Archive for the ‘Viruses’ Category

Zoonotic Implications of Changing Tick Populations

https://www.americanveterinarian.com/news/zoonotic-implications-of-changing-tick-populations

October 25, 2018

Zoonotic Implications of Changing Tick Populations

As environmental changes allow tick populations to spread, the zoonotic risk of tickborne diseases increases.

By Kate Boatright, VMD

Between 1940 and 2004, the majority of emerging human infectious diseases worldwide were zoonotic. Of these, nearly one-quarter were arthropod vector-borne diseases, with ticks being the most common vector. In the United States, tickborne diseases account for about 95% of vector-borne diseases.

A recent review article in Veterinary Sciences examined many factors of tick biology, including the changing geographic distribution of tick populations and the impact of this change on associated tickborne diseases.

Ixodes Ticks and Associated Pathogens

Ixodid ticks exist worldwide. Warmer temperatures and changing humidity have allowed for northern expansion in North America, Europe, and Russia. Many significant zoonotic pathogens are carried by these ticks:

  • Borrelia burgdorferi, the causative agent of Lyme disease, is now seen throughout the United States, Canada, and Europe.
  • New Borrelia species identified worldwide have been implicated as additional causative agents of Lyme disease (Borrelia mayonii) and a relapsing fever (Borrelia miyamotoi).
  • Babesiosis, caused by over 100 different Babesia species, is especially significant for cattle and humans. Human babesiosis cases are expected to be seen in Canada due to the increased number of Ixodes scapularis ticks, and new Babesia species are now seen in regions not previously known to have babesiosis.
  • Anaplasma phagocytophilum is the causative agent of human granulocytic anaplasmosis (HGA), equine anaplasmosis, and febrile diseases in ruminants, cats, and dogs. Reports of HGA in the United States increased by a factor of 12 between 2001 and 2011.
  • Co-infections are common in individuals exhibiting disease from an Ixodes tick vector. Ten percent of individuals infected with Anaplasma also had antibodies to B burgdorferi or Babesia microti.
Ambylomma Ticks and Ehrlichia

In the United States, Amblyomma americanum ticks have expanded both north and west as white-tailed deer populations have increased in these regions. All life stages of this tick species can feed on humans and deer, increasing the potential for transmission of Ehrlichia chaffeensis and Ehrlichia ewingii, the most common causes of human monocytic ehrlichiosis.

In the rest of the world, other Amblyomma ticks serve as vectors for multiple species of Ehrlichia, including new genetic variants classified as Candidatus Neoehrlichia species in Europe and Asia. For veterinarians, heartwater disease, caused by Ehrlichia ruminantium, is an increasingly important reportable disease of ruminants in Africa and the Caribbean.

Viral Vector-Borne Diseases

Vector-borne viruses are another emerging global zoonotic threat. Many tick species carry viruses of increasing public health importance:

  • Rhipicephalus microplus and Haemaphysalis longicornis ticks in China and Amblyomma americanum in the United States are known vectors of closely related viruses causing severe fever and thrombocytopenia. In the United States, this virus is known as heartland virus.
  • Bourbon virus was recently discovered in the United States.
  • Powassan virus is reemerging in North America.
  • Tickborne encephalitis viruses are broadening in range throughout Europe as reforestation and movement of dogs allows the range of their vector, Dermacentor reticulatus, to expand into Germany, the Netherlands, and Poland.
  • Crimean-Congo hemorrhagic fever virus is spreading to multiple countries in the Mediterranean, likely due to the transportation of its tick vector, Hyalomma marginatum, by birds from Africa, Asia, and Eastern Europe to Central Europe.
Take-Home Message

Practitioners in both veterinary and human medicine must remain aware of the changing geography of ticks and associated vector-borne diseases. The discovery of the Asian tick H longicornis in New Jersey and Virginia should be an important reminder of the fact that

“ticks and tickborne pathogens do not recognize international boundaries.”

Thus, “a robust international disease monitoring network” is needed to protect both human and animal health from both known and emerging tick-borne diseases.
Dr. Boatright, a 2013 graduate of the University of Pennsylvania, is an associate veterinarian in western Pennsylvania. She is actively involved in her state and local veterinary medical associations and is a former national officer of the Veterinary Business Management Association.

