Archive for the ‘Borrelia Miyamotoi (Relapsing Fever Group)’ Category

Tick Infestations of Wildlife & Companion Animals in Ontario, Canada, With Detection of Human Pathogens in Ixodes Scapularis Ticks

https://www.ncbi.nlm.nih.gov/m/pubmed/30206012/

Tick infestations of wildlife and companion animals in Ontario, Canada, with detection of human pathogens in Ixodes scapularis ticks.

Smith KA, et al. Ticks Tick Borne Dis. 2018.

Abstract

The growing risk of transmission of tick-borne zoonotic pathogens to humans in Ontario, Canada, warrants investigations into regional tick distribution, tick burdens of local peridomestic animals, and prevalence of tick-borne pathogens. The objectives of this study were to investigate the geographic distribution and magnitude of tick infestations in opportunistically sampled mammalian wildlife and companion animals (i.e., dogs) in southern Ontario and to test these ticks for evidence of zoonotic tick-borne pathogens. Ticks collected from wildlife carcasses, live-trapped wildlife and companion animals (2015-2016), as well as wildlife diagnostic cases (2011-2013), were identified to species and life stage.

Ixodes scapularis ticks were tested by real-time PCR for Anaplasma phagocytophilum, Babesia microti, Borrelia miyamotoi and Borrelia burgdorferi sensu stricto (s.s.). Amblyomma americanum ticks were tested for Ehrlichia chaffeensis. A total of 1687 ticks of six species were collected from 334 animals, including 224 raccoons (n = 1381 ticks) and 50 dogs (n = 67 ticks).

The most common tick species collected from parasitized raccoons were Ixodes texanus (n = 666 ticks) and Dermacentor variabilis (n = 600 ticks), which were removed from 58.5% (median: 2 ticks; range: 1-36) and 49.1% (median: 2 ticks; range: 1-64) of raccoons, respectively. Of I. scapularis tested, 9.3% (4/43) were positive for Bo. burgdorferi s.s. and 2.3% (1/43) for A. phagocytophilum. These results reveal that numerous tick species parasitize common, peridomestic wildlife and that at least two zoonotic, tick-borne pathogens circulate in southern Ontario. Host-tick vector-pathogen dynamics should continue to be monitored in the face of global climate change, landscape alterations and expanding human populations.

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**Comment**

This researcher obviously hasn’t read his own countryman’s work:  https://madisonarealymesupportgroup.com/2018/08/13/study-shows-lyme-not-propelled-by-climate-change/   Another problem with the climate change models is they overlook the fact that deer ticks were established in northwestern Ontario, southern Manitoba and were already in central Canada prior to 1970. What they predict to happen in the future has already happened in Canada. Their oversight caused a skewed rate of tick expansion and a miscalculation of northward projected movement.

“For blacklegged ticks, climate change is an apocryphal issue.” -John Scott

apocryphal:
adj. Of questionable authorship or authenticity
adj. Erroneous; fictitious

PCR Assays for Borrelia Hermsii (Tick-borne Relapsing Fever Species)

https://www.ncbi.nlm.nih.gov/m/pubmed/30131238/

Novel real-time PCR assays for genomic group identification of tick-borne relapsing fever species Borrelia hermsii.

Modarelli JJ, et al. Diagn Microbiol Infect Dis. 2018.
Diagn Microbiol Infect Dis. 2018 Aug 8. pii: S0732-8893(18)30257-8. doi: 10.1016/j.diagmicrobio.2018.08.001. [Epub ahead of print]

Abstract

Borrelia hermsii is a non-Lyme borreliosis pathogen that is responsible for causing tick-borne relapsing fever in humans and animals in the western United States. B. hermsii has been described to encompass two divergent genomic groups, GGI and GGII, which have been suggested to maintain a unique geographical distribution and potential range of pathogenicity. Though the genomic groups have been extensively documented in the literature, a real-time PCR tool for identifying these genomic groups is lacking. This study describes the development and validation of two flaB-based quantitative real-time PCR assays for differentiating between the two genomic groups of B. hermsii while also maintaining specificity against other closely related Borrelia species. The diagnostic specificity of the assays were evaluated using a large panel of various Borrelia species, including a collection of 22 B. hermsii culture isolates purified from various hosts. The high sensitivity and specificity of the assays provide a useful tool for supporting future studies aimed at evaluating the geographical distribution as well as potential intraspecies pathogenicity within arthropod vectors and mammalian hosts.

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**Comment**

While the study outcome was to determine geographical distribution and potential intraspecies pathogenicity, I for one would like to see a switch in thinking to less concern for geography and more concern for accurate testing for patient diagnosis.  The geographical emphasis has worked against patients for over 40 years and according to everything coming across this desk, I think we need to embrace this pandemic for what it is – a pandemic that knows no borders.

