Juan David visits from Spain!

Juan David Carbonell Bonelo is a veterinarian from Cali, Colombia, has a master’s degree in tropical parasitic diseases, and is currently a resident of the European College of Veterinary Parasitology at the Complutense University of Madrid (UCM). He is also a Ph.D. student in the department of animal health of the UCM under the supervision of professor Aranzazu Meana Mañes. His research focuses on parasitic dermatitis in horses, particularly hypersensitivity to insect bites due to Culicoides, or biting midges. Juan David elaborated on his work: “I hope to understand the ecology, biology and diversity of biting midges that affect horses in southern Spain and to carry out in vitro and in vivo clinical trials of insecticides and repellents that improve the welfare of these pruritic animals.” Juan David’s passion for parasitology stems from his desire to end human and animal suffering: “I believe I can help humans through animals, whether they are companion animals, food animals, or wildlife.”

In order to expand his parasitic and diagnostic knowledge, Juan David chose to come to the Verocai Lab! In the Verocai Lab, he was learning a variety of molecular techniques that will allow him to diagnose and reveal vector hosts for his doctoral research involving Onchocerca cervicalis: “Onchocerca cervicalis is a parasite of equids transmitted by biting midges. This parasite generates clinical signs similar to that of insect bite hypersensitivity in horses; therefore, it should be considered an important differential diagnosis upon discovery of equine dermatitis”.

Juan David also discussed further why the Verocai Lab stood out to him personally: “It impressed me the large volume of samples analyzed in the diagnostic laboratory compared to other labs I have seen. This will certainly help me apply my knowledge in daily practice when I become a European Diplomate and specialist in veterinary parasitology. Not only did they receive a large volume, but also from a wide range domestic and wild animals. I had the opportunity to analyze samples from giraffes, zebras, and even bison from different wild and zoo populations!”

Overall, we were thrilled to have Juan David come to Texas! Juan David is a great example of the type of mutual collaboration we strive to provide for students, post-docs, and/or other professionals here. We at the Verocai lab know that our scientific colleagues, both locally and internationally, are critical to unravel the mysteries of the parasitology world and we are very fortunate that we can mediate such collaborative studies here in College Station, Texas!

American Heartworm Society’s Triennial Symposium

Multiple current and former members of the Verocai Lab showed out at the American Heartworm Society’s Triennial Symposium this year! This included:

  • Dr. Guilherme Verocai
    • Temporal patterns of Dirofilaria  immitis–derived microRNA populations in serum of experimentally infected dogs in the search for novel diagnostic biomarkers
    • Probe-based qPCR as an alternative Knott’s test when screening dogs for heartworm infection in combination with antigen detection tests 
  • Dr. Caroline Sobotyk (recent resident and postdoc with Dr. Verocai; now clinical assistant professor at UPenn)
    • Detection of Dirofilaria immitis via integrated serological and molecular analyses in coyotes from Texas, USA (oral)
    • Assessing the field performance of a cell-phone based video-microscope for diagnosing heartworm infections in dogs (poster)
  • Dr. Kaitlyn Upton (veterinary student researcher with Dr. Verocai; now large animal intern at University of Tennessee)
    • Heartworm, Dirofilaria immitis, in carnivores kept in zoos located in Texas, USA: Risk perception, practices, and prevalence 
  • Dr. Meriam Saleh
    • Evaluation of urine for Dirofilaria immitis antigen detection in dogs
  • Dr. Sarah Lane (veterinary student researcher with Dr. Verocai; now veterinarian at Oak Forest Animal Hospital in Houston, TX)

You can read more about the event in the VMBS News article that was just recently published. Congratulations everyone!

A ‘cheesy’ post from our Wisconsin visitor!

Hello, my name is Kailey Wichman and I am currently a vet student at the University of Wisconsin Madison School of Veterinary Medicine. I first received my Bachelor of Dairy Science degree from the University of Wisconsin-River Falls and, as you can guess, my hope is to go into farm animal medicine. I also have a strong interest in parasitology focusing in farm animal diagnostic and treatment. Therefore, I chose to visit and spend time in the Verocai Lab where they routinely perform cattle parasite diagnostics along with a variety of other domestic and wild animals. My time with the Verocai lab was amazing! 10/10 would recommend! Everyone was friendly and helpful right away. I was taught how to perform diagnostic techniques from the moment I walked in and not only could I ask any question that I had, but they would also ask questions back which helped solidify my learning. Not only have I gained the ability and knowledge to perform parasitology diagnostics but I am confident in my ability to identify specific parasites for an appropriate treatment plan. A huge Texas thank you goes out to everyone at the Verocai Lab for making it such an amazing experience!! 

