Archive for the ‘Bartonella’ Category

One Health Trio: Dr. Breitschwerdt’s Three Publications About Vector-borne Pathogens and His Family

https://www.galaxydx.com/dr_breitschwerdt_family_publications_about_vector_borne_pathogens/

One Health Trio: Dr. Breitschwerdt’s Three Publications about Vector-borne Pathogens and His Family

 

 

Bartonella & Bones

https://www.galaxydx.com/bartonella-and-bones/

Bartonella and Bones

Tick Paralysis in a Free-ranging Bobcat

https://avmajournals.avma.org/doi/abs/10.2460/javma.256.3.362?journalCode=javma

Abstract
February 1, 2020, Vol. 256, No. 3, Pages 362-364

Tick paralysis in a free-ranging bobcat (Lynx rufus)

Meredith E. Persky DVM1; Yousuf S. Jafarey DVM1; Sarah E. Christoff​‌1; Dewey D. Maddox​‌1; Stephanie A. Stowell​‌2 and Terry M. Norton DVM23
1Department of Animal Health, Jacksonville Zoo and Gardens, 370 Zoo Pkwy, Jacksonville, FL 32218. (); 2Georgia Sea Turtle Center, 214 Stable Rd, Jekyll Island, GA 31527. (); 3Jekyll Island Authority, 100 James Rd, Jekyll Island, GA 31527. ()
Address correspondence to Dr. Persky ().

 

CASE DESCRIPTION

A free-ranging male bobcat (Lynx rufus) was evaluated because of signs of pelvic limb paralysis.

 

CLINICAL FINDINGS

Physical examination of the anesthetized animal revealed tick infestation, normal mentation, and a lack of evidence of traumatic injuries. Radiography revealed no clinically relevant abnormalities. Hematologic analysis results were generally unremarkable, and serologic tests for exposure to feline coronavirus, FeLV, FIV, and Toxoplasma gondii were negative. Results of PCR assays for flea- and common tick-borne organisms other than Bartonella clarridgeiae were negative.

 

TREATMENT AND OUTCOME

Ticks were manually removed, and the patient received supportive care and fipronil treatment. The bobcat made a full recovery within 72 hours after treatment for ticks, and a presumptive diagnosis of tick paralysis was made. Identified tick species included Dermacenter variabilis, Amblyomma americanum, and Ixodes scapularis.

 

CLINICAL RELEVANCE

To the authors’ knowledge, tick paralysis has not previously been reported in felids outside Australia. This disease should be considered a differential diagnosis in felids, including exotic cats, with signs of neuromuscular disease of unknown etiopathogenesis.

 

 

 

Molecular Prevalence of Bartonella, Babesia, and Hemotropic Mycoplasma Species in Dogs With Hemangiosarcoma from Across the United States

https://www.ncbi.nlm.nih.gov/pubmed/31923195/

2020 Jan 10;15(1):e0227234. doi: 10.1371/journal.pone.0227234. eCollection 2020.

Molecular prevalence of Bartonella, Babesia, and hemotropic Mycoplasma species in dogs with hemangiosarcoma from across the United States.

Abstract

Hemangiosarcoma (HSA), a locally invasive and highly metastatic endothelial cell neoplasm, accounts for two-thirds of all cardiac and splenic neoplasms in dogs. Bartonella spp. infection has been reported in association with neoplastic and non-neoplastic vasoproliferative lesions in animals and humans. The objective of this study was to determine the prevalence of Bartonella spp. in conjunction with two other hemotropic pathogens, Babesia spp. and hemotropic Mycoplasma spp., in tissues and blood samples from 110 dogs with histopathologically diagnosed HSA from throughout the United States. This was a retrospective, observational study using clinical specimens from 110 dogs with HSA banked by the biospecimen repository of the Canine Comparative Oncology and Genomics Consortium. Samples provided for this study from each dog included: fresh frozen HSA tumor tissue (available from n = 100 of the 110 dogs), fresh frozen non-tumor tissue (n = 104), and whole blood and serum samples (n = 108 and 107 respectively). Blood and tissues were tested by qPCR for Bartonella, hemotropic Mycoplasma, and Babesia spp. DNA; serum was tested for Bartonella spp. antibodies.

  • Bartonella spp. DNA was amplified and sequenced from 73% of dogs with HSA (80/110)
  • hemotropic Mycoplasma spp. DNA was amplified from a significantly smaller proportion (5%, p<0.0001)
  • Babesia spp. DNA was not amplified from any dog

Of the 100 HSA tumor samples submitted,

  • 34% were Bartonella PCR positive (32% of splenic tumors, 57% of cardiac tumors, and 17% of other tumor locations)
  • Of 104 non-tumor tissues, 63% were Bartonella PCR positive (56% of spleen samples, 93% of cardiac samples, and 63% of skin/subcutaneous samples).
  • Of dogs with Bartonella positive HSA tumor, 76% were also positive in non-tumor tissue.
  • Bartonella spp. DNA was not PCR amplified from whole blood.

