Entries in influenza and infectious diseases (378)
As Angelina would say:
The Tallahassee Democrat is reporting that two cases of chikungunya virus have been detected in my town. Both cases are "imported"; that is, the victims contracted the virus abroad and then returned to Tallahassee.
In one case -- communicated to me by one of my spies -- a faculty member of The Florida State University's geology department contracted chikungunya virus while in Haiti doing some field work.
As of June 14th, there were 42 confirmed cases of chikyngunya in Florida. All, apparently, imported.
As I type this, the top Alabama health official is holding a press conference. And a major tip 'o the cap to my buddy Mike Coston for giving me the link!
The health officer says there are three different agents at work in the cluster: Rhinovirus (4), influenza (I missed the number), and (3) bacterial pneumonia infections. There were multiple and overlapping infections in several of these cases.
The hubub, this official states, is due to the heightened states of alert pertaining to H7N9 and MERS-CoV.
"A clustering of common organisms" is the reason why this group of disassociated illnesses was grouped together.
One death was aged 34; the other was age 55.
According to this man, "WNL" means "Within Normal Limits," referring to tests. He says it also means "We never looked," referring to the individual persons who fell ill. It was the number of persons falling so ill, in such a short timeframe and in such a small area, and in such an environment as we are working in today with H7N9 and MERS, that prompted the closer inspection.
I like his candor and his folksy demeanor. Case closed.
However, the question is still out there on Houston.
The cases all come from nowhere. They involve bright, energetic, athletic students. They begin feeling feverish, exhausted, shaken. Then they experience violent seizures, are sent into a medically-induced coma. And then, for two of the three afflicted students, they die.
Now, in Dothan, Alabama, we are seeing a hauntingly familiar situation unfold. With the exception of the seizures, the symptoms are strikingly similar.
A television station much closer to the outbreak -- NBC affiliate WPMI, Mobile/Pensacola, is reporting that:
Doctors investigating the illness have not yet found a common denominator in the patients, whose ages range between the 20’s and 80’s, other than their symptoms. Doctors tested samples from the 7 patients at the state health lab to determine if there is from them to find “strain matching fingerprint” she added.
Doctors are analyzing those tests with investigators from the Centers for Disease Control & Prevention’s Atlanta office. State health officials, The Alabama Department of Public Health and the Centers for Disease Control Respiratory Laboratory are analyzing lab tests from all seven patients. Officials hope to have preliminary results on the samples back by Wednesday or Thursday morning.
Okee dokee, it is late Thursday morning. What do we know?
OK, THIS is unsettling. Prior to this week, I only knew Dothan as the city where my parents were married, and where my wife, stepson and I would stop on the way to Tuscaloosa during his recruitment by the Crimson Tide. Dothan is about a two-hour drive from Tallahassee, in southeastern Alabama. It is a large town, and a crossroads for persons traveling from Interstate 10 to Interstates 65 or I-85.
But now, Dothan is known as the epicenter of an outbreak of a still-unknown respiratory outbreak. And forgive me if it is a bit worrisome to me on several levels.
First, the situation on the ground here in Tallahassee: I am on Month 5 of some sort of mystery ailment. It is, apparently, some sort of allergy, brought on by (I theorize) an Alien Spore Cloud of some magnitude. I say this because, roughly, 2000% of Tallahasseans are suffering as well.
A couple of weeks ago, I traveled with my beautiful wife to a conference she was working in Cocoa Beach. I was able to get some quality body-surfing time, although my "rescue" at the hands of misguided marine biologists who misinterpreted my body surfing as the throes of a beached whale was not appreciated. Just kidding on that one. I said to myself, "Self, this salt air and seawater should wipe out whatever it is in my sinuses that is causing me Hell."
WRONG! later that day, I restarted my routine of sneezing and dealing with a runny nose.
It seems that every other Tallahassean, including my wife, is suffering the same fate. So you can see where a respiratory incident could easily be misinterpreted -- until people stop breathing, that is.
Back to the Dothan cluster. From the Alabama Department of Public Health, dated 5/21/13:
On 5/16/13, a pulmonologist in Southeast Alabama reported to the Alabama Department of Public Health (ADPH) that three patients had been hospitalized with cough, shortness of breath, and pneumonia, were on ventilators, and had no known cause for their illness. The ADPH and the Houston County Health Department began an epidemiology investigation to interview the families about travel and exposure. Specimens were requested and submitted to the ADPH Bureau of Clinical Laboratories (BCL) in Montgomery.
On 5/17/13, BCL reported one of the three patients tested positive for 2009 H1N1. On 5/18/13, this patient died. On 5/19/13, the same hospital reported that a transferred patient on a ventilator with respiratory symptoms had died. On 5/19/13, this hospital had nine additional patients present to the emergency department with influenza-like illness and three of those patients were admitted. Specimens have been collected on all patients. The BCL has tested all specimens on a PCR flu panel and one tested positive for AH3. The specimens were also forwarded to CDC for additional testing.
The story gets more interesting, as three additional residents have been diagnosed with -- whatever. From Montgomery, Alabama television station WSFA 12:
HOUSTON CO., AL (WSFA) -
The number of mystery illness cases affecting Alabama is growing. Wednesday, Alabama Department of Public Health spokeswoman Dr. Mary McIntyre confirmed the number rose to ten overnight from a previous report of seven. Two people have died.
"Since we sent out the alert to providers last night, we have had three additional patients/cases," Dr. McIntyre told WSFA 12 News. "These patients all have the same symptoms of cough, shortness of breath and "something" on their chest x-rays," she explained.