Congrats Vet Students!

As summer now officially comes to an end, we need to congratulate our veterinary students for completing the Veterinary Medical Scientist Research Training Program (VMSRTP). All three made the Verocai lab proud and we our so grateful they came to our lab to pursue and experience parasitology research. The amazing projects and students included:

Jordan Gomez – Validation of a species-specific probe-based qPCR for detection of Setaria yehi in Alaskan moose (Alces alces)
Sasha Adams – Don’t lose your head: Probe-based real-time PCR for detection of Onchocerca lupi in black flies
Cora Garcia – Direct threat assessment of African Swine Fever virus competent ticks, Ornithodoros spp. in Texas

We want to especially congratulate Cora Garcia for winning the ‘Outstanding Clinical/Translational Presentation Award’ for her talk on Ticks and African Swine Fever. Great work Cora and awesome job to all three of you!

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Don’t forget if you area veterinary student and interested in veterinary parasitology, check out the VMSRTP website and make sure to contact us!

Congrats and Good Luck Neha!

We again have to say goodbye and congratulations to another wonderful friend and colleague, Neha Tyagi. As our research associate, Neha was what we all would consider the “glue” that held our lab together at its metaphorical seams! From establishing new techniques and protocols to maintaining the daily upkeep of a busy molecular lab, Neha ensured that our lab’s research carried on unabated. In addition, her willingness to provide help and support for all was crucial to the lab’s project goals and fostered an environment of collaborative teamwork. While we are excited for her new career opportunity, we will especially miss her thoughtfulness, dedication, and her famous samosas (however, she is probably relieved she does not need to make them for all our birthdays anymore). We wish the best and hope to see you soon in the near future!

ASP 2022 & ‘Parasites on the Green’

In early July we were able to ‘travel’ to the 97th annual conference of the American Society of Parasitologists in College Station, Texas! Although only down the road from our lab, our team was exposed to new colleagues, ideas, and all kinds of strange parasites (if you don’t know about the horse hairworm, we suggest you take look!). Not only did we attend and give four oral lectures at this meeting, but we also were able to help bring parasites to the our local Texas community! “Parasites on the Green”, our parasitology-centric event at Century Square, was a resounding success of fun, games, prizes, and learning. Take a look at all the Verocai Lab experiences below!

Conference Presentations

  • Matthew Kulpa (PhD student) – MULTI-LOCUS PHYLOGENETIC RELATIONSHIPS AMONG ONCHOCERCA ISOLATES FROM NEW YORK AND CALIFORNIAN UNGULATES.
  • Kaylee Kipp (PhD student) – RETROSPECTIVE EVALUATION OF GASTROINTESTINAL NEMATODES IN COMMERCIAL NORTH AMERICAN BISON HERDS. 2017-2021 AT THE TEXAS A&M UNIVERSITY PARASITOLOGY DIAGNOSTIC LAB
  • Maureen Kelly (PhD student) – PRELIMINARY VALIDATION OF A PROBE-BASED QPCR FOR DETECTION OF ZOONOTIC ONCHOCERCA LUPI IN CLINICAL SAMPLES OF COMPANION ANIMALS
  • Hannah Danks (veterinary student) – OPENING A CAN OF (LUNG)WORMS: MOLECULAR CHARACTERIZATION OF DICTYOCAULUS (NEMATODA; DICTYOCAULIDAE) INFECTING NORTH AMERICAN BISON (BISON BISON). [Recently published here]

ASP Conference

Parasites on the Green

So Long, and Thanks for All the Worms

We now must say goodbye and congratulations to our friend/colleague, Dr. Caroline Sobotyk de Oliveira. Although we are saddened that her post-doctoral term has ended here in the Verocai Lab, we cannot express how proud we are of her accomplishments and her future endeavors she will embark upon. Dr. Sobotyk completed her DVM in 2013 at the Universidade Federal de Santa Maria (UFSM) in Brazil. She then earned both an MSc (2015) and PhD (2019) specializing in vector-borne infections, including spotted fever Rickettsia and Leishmania. After these enormous accomplishments, she made a huge leap to continue her education in a new country! Under the supervision of Dr. Guilherme Verocai, she came to Texas A&M University to complete a Merck-funded NCVP residency training in just two years. Dr. Sobotyk’s list of accomplishments in the Verocai Lab is long and wide-ranging (an exhaustive publication list is detailed below for reference). Most recently she was the recipient of the TAMU VMBS Outstanding Postdoctoral Associate Award. In addition to all her published accomplishments, Dr. Sobotyk brought enthusiastic, positive energy to all things parasitology-related in the lab and persevered during one of the more stranger times in human history (looking at you Covid). Maté tea (chimarrão) in hand (and sometimes brigadeiro, a lab favorite!), it’s hard to imagine her not racing through the lab with a cheerful grin and enviable amounts of scientific curiosity (only matched when something like the printer breaks down). Now she starts a new adventure as a Assistant Professor of Clinical Parasitology at the University of Pennsylvania School of Veterinary Medicine. She will be greatly missed, but we are so proud of all she has done here in the Verocai Lab and look forward to her bright parasitology future!