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**Comment**

Independent Canadian tick researcher states it’s migrating birds and photoperiod allowing tick populations to spread, not climate issues:  https://madisonarealymesupportgroup.com/2018/08/13/study-shows-lyme-not-propelled-by-climate-change/

This groundbreaking study:  https://madisonarealymesupportgroup.com/2018/10/30/study-shows-lyme-msids-patients-infected-with-many-pathogens-and-explains-why-we-are-so-sick/ shows a 85% probability for multiple infections in patients suffering from tick borne disease, including not only tick-borne pathogens but also opportunistic microbes such as EBV and other viruses.

Key Quote:

“Our findings recognize that microbial infections in patients suffering from TBDs do not follow the one microbe, one disease Germ Theory as 65% of the TBD patients produce immune responses to various microbes.”

Eighty three percent of all commercial tests focus only on Lyme (borrelia), despite the fact we are infected with more than one microbe. It takes 11 different visits to 11 different doctors, utilizing 11 different tests to be properly diagnosed. https://www.news-medical.net/news/20181101/Tick-borne-disease-is-multiple-microbial-in-nature.aspx?

Time for things to change.

 

 

Prophage-driven Genomic Structural Changes Promote Bartonella Vertical Evolution

https://www.ncbi.nlm.nih.gov/m/pubmed/30346520/

Prophage-driven genomic structural changes promote Bartonella vertical evolution

Genome Biology and Evolution, evy236, https://doi.org/10.1093/gbe/evy236
22 October 2018

Abstract

Bartonella is a genetically diverse group of vector-borne bacteria. Over 40 species have been characterized to date, mainly from mammalian reservoirs and arthropod vectors. Rodent reservoirs harbor one of the largest Bartonella diversity described to date, and novel species and genetic variants are continuously identified from these hosts. Yet, it is still unknown if this significant genetic diversity stems from adaptation to different niches or from intrinsic high mutation rates. Here, we explored the vertical occurrence of spontaneous genomic alterations in 18 lines derived from two rodent-associated Bartonella elizabethae-like strains, evolved in non-selective agar plates under conditions mimicking their vector- and mammalian-associated temperatures, and the transmission cycles between them (i.e. 26 °C, 37 °C, and alterations between the two), using mutation accumulation experiments.

After ∼1000 generations, evolved genomes revealed few point mutations (average of one-point mutation per line), evidencing conserved single-nucleotide mutation rates. Interestingly, three large structural genomic changes (two large deletions and an inversion) were identified over all lines, associated with prophages and surface adhesin genes. Particularly, a prophage, deleted during constant propagation at 37 °C, was associated with an increased autonomous replication at 26 °C (the flea-associated temperature). Complementary molecular analyses of wild strains, isolated from desert rodents and their fleas, further supported the occurrence of structural genomic variations and prophage-associated deletions in nature. Our findings suggest that structural genomic changes represent an effective intrinsic mechanism to generate diversity in slow-growing bacteria and emphasize the role of prophages as promoters of diversity in nature.

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**Comment**

Bacteriophages or simply phages were discovered in the early 1900’s and are viruses which infect a bacterium causing horizontal gene transfer which in turn causes bacterial evolution.  

If you don’t know it yet, what goes into a Lyme/MSIDS patient is not what comes out.  These critters morph inside us turning into something quite different, which is one reason this complex is so difficult to treat.

When I read a book on antibiotic resistance, thankfully something that is not occurring yet in Lyme/MSIDS with few exceptions, I learned of phage therapy.  If this interests you check this out (located in the Republic of Georgia):  https://www.phagetherapycenter.com/pii/PatientServlet?command=static_phagetherapy

News articles on phage therapy:  https://www.phagetherapycenter.com/pii/PatientServlet?command=static_news&secnavpos=4&language=0

I’ve been told phage therapy wouldn’t work with Lyme/MSIDS due to the lack of host specificity.  In other words, the phage must directly line up with the specific bacteria in order to work.  Also, most of us are dealing with more than one bacteria, and battle worms, parasites, and other lovely beasts thrown into the mix to keep us humble.

