Archive for the ‘Ticks’ Category

Fire – Good News for Tick Reduction

Fire & Ticks: The Impacts of Long-term Prescribed Fire on Tick Populations & Tick-borne Disease Risk

Approx. 1 hour

Published on Mar 29, 2018

This webinar by Dr. Liz Gleim, Assistant Professor of Biology & Environmental Studies from Hollins University explores the impacts of long-term prescribed fire on ticks & tick-borne disease risk and what appears to be some promising results linking fire & reducing disease risk.

Webinar found on the NAFSE website, www.firesciencenorthatlantic.org.

https://madisonarealymesupportgroup.com/wp-content/uploads/2018/04/4101b-gleim_tick26fire_webinar_final.pdf

(slide show in link)

The research conducted in southwest Georgia concerned four tick species (slide 2):

  • Lone Star Tick – known for causing Human Monocytic Ehrlichiosis (HME), Ehrlichiosis ewingii (STARI)
  • Gulf Coast Tick – known for causing Rickettsiosis
  • American Dog Tick – known for causing Rocky Mountain Spotted Fever (RMSF)
  • Black Legged Tick – known for causing Lyme Disease (LD), Human granulocytic anaplasmosis (HGA), and Babesiosis

Prior research (slide 5) have shown a discrepancy regarding whether or not controlled fire reduces tick abundance over time.  Gleim found that these prior studies did not take into account “real-world” management practices such as they were conducted in small areas and consisted of single-burns.

Gleim’s study consisted of 21 Total sites in 4 different categories (slide 7):

  1. 8 burned sites surrounded by burned areas
  2. 5 burned sites surrounded by unburned areas
  3. 5 unburned sites surrounded by unburned areas
  4. 3 control unburned sites surrounded by unburned areas

The study went for 2 years in which they did monthly tick surveys, took weather data, and did vegetative and host surveys (slide 8).  In the two years they collected over 47,000 ticks.

Tick abundance was in the following order (slide 10):

  1. Lone Star Tick
  2. Black Legged Tick
  3. Gulf Coast Tick
  4. American Dog Tick

Regarding fire on tick populations, they found the burned areas “flatlined” the tick populations whereas the control sites had typical tick abundance (slide 11) .  

Greater than 95% leaf litter = 2X more ticks (slide 12)

High tree density = 6X more ticks

Regarding black legged ticks:

Burning reduced the black legged tick population by 78%

High tree density = 17X more ticks

Recent precipitation = 2X more ticks

Gleim was concerned about the effects of red imported fire ants (RIFA) on the ticks (slide 14 & 15)

Ticks:  Evidence has shown that Imported fire ants reduce populations of certain tick species by preying on engorged female ticks filled with blood and eggs or small hatching ticks. Non-engorged ticks freeze in place and “play possum” when examined by a foraging ant, thus escaping their fate as ant food!   http://articles.extension.org/pages/60922/what-do-fire-ants-eat

There is limited data only the effects of RIFA on Lone Star Ticks.

So they did 3 treatments (slide 16) putting engorged Lone Star & Gulf Coast Ticks as well as nymphs into each enclosure and releasing them them during months that they were determined to be naturally active (slide 17):

  1. Burned habitat with Fire Ants
  2. Burned habitat without Fire Ants (this doesn’t happen naturally)
  3. Unburned habitat without Fire Ants (this doesn’t happen naturally)

They found (slide 18) no significant effect of RIFA on either tick species and that Gulf Coast Ticks did better than the Lone Star Ticks in the burned habitat with higher temperatures and the Lone Star Ticks did better in the unburned habitat.  The ticks did not have to survive burning; however, they had to survive the habitat after the vegetation was alive and well.

They found (slide 19) that burning gave an open canopy with sunlight being able to reach through to the forest floor causing higher temps and lower humidity.  The unburned sites conversely had closed canopy with a leaf litter understory causing lower temps and higher humidity which is more conducive for tick populations.

In essence – fire causes a forest structure that is less conducive to tick populations and lowers ticks and pathogen prevalence (slide 20).

The bottom line is they found (slide 21):

No Borrelia burgdorferi in the black legged ticks they collected.

  • .02 infected ticks per hour in all burned sites
  • .70 infected ticks per hour in unburned sites

Burning gave a 98% reduction in ticks.

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**Comment**

Well, now we know. Burning SIGNIFICANTLY REDUCES TICKS.  Let there be no question.

I’m very thankful for this work as it lays to rest the idea that burning isn’t worth it.  I would say that a 78-98% reduction in ticks to be worth it!

http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0112174   These data indicate that regular prescribed burning is an effective tool for reducing tick populations and ultimately may reduce risk of tick-borne disease.