Of interest is the fact two of the afflicted -- including one of the deaths -- tested positive for influenza. One of the deceased tested positive for H1N1, and another patient tested positive for A/H3. Whether this was seasonal H3N2 or swine H3N2 is not known. My hunch is it is the more virulent form of H3N2 that we saw at the tail end of this flu season. That caused such a spike in elderly deaths that it prompted the CDC to do a pretty exhaustive analysis -- the spike in deaths was that great.
This incident might not have generated the corresponding amount of publicity, were it not for the vigilance in the face of H7N9. H7N9, by the way, seems to have taken a vacation.
Of the original seven cases, three remain hospitalized. Two were discharged, and two met their Maker.
ABC News theorizes that these cases may not be a cluster of anything except overreaction. However, we know that three people are still on ventilators and the community is on pins and needles.
NBC News reports that Alabama health officials are not taking any undue chances. While I doubt the medical facilities have any negative air-pressure rooms (we are talking rural Alabama here), they are taking all the precautions they can:
The hospital is using respiratory precautions, which include requiring staff to wear special N95 masks that reduce the chance of infection.
With H7N9, MERS-CoV and God knows what else out there, no one is taking any chances. The CDC is a three-and-a-half-hour road trip away; close enough to spend quality time in Dothan.
First, let's catch up on the news of the day. The first case of H7N9 off the Chinese mainland has been confirmed by Taiwanese officials. In today's Hell Freezes over installment, the Taiwanese and Chinese are working together to track and attempt to contain this new bird flu. The blog, from Crof, can be found here.
Cooperation between usual foes regarding bird flu is certainly not new: The Israelis and the Palestinian Authority have regular conference calls on spotting and eradicating H5N1. Good to see these two nations talking. Maybe there's hope for the Koreas. Nope, I just jinxed it.
Next comes the actual detail on the Taiwan case, courtesy of Mike Coston's blog. Seems the individual A) just returned from Jiangsu province earlier in April, and B) presented symptoms shortly afterward. he was hospitalized on April 16th. After two straight negative tests for H7N9, he finally tested positive.
"If at first you don't succeed, stop" seems to be the norm for avian influenza testing. In this case, the Taiwanese tested again (good for them), and successfully achieved a positive test. From the Taiwan CDC report:
Just kidding. From the Taiwan CDC report, which I have reformatted for emphasis on the dateline:
During March 28 and April 9, 2013, the patient traveled to Suzhou.
On April 9, he returned to Taiwan from Shanghai. According to the case, he had not been exposed to birds and poultry during his stay in Suzhou and had not consumed undercooked poultry or eggs.
On April 12, he developed fever, sweating, and fatigue, but no respiratory or gastrointestinal symptoms.
On April 16, he sought medical attention at a clinic when he developed high fever and was transferred to a hospital by the physician. He was then hospitalized in a single-patient room for further treatment.
On April 16, he was administered Tamiflu.
On April 18, his chest x-ray showed interstitial infiltrate in the right lower lung. On the night of April 19, his conditions worsened.
On April 20, he was transferred to a medical center for further treatment. He was then intubated due to respiratory failure and placed in the negative-pressure isolation room in the intensive care unit. During his stay in the hospitals, two throat swab specimens were collected and both tested negative for avian influenza A (H7N9) virus by real-time RT-PCR.
On April 22, the medical center collected a sputum specimen from the patient and the specimen was tested positive for influenza A.
In the morning of April 24, avian influenza A (H7N9) virus was detected in the sputum specimen using real-time RT-PCR.
In the later afternoon of April 24, the National Influenza Center in Taiwan confirmed the identification and completed the genome sequencing of the virus.
OK, let's review. Independent analysis from several Australian experts is showing an average nine-day period between exposure and the presentation of severe symptoms. Based on this, I would speculate that he acquired the virus around April 6th or 7th. Check. It would be nice to know where he was on those days. The narrative also shows that, for a period of four days (!), he was in a normal, single-patient hospital room, his condition gradually worsening. On April 22nd (!), he was intubated and placed in a negative air-pressure room.
This tells me that the Taiwanese had no Earthly idea they had an H7N9 patient in their midst, even though he was being treated for flu, was geting worse, and had just come from a relative hotbed of H7N9.
What is very troubling, disconcerting, wringing-the-hands worrisome is that three attending health care workers are now feeling sick, and they have -- wait for it -- flu-like symptoms. Back to Crof for that report.
From the same Chinese CDC release:
Of the 110 healthcare workers (who attended the patient), 4 have passed the 7-day incubation period and shown no symptoms. Only three contacts failed to put on appropriate personal protective equipment when the contact occurred. Thus far, the three have not developed symptoms, but they will be followed up until April 27, 2013. On the other hand, while delivering healthcare services, three healthcare workers who were geared with appropriate personal protective equipment developed symptoms of upper respiratory infection. The public health authority have conducted thorough health education activities for all contacts, issued them with “Self-Health Management Advice for H7N9 Influenza”, and will be following up with them closely until the period of voluntary contact tracing is lifted. When a contact develops influenza-like illness symptoms such as fever and cough, the public health authority will voluntarily assist the individual in seeking medical attention.
I wonder how these apparently-sick healthcare workers sync with the "single room" timeline. It was two days prior -- on April 18th -- that the US CDC issued guidance, including the placement of suspected H7N9 to be put into negative air-pressure rooms, even absent a positive test result.
Where I am going is that, even in Taiwan, so close to mainland China they can almost feel it, it took three tests to confirm H7N9, and they kept a really sick guy in a general room for four days - two days beyond the US CDC guidelines were published on the Nets.
Now the other revelation concerning this Taiwanese man is his concurrent battle with Hepatitis B. I am the furthest thing from expert on Hepatitis, so I defer to Crof's blog of a few days ago, regarding co-infection. It seems many of the same people who have contracted H7N9 are also suffering/living with Hepatitis B.