The take home from this abstract is that the bacteria we are infected with are intelligent and stealthy, changing within us to further their goals.  They don’t want to kill us, just maim and weaken us so they can live long, full lives.  Also, notice “slow-growing bacteria,” which should serve as a clue to practitioners that these types of organisms scoff at 21 days of antibiotics.

Diagnosing & Treating Autoimmune Encephalitis in Patients with Persistent Lyme Symptoms

 Approx. 47 Min.

Dr. Frid: Diagnosing and Treating Infectious Induced AE in Patients with Persistent Lyme Symptoms

Dr. Elena Frid talk Diagnosing and Treating Infections Induced Autoimmune Encephalitis in Patient’s with Persistent Lyme Symptoms to physicians and patients at the Central Mass Lyme conference

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More with Dr. Frid:  https://madisonarealymesupportgroup.com/2018/03/14/dr-frid-children-lyme/

https://madisonarealymesupportgroup.com/2017/11/24/dr-frid-lyme-parkinsons-autoimmunity/

https://madisonarealymesupportgroup.com/2017/08/09/meet-the-lyme-disease-experts-dr-elena-frid-and-more/

https://madisonarealymesupportgroup.com/2018/04/17/dr-frid-mary-beth-pfeiffer-on-fox5/

More on Lyme encephalitis:  https://madisonarealymesupportgroup.com/2018/07/03/lyme-meningoencephalitis-masquerading-as-normal-pressure-hydrocephalus/

https://madisonarealymesupportgroup.com/2017/10/30/tick-borne-encephalitis-found-in-serbian-dogs-horses-wild-boar-and-roe-deer/

https://madisonarealymesupportgroup.com/2017/10/01/panspandas-steroids-autoimmune-disease-lymemsids-the-need-for-medical-collaboration/  There is often involvement with Lyme/MSIDS in both Autism and PANS.  Here we see a story of Patrik, who was diagnosed with Lyme Disease which then morphs into Autoimmune encephalopathy. It took 10 years and 20 doctors to obtain the Lyme disease diagnosis behind his autoimmune condition.

How many people are slipping through this crack?

This pivotal study shows the complex issue of coinfections and the Lyme persister organism in lowering patients’ immune system thereby opening the door to opportunistic infections which can cause encephalopathy:  https://madisonarealymesupportgroup.com/2018/10/30/study-shows-lyme-msids-patients-infected-with-many-pathogens-and-explains-why-we-are-so-sick/

 

 

 

Hawk Found Carrying Asian Long-horned Tick – the One that Drains Cattle of all Their Blood

https://www.localdvm.com/news/virginia/virginia-hawk-first-bird-in-north-america-found-carrying-invasive-tick/1560920669  (News story found here)

It’s confirmed.  The tick from hell has been found on a hawk in Virginia.  

This Asian “dracula” tick causes SFTS (severe fever with thrombocytopenia syndrome), “an emerging hemorrhagic fever,” causing  fever, fatigue, headache, nausea, muscle pain, diarrhea, vomiting, abdominal pain, disease of the lymph nodes, and conjunctival congestion, but the potential impact of this tick on tickborne illness is not yet known. In other parts of the world, this Longhorned tick, also called the East Asian or bush tick, and has been associated with several tickborne diseases, such as spotted fever rickettsioses, Anaplasma, Ehrlichia, and Borrelia, the causative agent of Lyme Disease.  https://madisonarealymesupportgroup.com/2018/06/12/first-longhorned-tick-confirmed-in-arkansas/

Main concerns:

  1. IT CLONES ITSELF & MULTIPLIES QUICKLY…..
  2. It can drain cattle of their blood: https://madisonarealymesupportgroup.com/2018/03/12/asian-tick-found-in-new-jersey-can-kill-cattle-by-draining-them-of-blood/
  3. It’s been known to cause disease in Asia
  4. A top ecologist wonders if infection by this tick has gone undetected in the past.
  5. There isn’t a systematic national method to look for invasive ticks.
  6. It’s quickly showing up in other states: https://madisonarealymesupportgroup.com/2018/05/26/tick-from-hell-now-sited-in-west-virginia/
  7. It survives cold temps: https://madisonarealymesupportgroup.com/2018/04/21/ticks-from-hell-survived-the-winter/ (Again, the spread if ticks and infection has ZIPPO to do with climate change)

https://madisonarealymesupportgroup.com/2018/09/12/three-surprising-things-i-learned-about-asian-longhorned-ticks-the-tick-guy-tom-mather/  Tick guy, Tom Mather, found that this particular tick, which reproduces by cloning itself, lines up on a single blade of grass motionless, tightly knitted together like the scales on a snake.  Once they found one glad of grass like this, they started seeing this every couple of feet.  He quickly realized this is NOT a rare tick.