The sooner we quit looking at maps the sooner patients are going to be believed, validated, and actually helped.

Go here for more on Tick-relapsing fever:  https://madisonarealymesupportgroup.com/2018/09/04/borrelia-miyamotoi-in-immunocompetent-patient/  Please notice Dr. Cameron’s comment about another relapsing fever caused by Bm:  “You might assume a patient infected with Borrelia miyamotoi, a relapsing fever spirochete, to present with a relapsing fever. However, your assumption would be wrong 48 out of 50 times, according to a case series published in the Annals of Internal Medicine. [1] The authors found that only 2 out of 50 patients infected with the relapsing spirochete B. miyamotoi actually presented with a relapsing fever. [1]….The individuals exhibited symptoms similar to those found in other tick-borne illnesses.

So while researchers are trying to separate out all the various strains and the particular geography, clinicians are struggling with the fact that although many of the strains are supposed to be “relapsing fever” they actually present clinically like other TBI’s such as Lyme and cause a clinical picture quite different from relapsing fever.  This is paramount for clinicians to understand as the patients showing up in their offices have symptoms quite different from what the researchers are stating.

Be your own advocate and learn as much as you can.  Chances are you will be educating your practitioner.

 

Borrelia Miyamotoi in Immunocompetent Patient

https://wwwnc.cdc.gov/eid/article/24/9/18-0806_article

Borrelia miyamotoi Disease in an Immunocompetent Patient, Western Europe

Hoornstra D, Koetsveld J, Sprong H, et al. Borrelia miyamotoi Disease in an Immunocompetent Patient, Western Europe. Emerging Infectious Diseases. 2018;24(9):1770-1772. doi:10.3201/eid2409.180806.

Abstract

Borrelia miyamotoi disease is a hard tick–borne relapsing fever illness that occurs across the temperate climate zone. Human B. miyamotoi disease in immunocompetent patients has been described in Russia, North America, and Japan. We describe a case of B. miyamotoi disease in an immunocompetent patient in western Europe.

“Molecular tests of blood and skin biopsy and serologic testing for Borrelia burgdorferi sensu lato and syphilis were repeatedly negative, except for a C6 EIA IgM/IgG seroconversion (Immunetics, Boston, MA, USA) in convalescent-phase serum samples that was positive but could not be confirmed by either IgM or IgG immunoblot (Mikrogen, Neuried, Germany) (Technical Appendix Table 2). We did not admit the patient to the hospital, and we did not initiate antimicrobial drug treatment because her symptoms had largely resolved. At a 2-month follow-up visit, the patient had fully recovered, and laboratory test results were normal.

In a well-described cohort of PCR-positive patients in Russia, characteristic clinical symptoms were fever, myalgia, nausea, and headaches; laboratory findings showed thrombocytopenia and diffuse organ damage (3).

That the patient recovered even without antimicrobial treatment is consistent with a recent BMD case described in the United States (9). Because of the initial skin rash, we did not completely rule out B. burgdorferi s.l. co-infection; however, prior evaluation by an independent dermatologist, a negative B. burgdorferi s.l. immunoblot despite high C6 reactivity, and a negative PCR on DNA obtained from the skin biopsy argue against co-infection. Regardless, the clinical picture of fever and mild leukopenia and thrombocytopenia is compatible with BMD and not with Lyme borreliosis. Of interest, C6 reactivity in combination with a negative B. burgdorferi s.l. immunoblot has been described in BMD patients in the United States (10).”

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**Comment**

Three weeks after a tick bite, a 72 year old Dutch woman reported a bullseye rash several days later with a fever.  This was followed by headache, weight loss, and muscle & joint pain.

Notice the repeatedly negative test results.  

The denial of antimicrobial treatment is pretty amazing considering the admission of the “well-described cohort of PCR-positive patients in Russia, characteristic clinical symptoms were fever, myalgia, nausea, and headaches; laboratory findings showed thrombocytopenia and diffuse organ damage.”

Are they really going to deny an elderly woman antimicrobial treatment even when diffuse organ damage is on the record?

Medical professionals continue to baffle me.

Dr. Cameron states:  “Until now, there have been no treatment guidelines for B. miyamotoi and regimes have been empirically based on the treatment for Lyme disease. ‘The antimicrobial susceptibility of B. miyamotoi has not yet been elucidated, due to difficulties with cultivation of B. miyamotoi spirochetes in vitro,’ according to Koetsveld.  http://danielcameronmd.com/best-antibiotics-treat-borrelia-miyamotoi/  The study authors demonstrated that B. miyamotoi is susceptible to doxycycline, azithromycin, and ceftriaxone but resistant to amoxicillin in vitro. The next step would be to show whether these drugs work in patients.”

The denial of this plague where so much is unknown is an ever cause for concern.  People are dying out here and all they can do is smugly state that her symptoms had largely resolved.  I will add to this very troubling statement, and will very probably come raging back at an undetermined date in the future!