Those of you in states where funding is increasing for tick reduction, copy this off and get it to your representatives.  Burning is not toxic like pesticides often used to reduce ticks.  It also works.  I have to think it’s economical compared to many other options as well.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

First Detection in Italy of Borrelia Miyamotoi in Ixodes Ricinus Ticks

https://www.ncbi.nlm.nih.gov/m/pubmed/29554975/

First detection of Borrelia miyamotoi in Ixodes ricinus ticks from northern Italy.

Ravagnan S, et al. Parasit Vectors. 2018.

Abstract

BACKGROUND: Borrelia miyamotoi is a spirochete transmitted by several ixodid tick species. It causes a relapsing fever in humans and is currently considered as an emerging pathogen. In Europe, B. miyamotoi seems to occur at low prevalence in Ixodes ricinus ticks but has a wide distribution. Here we report the first detection of B. miyamotoi in Ixodes ricinus ticks collected in two independent studies conducted in 2016 in the north-eastern and north-western Alps, Italy.

RESULTS: Three out of 405 nymphs (0.74%) tested positive for Borrelia miyamotoi. In particular, B. miyamotoi was found in 2/365 nymphs in the western and in 1/40 nymphs in the eastern alpine area. These are the first findings of B. miyamotoi in Italy.

CONCLUSIONS: Exposure to B. miyamotoi and risk of human infection may occur through tick bites in northern Italy. Relapsing fever caused by Borrelia miyamotoi has not yet been reported in Italy, but misdiagnoses with tick-borne encephalitis, human granulocytic anaplasmosis or other relapsing fever can occur. Our findings suggest that B. miyamotoi should be considered in the differential diagnosis of febrile patients originating from Lyme borreliosis endemic regions. The distribution of this pathogen and its relevance to public health need further investigation.

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**Comment**

That last sentence is the understatement of the year.  Unfortunately, Science is in the Dark Ages regarding all things Lyme/MSIDS with experts clinging to ancient, dusty, and often unscientific research that desperately needs updating.

https://madisonarealymesupportgroup.com/2018/03/11/italy-5-year-tick-survey/  It appears our Italian friends now are on record for having Rickettsia species, Anaplasma, & Bartonella.

19554184_1928116994100157_3435542982596343683_n

My daughter in Rome, Italy

Please remember that up until 1994 B. miyamotoi wasn’t even on the radar except in Japan and there it was in Ixodes persulcatus ticks.  Human cases weren’t reported until 2011 in Russia and then the U.S., Europe, and Japan.  Think of all the patients who presented with severe illness but went undiagnosed.  This is still happening.  

https://www.ncbi.nlm.nih.gov/m/pubmed/25892254/?i=2&from=/28714333/related

B. miyamotoi species are usually transmitted by soft-bodied ticks or lice; however, it has been found in at least six Ixodes tick species in North America and Eurasia that transmit Lyme as well.  A great reminder that we need to be very careful about being closed-minded regarding what ticks carry what.  

Also important to note is the lack of belief of mainstream medicine on the severity, complexity, and length of illness these pathogens can cause.  While it’s true some who are treated quickly get better, others do not and suffer for years with debilitating illness:  https://madisonarealymesupportgroup.com/2018/02/02/hopkins-study-shows-severe-symptoms-in-some-after-lyme-treatment/  (Please read my comment after the study)

Mainstream medicine STILL does not take into account ALL of the pathogens involved.  They test and treat for ONE pathogen, whereas patients are often coinfected with numerous pathogens – including bacteria, viruses, funguses, parasites, and even nematodes (worms).  Until patients are treated for ALL pathogens and a faulty immune system they will not improve.  Again, all the doxy in the world isn’t going to cure this.  https://madisonarealymesupportgroup.com/2017/07/01/one-tick-bite-could-put-you-at-risk-for-at-least-6-different-diseases/  (The actual number is 16 & counting)

 

 

 

 

 

 

What is Air Hunger, Anyway?

https://globallymealliance.org/air-hunger-anyway/

WHAT IS AIR HUNGER, ANYWAY?

By Jennifer Crystal MARCH 22, 2018

CHRONIC LYME DISEASE & ITS CO-INFECTIONS, LIKE BABESIA, CAN PRODUCE UNIQUE SYMPTOMS. ONE OF THEM IS REFERRED TO AS AIR HUNGER.