LIKE A BOMB, THEY EXPLODE WHEN SOMETHING BRUSHES BY.

three_surprising_4.png

https://madisonarealymesupportgroup.com/2018/07/19/rutgers-racing-to-contain-asian-longhorned-tick/

https://madisonarealymesupportgroup.com/2017/08/17/of-birds-and-ticks/

https://madisonarealymesupportgroup.com/2018/06/08/hemorrhagic-fever-virus-found-on-ticks-on-migratory-birds/

https://madisonarealymesupportgroup.com/2016/10/02/the-role-of-birds-in-tickborne-illness/

Study Shows Lyme/MSIDS Patients Infected With Many Pathogens and Explains Why We Are So Sick

**UPDATE May 2022**

This important article was retracted in Feb. 2022 due to:

The main method utilised in this study is an ELISA assay. An investigation by the University of Jyväskylä, Finland, has concluded that the patient selection and description in this Article, and in an unpublished report validating the methods used, do not justify the results presented. The Editors therefore no longer have confidence in the results and conclusions presented in this Article.

Please note that the scientists disagree with the retraction:

Kunal Garg, Leena Meriläinen, Heidi Pirttinen, Marco Quevedo-Diaz, Stephen Croucher and Leona Gilbert disagree with this retraction. Ole Franz did not respond to correspondence from the Editors about this retraction.

I can only surmise that ‘the powers that be’ are not happy with the attention this work has gotten and therefore want to erase it from history.

https://www.nature.com/articles/s41598-018-34393-9?fbclid=IwAR3k-zPy2rJu8OuFl3HHqJ0twLPJvQrxiIUALUs0T-BuuJ50_1VQVwcflIQ (Please see comment at end of article)

Evaluating polymicrobial immune responses in patients suffering from tick-borne diseases

Kunal Garg, Leena Meriläinen, Ole Franz, Heidi Pirttinen, Marco Quevedo-Diaz, Stephen Croucher & Leona Gilbert
Scientific Reportsvolume 8, Article number: 15932 (2018)   https://doi.org/10.1038/s41598-018-34393-9

Abstract
There is insufficient evidence to support screening of various tick-borne diseases (TBD) related microbes alongside Borrelia in patients suffering from TBD. To evaluate the involvement of multiple microbial immune responses in patients experiencing TBD we utilized enzyme-linked immunosorbent assay. Four hundred and thirty-two human serum samples organized into seven categories followed Centers for Disease Control and Prevention two-tier Lyme disease (LD) diagnosis guidelines and Infectious Disease Society of America guidelines for post-treatment Lyme disease syndrome. All patient categories were tested for their immunoglobulin M (IgM) and G (IgG) responses against 20 microbes associated with TBD. Our findings recognize that microbial infections in patients suffering from TBDs do not follow the one microbe, one disease Germ Theory as 65% of the TBD patients produce immune responses to various microbes. We have established a causal association between TBD patients and TBD associated co-infections and essential opportunistic microbes following Bradford Hill’s criteria. This study indicated an 85% probability that a randomly selected TBD patient will respond to Borrelia and other related TBD microbes rather than to Borrelia alone.

A paradigm shift is required in current healthcare policies to diagnose TBD so that patients can get tested and treated even for opportunistic infections.
Please see link for full article.  Snippets below:

