold differences in prescribing rates of all antibiotics, including antibiotics that place patients at high risk for developing Clostridium difficile infections (CDI).
CDC has estimated that there are about 250,000 CDIs in hospitalized patients each year resulting in 14,000 deaths.
Continue reading “CDC: Together We Can Provide Safer Patient Care”
Filed Under: OP-ED, THCB, The Vault
Tagged: Antibiotic resistance, CDC, Clostridium difficile infections (CDI), Hospitals, MRSA, Patient Safety, Tom Frieden
Mar 4, 2014
Between October 1 and 17, the federal government ceased all nonessential operations because of a partisan stalemate over Obamacare. Although it is premature to declare this the greatest example of misgovernance in modern U.S. Congressional history, this impasse ranks highly.
One casualty of the showdown was any consideration of changes to lessen the impact of the across-the-board sequestration cuts that began on March 1. The cuts have caused economic and other distress across the nation, including serious impacts within the health care sector. Nearly eight months into sequestration, we can move beyond predictions and begin to quantify these effects.
Consider the following impacts of sequestration on Federal health agencies and activities:
NATIONAL INSTITUTES OF HEALTH
Cuts to the FY13 budget: $1.71 billion or 5.5%
A 5.8% cut to the National Cancer Institute, including 6% to ongoing grants, 6.5% to cancer centers, and 8.5% to existing contracts
A 5.0% cut to National Institute of General Medical Sciences, and a 21.6% drop in new grant awards
Among the effects:
- 703 fewer new and competing research projects
- 1,357 fewer research grants in total
- 750 or 7% fewer patients admitted to NIH Clinical Center
- $3 billion in lost economic activity and 20,500 lost jobs
- Estimated lost medical and scientific funding in California, Massachusetts, and New York alone of $180, $128, and $104 million respectively.
Dr. Randy Schekman, whose first major grant was from the National Institutes of Health in 1978, said winning this year’s Nobel Prize for Medicine made him reflect on how his original proposal might have fared in today’s depressed funding climate. “It would have been much, much more difficult to get support,” he said. Congresswoman Zoe Lofgren (D-Calif.) noted the irony that because of sequester cuts, NIH funding was reduced for the research that resulted in Yale’s James Rothman sharing in the 2013 Nobel Prize for Medicine.
Continue reading “The Sequestration Cuts That Are Harming Health Care”
Filed Under: OP-ED
Tagged: CDC, FDA, federal budget deficit, government shutdown, John E. McDonough, Medicare, NIH, public health, sequestration
Oct 24, 2013
As Washington remains deadlocked on the implementation of the Affordable Care Act, the US government’s shutdown has resulted in the furlough of nearly 70% of the Centers for Disease Control‘s (CDC’s) workforce. CDC Director Tom Frieden recently shared his thoughts in a tweet. We agree whole-heartedly. Although it’s all too easy to take the CDC staff for granted, they are the frontline sentinels (and the gold standard) for monitoring disease outbreaks. Their ramp-down could have serious public health consequences.
We are particularly concerned about the apparent temporary discontinuation of the CDC’s flu surveillance program, which normally provides weekly reports on flu activity. Although flu season typically begins in late fall, outbreaks have occurred earlier in previous years. In 2009, flu cases started accumulating in late summer/early fall. And given the potential for unique variants, such as the swine or avian flu, every season is unpredictable, making the need for regular CDC flu reports essential. We therefore hope to see the CDC restored to full capacity as soon as possible.
In the meantime, we would like to help by sharing data we have on communicable diseases, starting with the flu.
Because the athenahealth database is built on a single-instance, cloud-based architecture, we have the ability to report data in real time. As we have described in earlier posts, the physicians we serve are dispersed around the country with good statistical representation across practice types and sizes.
To get a read on influenza vaccination rates so far this season, we looked at more than two million patients who visited a primary care provider between August 1 and September 28, 2013 (Figure 1). We did not include data on vaccinations provided at retail clinics, schools or workplaces.
This year’s rates are trending in parallel to rates over the last four years, and slightly below those of the 2012-2013 season. However, immunizations accelerate when the CDC, and consequently the media, announce disease outbreaks and mount public awareness campaigns.
Continue reading “With CDC Seasonal Flu Data Unavailable, An Electronic Medical Record Offers a Glimpse of Early Activity Levels”
Filed Under: Tech, THCB
Tagged: athenahealth, CDC, Data, flu, Iyue Sung, public health
Oct 4, 2013