When I tell people I have chronic Lyme and some of its co-infections, they often look at me quizzically and ask: “What’s a co-infection?” I explain that in addition to Lyme ticks can transmit other diseases as well. I get an understanding nod until I say the names of the diseases. Rarely have people heard of them: Babesia, Ehrlichia, and Bartonella. One of my graduate school professors got so tired of trying to say “Babesia” that he jokingly renamed it “babelicious.”

I get a similar reaction when I tell people that a chief symptom of Babesia is air hunger. Some hear the term and think of marathon runners or asthma patients. Most really have no idea what it actually means. Literally, it means to be hungry for air. But how is that related to Babesia, and what does the symptom actually entail?

Babesia is a parasite that eats the oxygen in red blood cells. This result is low blood oxygen levels in the body. When you are hungry for food, your stomach might grumble, and you might feel a gnawing or emptiness, a craving for sustenance. You might become lightheaded or even faint. The same is true when your blood is hungry for oxygen, except you feel the hunger in your cells rather than in your stomach.

You know when exercising how you can feel your blood pumping, whereupon endorphin release makes you vivacious and energized? That feeling when your muscles are a little tired from running or biking, but you’re also exhilarated, hitting that “runner’s high” when you feel like you can do a million jumping jacks?

I used to feel that, too. I used to ski for eight hours in the back bowls of the Rocky Mountains, bouncing through mogul fields with reckless abandon. And at the end of the day, my body would be loose and limber. I was tired, sure, but it was nothing that a good meal and a good night’s sleep couldn’t fix. The next morning, I’d be ready to ski again.

Then I got Lyme, Babesia, and Ehrlichia. At first, before the illnesses were properly diagnosed, I simply noticed that I couldn’t keep up with my fellow skiers as I used to. I tired more easily, needed more breaks, and often experienced blood sugar crashes and lightheadedness after a particularly intense run. Skiing at a high altitude means there’s less oxygen available, to begin with, but what I didn’t know was that a blood parasite was also compromising my oxygen levels.

As the tick-borne illnesses slowly took over my body, my post-exertional fatigue and hypoglycemia increased. Sometimes I’d experience these symptoms when I was simply walking down the street. I started to get terrible migraines, always after exercise but sometimes just after a long day of teaching, and sometimes for no apparent reason at all. What I didn’t know was that the oxygen level of my red blood cells was getting lower and lower, causing these debilitating symptoms.

One day towards the end of my second year of teaching in Colorado, I tried to go for a short hike near my apartment. I barely made it a few feet up the dirt path before I found myself gasping for air. I wanted to take a deep breath, but couldn’t get one. As I clutched my chest, another hiker asked if I was okay. “Asthma,” I wheezed, even though I’d never experienced that condition before.

A doctor did diagnose asthma but didn’t explain the sudden onset. He didn’t realize that my gasping for breath was a literal manifestation of air hunger caused by Babesia. Instead, he gave me an inhaler, which I sometimes needed to use in class; in the middle of a lecture, I would get so lightheaded and short of breath.

Later, when I was finally diagnosed with and treated for tick-borne illnesses, I experienced Herxheimer reactions so bad that skiing, hiking and even walking became activities of the past; I could barely get up a flight of stairs. Often my arms and legs would feel jumpy like I was having a panic attack. This is because they weren’t getting enough oxygen; the jumpiness was their way of “grumbling” like a stomach does when it needs food. My limbs felt, how can I put this? They felt empty, the opposite of the way they used to feel when they were pumped full of healthy oxygenated blood during exercise. I wanted to take a deep breath and send the air right to my limbs, right to my cells, to re-invigorate them, but I couldn’t.

Overeager during treatment, I started physical therapy too soon, and paid for it. A mere thirty seconds on a stationary bike left my limbs gasping for air. It seemed like a thick molasses was seeping through my whole body, weighing me down. A heavy sensation crept into my head, filling it with pressure until I was overtaken by a full-blown migraine. After, I was in bed for a week.

The good news about that experience is that it told my doctor I needed to increase my Babesia treatment. Anti-malarial medication got me back on my feet, eventually back on the stationary bike, and, finally, back on my skis. I don’t think I’ll ever be able to bounce through moguls for eight hours at a time again, but I can ski a full morning without getting air hunger. I can paddle-board or canoe for hours. Sometimes, when I push myself too hard, I feel a tightening in my chest for a day or two after exercise. And sometimes I begin to feel air hunger in my cells as I’m walking around the city, getting that jumpy feeling in my limbs when I climb a flight of stairs or get a headache shortly after exercise. This tells me that it’s time to increase the homeopathic drops I now take to keep Babesia at bay.