Introduction
Tick-borne diseases (TBDs) have become a global public health challenge and will affect over 35% of the global population by 20501. The most common tick-borne bacteria are from the Borrelia burgdorferi sensu lato (s.l.) group. However, ticks can also transmit co-infections like Babesia spp.2, Bartonella spp.3, Brucella spp.4,5,6,7,8, Ehrlichia spp.9, Rickettsia spp.10,11, and tick-borne encephalitis virus12,13,14. In Europe and North America, 4–60% of patients with Lyme disease (LD) were co-infected with Babesia, Anaplasma, or Rickettsia11,15,16. Evidence from mouse and human studies indicate that pathogenesis by various tick-borne associated microbes15,16,17 may cause immune dysfunction and alter, enhance the severity, or suppress the course of infection due to the increased microbial burden18,19,20,21,22. As a consequence of extensive exposure to tick-borne infections15,16,17, patients may develop a weakened immune system22,23, and present evidence of opportunistic infections such as Chlamydia spp.24,25,26,27, Coxsackievirus28, Cytomegalovirus29, Epstein-Barr virus27,29, Human parvovirus B1924, and Mycoplasma spp.30,31. In addition to tick-borne co-infections and non-tick-borne opportunistic infections, pleomorphic Borrelia persistent forms may induce distinct immune responses in patients by having different antigenic properties compared to typical spirochetes32,33,34,35. Nonetheless, current LD diagnostic tools do not include Borrelia persistent forms, tick-borne co-infections, and non-tick-borne opportunistic infections.

The two-tier guidelines36,37,38 for diagnosing LD by the Centers for Disease Control and Prevention (CDC) have been challenged due to the omission of co-infections and non-tick-borne opportunistic infections crucial for comprehensive diagnosis and treatment39,40. Emerging diagnostic solutions have demonstrated the usefulness of multiplex assays to test for LD and tick-borne co-infections41,42. However, these new technologies do not address seroprevalence of non-tick-borne opportunistic infections in patients suffering from TBD and they are limited to certain co-infections41,42. Non-tick-borne opportunistic microbes can manifest an array of symptoms24,29 concerning the heart, kidney, musculoskeletal, and the central nervous system as seen in patients with Lyme related carditis43, nephritis44, arthritis45, and neuropathy46, respectively. Therefore, Chlamydia spp., Coxsackievirus, Cytomegalovirus, Epstein-Barr virus, Human parvovirus B19, Mycoplasma spp., and other non-tick-borne opportunistic microbes play an important role in the differential diagnosis of LD24,29. As the current knowledge regarding non-tick-borne opportunistic microbes is limited to their use in differential diagnosis of LD, it is unclear if LD patients can present both tick-borne co-infections and non-tick-borne opportunistic infections simultaneously.

For the first time, we evaluate the involvement of Borrelia spirochetes, Borrelia persistent forms, tick-borne co-infections, and non-tick-borne opportunistic microbes together in patients suffering from different stages of TBD. To highlight the need for multiplex TBD assays in clinical laboratories, we utilized the Bradford Hill’s causal inference criteria47 to elucidate the likelihood and plausibility of TBD patients responding to multiple microbes rather than one microbe. The goal of this study is to advocate screening for various TBD microbes including non-tick-borne opportunistic microbes to decrease the rate of misdiagnosed or undiagnosed48 cases thereby increasing the health-related quality of life for the patients39, and ultimately influencing new treatment protocol for TBDs.

Results
Positive IgM and IgG responses by CDC defined acute, CDC late, CDC negative, PTLDS immunocompromised, and unspecific patients to 20 microbes associated with TBD (Fig. 1) were utilized to evaluate polymicrobial infections (Figs 2–4). Patient categories included CDC acute (n = 43), CDC late (n = 43), CDC negative (n = 46), PTLDS (n = 31), immunocompromised (n = 61), unspecific (n = 31), and healthy (n = 177).

Polymicrobial infections are present at all stages of tick-borne diseases.

Microbes include Borrelia burgdorferi sensu stricto, Borrelia afzelii, Borrelia garinii, Borrelia burgdorferi sensu stricto persistent form, Borrelia afzelii persistent form, Borrelia garinii persistent form, Babesia microti, Bartonella henselae, Brucella abortus, Ehrlichia chaffeensis, Rickettsia akari, Tick-borne encephalitis virus (TBEV), Chlamydia pneumoniae, Chlamydia trachomatis, Coxsackievirus A16 (CVA16), Cytomegalovirus (CMV), Epstein-Barr virus (EBV), Mycoplasma pneumoniae, Mycoplasma fermentans, and Human parvovirus B19 (HB19V).