For more:  https://madisonarealymesupportgroup.com/category/borrelia-miyamotoi-relapsing-fever-group/

http://danielcameronmd.com/dont-count-on-a-relapsing-fever-to-diagnose-borrelia-miyamotoi/   “You might assume a patient infected with Borrelia miyamotoi, a relapsing fever spirochete, to present with a relapsing fever. However, your assumption would be wrong 48 out of 50 times, according to a case series published in the Annals of Internal Medicine. [1] The authors found that only 2 out of 50 patients infected with the relapsing spirochete B. miyamotoi actually presented with a relapsing fever. [1]….The individuals exhibited symptoms similar to those found in other tick-borne illnesses. The majority presented with headaches, myalgias, arthralgias, and malaise/fatigue. ‘More than 50% were suspected of having sepsis, and 24% required hospitalization,’ states Molloy. [1]…..’Serologic testing using the rGlpQ EIA seems insensitive in diagnosing acute BMD infection given that it was positive for IgG or IgM in only 16% of the case patient samples at the time of clinical presentation,’ states Molloy. The rGlpQ was positive after the fact in 86% of the patients during convalescence. [1]….Elevated liver enzyme levels, neutropenia, and thrombocytopenia were common in 75%, 60% and 51% respectively. ‘Borrelia miyamotoi disease may be clinically similar to or be confused with human anaplasmosis,’ according to Molloy….B. miyamotoi has emerged as a leading cause of hard tick-transmitted infections but lacks a clear diagnostic criteria. According to Molloy, “Infection with B. miyamotoi is the fifth recognized Ixodes-transmitted infection in the northeastern United States and should be part of the differential diagnosis of febrile patients from areas where deer tick–transmitted infections are endemic.'”

http://danielcameronmd.com/larval-ticks-borrelia-miyamotoi/

https://igenex.com/ticktalk/2018/01/11/borreliosis-relapsing-fever-disease/

 

 

Borrelia Miyamotoi Found to Occur Nationwide in Japan

https://www.ncbi.nlm.nih.gov/m/pubmed/30057339/

Case control study: Serological evidence that Borrelia miyamotoi disease occurs nationwide in Japan.

Sato K, et al. J Infect Chemother. 2018.

Abstract

Since 2011, Borrelia miyamotoi disease (BMD) has been reported in five countries in the northern hemisphere. The causative agent of BMD is transmitted by Ixodes ticks, which are also vectors of Lyme disease borreliae. In this study, we examined 459 cases of clinically suspected Lyme disease (LD group), and found twelve cases that were seropositive for the glycerophosphodiester phosphodiesterase (GlpQ) antigen derived from B. miyamotoi.The retrospective surveillance revealed that the seroprevalence of anti-GlpQ in the LD group was significantly higher than in a healthy cohort. Seropositive cases were observed from spring through autumn when ticks are active, and the cases were geographically widespread, being found in Hokkaido-Tohoku, Kanto, Chubu, Kinki, and Kyushu-Okinawa regions. Seropositive cases for GlpQ were most frequent in the Chubu region (6.3%) where B. miyamotoi has been found in Ixodes ticks. Out of the twelve cases that were found in the LD group, three cases exhibited concomitant seropositivity to Lyme disease borreliae by western blot assay. This is the first report of serological surveillance for BMD in Japan, and we conclude that BMD occurs nationwide.

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**Comment**

Please note that they are saying out of 459 cases of clinically suspected Lyme, 12 ALSO had B. miyamotoi.

This is a prime example of people having more than one tick borne illness and the need to change the current CDC Lyme guidelines as they are woefully out of touch.  In my experience, coinfection is the rule not the exception and until people are treated appropriately, they will never get better.

For more:  https://madisonarealymesupportgroup.com/2017/07/01/one-tick-bite-could-put-you-at-risk-for-at-least-6-different-diseases/  (The actual number is 18 and counting)

https://madisonarealymesupportgroup.com/2017/05/01/co-infection-of-ticks-the-rule-rather-than-the-exception/

The Ixodes ricinus tick species is able to transmit a large number of bacteria, viruses and parasites. Ticks may also be co-infected with several pathogens, with a subsequent high likelihood of co-transmission to humans or animals.

https://madisonarealymesupportgroup.com/2018/08/11/co-infection-patterns-in-wisconsin-black-legged-ticks-show-associations-between-viral-eukaryotic-bacterial-microorganisms/

https://madisonarealymesupportgroup.com/2018/07/16/this-family-learned-tick-bites-can-transmit-more-than-lyme-disease/

 

 

 

Milford Pathologist Fires Broadside at CDC Motion to Discuss

https://www.change.org/p/1120418/u/23141062?