This study documented a high prevalence of Bartonella spp. DNA in dogs with HSA from geographically diverse regions of the United States. While 73% of all tissue samples from these dogs were PCR positive for Bartonella DNA, none of the blood samples were, indicating that

whole blood samples do not reflect tissue presence of this pathogen.

Future studies are needed to further investigate the role of Bartonella spp. in the development of HSA.

_________________

**Comment**

And here, we see exactly what patience experience in reality: negative blood tests but positive tissue samples.  Dr. Ericson has found Bartonella in tissues directly by where a PICC line was removed:  https://madisonarealymesupportgroup.com/2019/02/27/advanced-imaging-found-bartonella-around-pic-line/

This is true not only for Bartonella but for Lyme as well as all of the coinfections.  Doctors that rely only on testing are missing patients right and left.

Please spread the word.

 

Infectious Keratitis Caused by Rare and Emerging Micro-Organisms

https://www.ncbi.nlm.nih.gov/pubmed/31870176

2019 Dec 23. doi: 10.1080/02713683.2019.1708407. [Epub ahead of print]

Infectious Keratitis Caused by Rare and Emerging Micro-Organisms.

Abstract

Purpose:  To provide a comprehensive review on rare and emerging micro-organisms causing infectious keratitis.

Material and Methods:  A literature search was performed using PubMed Medline, Cochrane Library Database, EMBASE and Scopus (1960 onwards), using the terms: keratitis caused by rare pathogens; mycotic keratitis; fungal keratitis; bacterial keratitis; infectious keratitis; infective keratitis; atypical fungal keratitis; fungal keratitis caused by rare organisms; fungal keratitis caused by rare ocular pathogen; atypical bacterial keratitis; bacterial keratitis caused by rare organisms; bacterial keratitis caused by rare ocular pathogen. All relevant articles were included in this review.

Results:  A total of 1232 articles matched our search strategy of which 124 articles were included in this mini-review. The rare and emerging bacteria causing keratitis include atypical mycobacteria, Nocardia spp., Chrysebacterium spp., Delftia acidovorans, Kocuria spp., Enterococcus spp., Bartonella henslae, Achromobacter spp. and others. The rare and emerging fungi causing keratitis include Pythium spp., Alternaria spp., Acremonium spp., Cladosporium spp., Curvularia spp., Bipolaris spp., Microsporidia spp., Pseudallescheria spp., Colletotrichum spp., and others. The clinical presentation of these cases is variable. While a few organisms produce characteristic clinical features, rest present similar to bacterial or fungal keratitis with variable response to routine treatment. A strong degree of suspicion is therefore essential for its diagnosis. Special investigations like polymerase chain reaction, gene sequencing, mass spectroscopy and enzyme-linked immunosorbent assay are required for accurate identification of these organisms. Culture-sensitivity is extremely useful as drug resistance to routinely used anti-microbial drugs is common. Prognosis is usually poor for keratitis with Pythium spp., Pseudallescheria spp., Arthrographis spp., Purpureocillium spp., Kociria spp. and Achromobacter spp.

Conclusion:  Keratitis caused by rare and emerging micro-organisms must be suspected in cases where the infection runs an unusual course or shows poor response to standard anti-microbial drugs. Early diagnosis and timely treatment hold the key for good outcome.

________________

**Comment**

Keratitis is inflammation in the cornea.  The following symptoms were found here:  https://www.mayoclinic.org/diseases-conditions/keratitis/symptoms-causes/syc-20374110

Symptoms

Signs and symptoms of keratitis include:

  • Eye redness
  • Eye pain
  • Excess tears or other discharge from your eye
  • Difficulty opening your eyelid because of pain or irritation
  • Blurred vision
  • Decreased vision
  • Sensitivity to light (photophobia)
  • A feeling that something is in your eye

Great read on Lyme disease also causing keratitis:  https://lymediseaseguide.net/is-lyme-disease-affecting-your-sight-ophthalmological-symptoms-of-lyme-disease-part-one

And here we see Bartonella affecting cats with keratitis as well as conjunctivitis, uveitis, blepharitis, and chorioretinitis:  https://www.northwestanimaleye.com/bartonella-infection.pml

For more:  https://madisonarealymesupportgroup.com/2017/05/20/bartonella-endocarditis-opportunistic-infection-in-cancer-patients-and-eye-inflammation/

https://madisonarealymesupportgroup.com/2017/04/06/ocular-bartonellosis/

https://madisonarealymesupportgroup.com/2019/11/27/development-spontaneous-resolution-of-a-full-thickness-macular-hole-in-bartonella-neuroretinitis/

https://madisonarealymesupportgroup.com/2019/09/07/keep-an-eye-out-for-bartonella/

https://madisonarealymesupportgroup.com/2019/04/08/case-series-bartonella-ocular-manifestations/