In Fig. 2A, 51% and 65% of patients had IgM and IgG responses to more than one microbe, whereas 9% and 16% of patients had IgM and IgG responses to only one microbe, respectively. Immune responses to Borrelia persistent forms (all three species) for IgM and IgG were 5–10% higher compared to Borrelia spirochetes in all three species (Fig. 2B). Interestingly, the probability that a randomly selected patient will respond to Borrelia persistent forms rather than the Borrelia spirochetes (Fig. S2) is 80% (d = 1.2) for IgM and 68% for IgG (d = 0.7). Figure 2A and B indicated that IgM and IgG responses by patients from different stages of TBDs are not limited to only Borrelia spirochetes.

In Fig. 3 sub-inlets, more than 50% of the patients reacted to only the individual Borrelia strains suggesting that Borrelia antigens are not cross-reactive. If patients were cross-reacting among antigens, a larger percentage of the patients would be seen with the combination of all three species (Fig. S2). These results provide evidence to suggest that the inclusion of different Borrelia species and their morphologies in current LD diagnostic tools will improve its efficiency.

Discussions
The study outcome indicated that polymicrobial infections existed at all stages of TBD with IgM and IgG responses to several microbes (Fig. 2). Results presented in this study propose that infections in patients suffering from TBDs do not obey the one microbe one disease Germ Theory. Based on these results and substantial literature11,15,16,17,27,49,50,51 on polymicrobial infections in TBD patients, we examined the probability of a causal relationship between TBD patients and polymicrobial infections following Hill’s nine criteria47.

An average effect size of d = 1.5 for IgM and IgG (Fig. 4A) responses is considered very large52. According to common language effect size statistics53, d = 1.5 indicates 85% probability that a randomly selected patient will respond to Borrelia and other TBD microbes rather than to only Borrelia. Reports from countries such as Australia27, Germany49, Netherlands11, Sweden50, the United Kingdom51, the USA15,16, and others indicate that 4% to 60% of patients suffer from LD and other microbes such as Babesia microti and human granulocytic anaplasmosis (HGA). However, previous findings11,15,16,27,49,50,51 are limited to co-infections (i.e., Babesia, Bartonella, Ehrlichia, or Rickettsia species) in patients experiencing a particular stage of LD (such as Erythema migrans). In contrast, a broader spectrum of persistent, co-infections, and opportunistic infections associated with diverse stages of TBD patients have been demonstrated in this study (Fig. 2). From a clinical standpoint, the likelihood for IgM and IgG immune responses by TBD patients to the Borrelia spirochetes versus the Borrelia persistent forms, and responses to just Borrelia versus Borrelia with many other TBD microbes has been quantified for the first time (Fig. S2).

Borrelia pathogenesis could predispose individuals to polymicrobial infections because it can suppress, subvert, or modulate the host’s immune system18,19,20,21,22 to create a niche for colonization by other microbes54. Evidence in animals55 and humans11,15,16,27,49,50,51 frequently indicate co-existence of Borrelia with other TBD associated infections. Interestingly, IgM and IgG immune levels by patients to multiple forms of Borrelia resulted in immune responses to 14 other TBD microbes (Fig. 4B). In contrast, patient responses to either form of Borrelia (spirochetes or persistent forms) resulted in reactions to an average of 8 other TBD microbes (Fig. 4B). Reaction to two forms of Borrelia reflected an increase in disease severity indicating biological gradient for causation as required by Hill’s criteria47.

Multiple microbial infections in TBD patients seem plausible because ticks can carry more than eight different microbes depending on tick species and geography56,57. Moreover, Qiu and colleagues reported the presence of at least 18 bacterial genera shared among three different tick species and up to 127 bacterial genera in Ixodes persulcatus58. Interestingly, research indicates Chlamydia-like organism in Ixodes ricinus ticks and human skin59 that may explain immune responses to Chlamydia spp., seen in this study (Fig. 2). Additionally, prevalence of TBD associated co-infections such as B. abortus, E. chaffeensis, and opportunistic microbes such as C. pneumoniae, C. trachomatis, Cytomegalovirus, Epstein-Barr virus, and M. pneumoniae have been recorded in the general population of Europe and the USA (Table S2). However, true incidence of these microbes is likely to be higher considering underreporting due to asymptomatic infections and differences in diagnostic practices and surveillance systems across Europe and in the USA. More importantly, clinical evidence for multiple microbes has been reported in humans11,15,16,27,49,50,51, and livestock55 to mention the least. Our findings regarding the presence of polymicrobial infections at all stages of TBD further supports the causal relationship between TBD patients and polymicrobial infections (Fig. 2). Various microbial infections in TBD patients have been linked to the reduced health-related quality of life (HRQoL) and increased disease severity39.