Milford Conn. Pathologist Fires Broadside at CDC Motion to Dismiss

Carl Tuttle
Hudson, NH
AUG 15, 2018 —

MILFORD MOLECULAR DIAGNOSTICS
2044 Bridgeport Avenue
Milford, CT 06460
www.dnalymetest.com
August 15, 2018
Media Contact: Kevin Moore, 203-788-8497

FOR IMMEDIATE RELEASE

Milford Conn. Pathologist Fires Broadside at CDC Motion to Dismiss in Groundbreaking $57.1 Million Lyme Disease Lawsuit

Demonstrates that CDC relied on “unreliable” Wikipedia as source to discredit Dr. Lee

Milford, Conn… Sin Hang Lee, M.D., the Connecticut pathologist who, in May, filed a $57.1 million lawsuit against the Centers for Disease Control, in a legal opposition to the CDC’s motion to dismiss his lawsuit, informed the U.S. Court of Federal Claims, that the CDC had relied on unverifiable, non-peer reviewed Wikipedia as a source for informational support to back its motion to dismiss.

To suppress direct detection tests for Lyme disease,” said Dr. Lee, referring to the Sanger DNA sequencing testing method that he employs, and, which is at the heart of his lawsuit, “the CDC is willing to exhaust all of its administrative remedies. When its patented metabolomics technology could not stop Sanger sequencing in science, the CDC told its lawyers to look up Wikipedia for help in a motion to dismiss my lawsuit.”

In 2013, after testing two panels of Lyme disease reference serum samples from the CDC by Sanger sequencing, Dr. Lee informed the CDC that some of the archived serum samples taken from patients with Lyme disease in fact were positive for Borrelia miyamotoi and a novel unnamed relapsing fever borrelia, and published the data in a peer-reviewed article. Years later, the CDC claimed in social media that Dr. Lee published “inconsistent results”  https://www.change.org/p/the-us-senate-calling-for-a-congressional-investigation-of-the-cdc-idsa-and-aldf/u/15796418  while promoting its own, newly patented, unproven metabolomics technology for diagnosis of Lyme disease.

In order to deny the facts that clinical Lyme disease may be caused by a diversity of borrelial strains of bacteria, the CDC instructed its lawyers to quote Wikipedia, an online encyclopedia with no peer review, as the alternative science to discredit Dr. Lee’s work in the U.S. Court of Federal Claims. The CDC attorneys then filed the following with the U.S. Court of Federal Claims:

“However, Borrelia miyamotoi is not a causative agent of Lyme disease. Wikipedia, https://en.wikipedia.org/wiki/Borrelia_ miyamotoi p. 1 (“Although infection [with Borrelia miyamotoi] can cause some similar symptoms [as Lyme disease] including fever, headache, fatigue, and muscle aches, acute Lyme disease often presents with rash, while infection with B. miyamotoi does not; it remains unclear whether B. miyamotoi causes a relapsing fever syndrome”).

In the PLAINTIFF’S RESPONSE TO MOTION TO DISMISS filed on August 13, 2018, Dr. Lee’s attorney, Mary Alice Moore Leonhardt, countered with the following statement:

“The Defendant relied on the inherently unreliable website Wikipedia in its attempt to discredit Dr. Lee, rather than the CDC’s own data. The CDC expressly acknowledges that Borrelia miyamotoi causes hard tick relapsing fever and Borrelia miyamotoi infection causes fever, chills and headache which are common symptoms in Lyme disease, and may cause skin rash in about 8% of the patients (4/51). (CDC, Borrelia miyamotoi Disease, available at https://www.cdc.gov/ticks/tickbornediseases/borrelia-miyamotoi.html
CDC, B. miyamotoi, available at https://www.cdc.gov/ticks/miyamotoi.html Thus, Dr. Lee’s test results detected the presence of two tick-borne illnesses, including Lyme disease and a disease that presents in similar ways to Lyme disease. These results were 100% accurate as confirmed through the DNA sequencing with the Gene Bank.”
The CDC should come out to debate the science and technology in direct detection testing for the diagnosis of Lyme disease instead of hiding behind a wall of lawyers and Wikipedia encyclopedia,” said Dr. Lee. “Accurate diagnosis of Lyme borreliosis must not be stopped by CDC lawyers.”
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* The official documents with Appendix filed in the U.S. Court of Federal Claims can be accessed through the Drop Box. Complete filing here: https://www.dropbox.com/sh/zkcp96z7eua1fnn/AAA377iX8aZFQZs7BlQbUGb5a?dl=0

Milford Molecular Diagnostics Laboratory:  http://www.dnalymetest.com/lymediseasednatesting.html  
Milford Medical Laboratory offers the first reliable DNA test for Lyme disease bacteria and B. miyamotoi, the spirochete causing a Lyme disease-like infection.
http://www.dnalymetest.com