Now I can say to my doctor, “I’m starting to feel some air hunger,” and he knows exactly what we need to do. Hopefully, this explanation will be a revelation for those readers who, like me, were so long perplexed by this frightening undiagnosed symptom.

Opinions expressed by contributors are their own.

Jennifer Crystal is a writer and educator in Boston. She is working on a memoir about her journey with chronic tick-borne illness. Contact her at jennifercrystalwriter@gmail.com

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**Comment**

Great example of a nasty Babesia symptom.  My husband struggled particularly with the blood sugar crashes that could come on at any time, necessitating his keeping protein bars with him at all times.  He would literally begin shaking.  It was a frightening symptom that thankfully passed with treatment.

Besides air hunger, Babesia is known to cause horrific headaches and dizziness as well as chest pressure.  The good news is proper treatment will alleviate and often eliminate these symptoms, but doxycycline won’t do it.  You need proper anti-malarial drugs to kill this monster.

 

 

 

Reporting Tick Bites to Public Health Agencies Helps ID Risk Areas for Lyme Disease

https://entomologytoday.org/2018/03/07/reporting-tick-bites-to-public-health-agencies-helps-id-risk-areas-for-lyme-disease/  Entomology Today

Reporting Tick Bites to Public Health Agencies Helps ID Risk Areas for Lyme Disease
blacklegged-tick-life-stages

The blacklegged tick (Ixodes scapularis)—shown here in adult form (at right) and nymph (on blade of grass at left)—is the primary vector of the bacterial pathogen that causes Lyme disease. A study in Quebec has found that analysis of ticks submitted by citizens to public health agencies can help identify areas of emerging risk for Lyme disease outbreak. (Photo credit: Jim Occi, BugPics, Bugwood.org)

By Andrew Porterfield

Lyme disease is the most common vector-borne illness in the United States, amounting to between 20,000 and 35,000 reported cases every year. But not every state reports the disease; instead, nearly all cases come from 14 states, largely in the Northeast or Upper Midwest.

And now, Canada has started to report more cases. In the Province of Quebec alone, human cases have risen from two in 2008 to 174 in 2016. Public health officials are often challenged to find early signs of tick and disease infestation before the number of cases start increasing. The “gold standard” method of surveillance is “active,” which involves collecting tickets through dragging tick habitat with white flannel sampling equipment or capturing rodents and testing for tick presence. This method, however, is expensive, especially if it involves multiple sites and combining drag sampling and rodent capture.

Researchers at the University of Montreal have studied active surveillance as well as two other methods: “passive” methods that involve collecting ticks that are submitted voluntarily by veterinary clinics from pets and documenting reported human cases of Lyme disease that are submitted from medical clinics.

Lyme disease, named after the Connecticut town where it was first discovered, is spread by a bacterial spirochete, Borrelia burgdorferi, which is carried by ticks and some mammals. Typically, a blacklegged tick (Ixodes scapularis) will attach and feed on a mammal, often a rodent or deer. If that mammal is already carrying the pathogen, it can be transmitted to the tick. Or, conversely, an infected tick can transmit it to the host animal, which can then transmit it to other ticks. Then, when an infected tick bites a human, the human can become infected and contract the disease.

Marion Ripoche, a Ph.D. student at the University of Montreal, and her team discovered that passive surveillance was the most accurate method for predicting an emerging risk of Lyme disease. The team published its results today in the Journal of Medical Entomology.

The researchers used data collected in Quebec from 2009 to 2014 on I. scapularis collected through passive surveillance and tick nymphs collected through active methods (nymphs are far more prevalent and active, so make a better active collection target), as well as human disease reports.

For passive surveillance testing, the team used census subdivision data that had at least one passive tick report or human case (totaling 870 cases). To test active surveillance, they looked at census data and density of nymphs or infected nymphs, totaling 217 cases. They also collected human cases and compared active surveillance as a possible predictor of passive tick submissions.

Between 2009 and 2014, 6,261 I. scapularis larvae, nymphs, or adults were gathered through active surveillance. Of those, 13.4 percent were positive for B. burgdorferi. During the same period, passive surveillance data showed 1,702 people submitted a tick, mostly adults. About 12.9 percent were positive for B. burgdorferi. For human cases, 145 diseases were reported, 92 from local sites.

The study found that all three methods could signal some risk of a Lyme disease outbreak but that passive surveillance had the strongest relationship, comparing number of people bitten by a tick and the eventual number of human cases reported. The passive surveillance method could detect areas with at least three human cases and showed its usefulness as an early-detection system for public health officials.