An association between multiple infections and TBD patients relates well to other diseases such as periodontal, and respiratory tract diseases. Oral cavities may contain viruses and 500 different bacterial species60. Our findings demonstrate that TBD patients may suffer from multiple bacterial and viral infections (Fig. 4). In respiratory tract diseases, influenza virus can stimulate immunosuppression and predispose patients to bacterial infections causing an increase in disease severity61. Likewise, Borrelia can induce immunosuppression that may predispose patients to other microbial infections causing an increase in disease severity.

Traditionally, positive IgM immune reaction implies an acute infection, and IgG response portrays a dissemination, persistent or memory immunity due to past infections. Depending on when TBD patients seek medical advice, the level of anti-Borrelia antibodies can greatly vary as an Erythema migrans (EM) develops and may present with IgM, IgG, collective IgM/IgG, or IgA62. This study recommends both IgM and IgG in diagnosing TBD (Figs 5 and S4–S6) as unconventional antibody profiles have been portrayed in TBD patients. Presence of long-term IgM and IgG antibodies have been reported in LD patients that were tested by the CDC two-tier system. In 2001, Kalish and colleagues reported anti-Borrelia IgM or IgG persistence in patients that suffered from LD 10–20 years ago63. Similarly, Hilton and co-workers recorded persistent anti-Borrelia IgM response in 97% of late LD patients that were considered cured following an antibiotic treatment64.

Similar events of persistent IgM and IgG antibody reactions were demonstrated in patients treated for Borrelia arthritis and acrodermatitis chronica atrophicans65, chronic cutaneous borreliosis66, and Lyme neuroborreliosis67. A clear phenomenon of immune dysfunction is occurring, which might account for the disparities in LD patient’s antibody profiles and persistence. Borrelia suppresses the immune system by inhibition of antigen-induced lymphocyte proliferation18, reducing Langerhans cells by downregulation of major histocompatibility complex class II molecules on these cells19, stimulating the production of interleukin-10 and anti-inflammatory immunosuppressive cytokine20, and causing disparity in regulation and secretion of cytokines21. Other studies have demonstrated low production or subversion of specific anti-Borrelia antibodies in patients with immune deficiency status22.

In the USA alone, the economic healthcare burden for patients suffering from LD and ongoing symptoms is estimated to be $1.3 billion per year69. Additionally, 83% of all TBD diagnostic tests performed by the commercial laboratories in the USA accounted for only LD70. Globally, the commercial laboratories’ ability to diagnose LD has increased by merely 4% (weighted mean for ELISA sensitivity 62.3%) in the last 20 years71. This study provides evidence regarding polymicrobial infections in patients suffering from different stages of TBDs. Literature analyses and results from this study followed Hill’s criteria indicating a causal association between TBD patients and polymicrobial infections. Also, the study outcomes indicate that patients may not adhere to traditional IgM and IgG responses.

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**Comment**

For the first time, Garg et al. show a 85% probability for multiple infections including not only tick-borne pathogens but also opportunistic microbes such as EBV and other viruses.

I’m thankful they included Bartonella as that one is often omitted but definitely a player.  I’m also thankful for the mention of viruses as they too are in the mix.  The mention of the persister form must be recognized as well as many out there deny its existence.

Key Quote:  Our findings recognize that microbial infections in patients suffering from TBDs do not follow the one microbe, one disease Germ Theory as 65% of the TBD patients produce immune responses to various microbes.”

But there is another important point.

According to this review, 83% of all commercial tests focus only on Lyme (borrelia), despite the fact we are infected with more than one microbe.  The review also states it takes 11 different visits to 11 different doctors, utilizing 11 different tests to be properly diagnosed.  https://www.news-medical.net/news/20181101/Tick-borne-disease-is-multiple-microbial-in-nature.aspx?

This is huge.  Please spread the word.