“Public health authorities need an early signal for the timely detection of new at-risk areas,” the authors write. “This finding is significant in that it shows that the volume of passive tick submissions received from a municipality, which is the most geographically continuous signal of risk currently available, is able to successfully predict the emergence of human cases in that municipality.”

The researchers emphasize, however, that passive surveillance is good at early detection, but it should work in concert with the other two methods, not as a replacement. Both dragging and capture (active) and reported humn cases are essential for further determination of the extent of an infection, and successful public health agencies (such as in the Province of Quebec) will employ all three methods.

“Passive Tick Surveillance Provides an Accurate Early Signal of Emerging Lyme Disease Risk and Human Cases in Southern Canada”  Journal of Medical Entomology  https://academic.oup.com/jme/advance-article/doi/10.1093/jme/tjy030/4911759

Andrew Porterfield is a writer, editor, and communications consultant for academic institutions, companies, and nonprofits in the life sciences. He writes frequently about agriculture issues for the Genetic Literacy Project. He is based in Camarillo, California. Follow him on Twitter at @AMPorterfield or visit his Facebook page.

 

 

 

 

 

 

 

Ticks & TBI’s in Kentucky

https://www.ncbi.nlm.nih.gov/pubmed/29502988

Ticks Tick Borne Dis. 2018 Mar 1. pii: S1877-959X(17)30571-X. doi: 10.1016/j.ttbdis.2018.02.016. [Epub ahead of print]

Widespread distribution of ticks and selected tick-borne pathogens in Kentucky (USA).

Lockwood BH1, Stasiak I2, Pfaff MA1, Cleveland CA1, Yabsley MJ3.
Author information

Abstract
The geographical distribution of Ixodes scapularis and Amblyomma maculatum ticks is poorly understood in Kentucky. We conducted a convenience survey of wildlife species (white-tailed deer (Odocoileus virginianus), elk (Cervus canadensis) and black bears (Ursus americanus) for ticks from October 2015 to January 2017. We detected four tick species including Amblyomma americanum, Dermacentor albipictus, I. scapularis and A. maculatum. Although the former two tick species were previously known to be widely distributed in Kentucky, we also found that I. scapularis and A. maculatum were also widespread. Because of the limited data available for pathogens from I. scapularis and A. maculatum, we tested them for Borrelia and Rickettsia spp. by polymerase chain reaction assays. Prevalence of Borrelia burgdorferi sensu stricto and Rickettsia parkeri were 11% and 3%, respectively. These data indicate that public health measures are important to prevent tick-borne diseases in Kentucky.

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**Comment**

The data is going to continue to pour in from all over.  Those in the South have long been pushed aside, denied diagnosis and treatment due to certain ticks or diseases. “not being there.”  Somebody has to be the first case, but if you don’t allow a first case, “it doesn’t exist there.”  It’s like being trapped in a Kafka novel with no way out.

https://madisonarealymesupportgroup.com/2017/10/06/remembering-dr-masters-the-rebel-for-lyme-patients-who-took-on-the-cdc-single-handedly/

https://madisonarealymesupportgroup.com/2016/09/24/arkansas-kids-denied-lyme-treatment/

https://madisonarealymesupportgroup.com/2018/02/06/lyme-in-the-southern-hemisphere-sexual-transmission/

https://madisonarealymesupportgroup.com/2018/03/11/range-expansion-of-tick-disease-vectors-in-north-america-implications-for-spread-of-tick-borne-disease/

I wish they would test these ticks for more than the one or two pathogens that seem popular these days.  There are approximately 16 diseases that ticks can spread.  Authorities are still bickering about Bartonella being transmitted by ticks; however, the majority of patients I work with all have Bart, making transmission by ticks highly probable. 

https://madisonarealymesupportgroup.com/2017/07/01/one-tick-bite-could-put-you-at-risk-for-at-least-6-different-diseases/ (The number is more like 16 not 6.  It’s probably more than that.)

Babesiosis
Bartonellosis
Borrelia miyamotoi
Bourbon Virus
Colorado Tick Fever
Ehrlichiosis/Anaplasmosis
Heartland Virus
Meat Allergy/Alpha Gal
Pacific Coast Tick Fever: Richettsia philipii
Powassan Encephalitis
Q Fever
Rickettsia parkeri Richettsiosis
Rocky Mountain Spotted Fever
STARI: Southern Tick-Associated Rash Illness
Rick Paralysis
Tularemia

Then there’s the whole issue of other insects being able to transmit.

We have a lot of work to do and a lot of answers to find.