With that said, we all wish you the best of luck at UPenn!!!! (Go Quakers?)

Publications in the Verocai Lab

  • Danks HA, Sobotyk C, N Saleh M, Kulpa M, L Luksovsky J, C Jones L, Verocai GG. Opening a can of lungworms: Molecular characterization of Dictyocaulus (Nematoda: Dictyocaulidae) infecting North American bison (Bison bison). Int J Parasitol Parasites Wildl. 2022 Apr 30;18:128-134. doi: 10.1016/j.ijppaw.2022.04.011. PMID: 35572037; PMCID: PMC9096256.
  • Sobotyk C, Nguyen N, Negrón V, Varner A, Saleh MN, Hilton C, Tomeček JM, Esteve-Gasent MD, Verocai GG. Detection of Dirofilaria immitis via integrated serological and molecular analyses in coyotes from Texas, United States. Int J Parasitol Parasites Wildl. 2022 Apr 2;18:20-24. doi: 10.1016/j.ijppaw.2022.03.012. PMID: 35399590; PMCID: PMC8987650.
  • Wallitsch K, Jaffey JA, Ferguson S, Verocai GG, Sobotyk C, van Eerde E, Bashaw S. Extensive Aberrant Migration of Onchocerca lupi in a Dog. Top Companion Anim Med. 2022 Jul-Aug;49:100666. doi: 10.1016/j.tcam.2022.100666. Epub 2022 Apr 10. PMID: 35417784.
  • Upton KE, Sobotyk C, Edwards EE, Verocai GG. Dirofilaria immitis in an Asian small-clawed otter (Aonyx cinereus) from southeastern Louisiana, United States. Vet Parasitol Reg Stud Reports. 2022 Apr;29:100703. doi: 10.1016/j.vprsr.2022.100703. Epub 2022 Feb 10. PMID: 35256129.
  • Zárate-Rendón DA, Salazar-Espinoza MN, Catalano S, Sobotyk C, Mendoza AP, Rosenbaum M, Verocai G. Molecular characterization of Dipetalonema yatesi from the black-faced spider monkey (Ateles chamek) with phylogenetic inference of relationships among Dipetalonema of Neotropical primates. Int J Parasitol Parasites Wildl. 2022 Jan 13;17:152-157. doi: 10.1016/j.ijppaw.2022.01.005. PMID: 35096523; PMCID: PMC8783072.
  • Hasse KE, Garner MM, Knightly FA, Sobotyk C, Luksovsky JL, Verocai GG. FATAL FASCIOLOIDES MAGNA IN A LESSER SPOT-NOSED GUENON (CERCOPITHECUS PETAURISTA). J Zoo Wildl Med. 2021 Dec;52(4):1309-1313. doi: 10.1638/2020-0226. PMID: 34998304.
  • Park JY, Sobotyk C, Edwards EE, Porter BF, Verocai GG. Fatal cerebral cuterebrosis in a dog. Vet Parasitol Reg Stud Reports. 2021 Dec;26:100636. doi: 10.1016/j.vprsr.2021.100636. Epub 2021 Sep 11. PMID: 34879948.
  • Febronio AMB, Boos GS, Batista RLG, Amorim DB, Guimarães JP, Bianchi MV, Mariani DB, Koproski L, Mari C, Parente JEV, Sonne L, Werneck MR, Marques SMT, Driemeier D, Kolesnikovas CKM, Groch KR, Sobotyk C, Verocai GG, Groch KR, Díaz-Delgado J. Crassicaudiasis in three geographically and chronologically distant Cuvier’s beaked whales (Ziphius cavirostris) stranded off Brazil. Int J Parasitol Parasites Wildl. 2021 Nov 6;16:262-269. doi: 10.1016/j.ijppaw.2021.10.010. PMID: 34824971; PMCID: PMC8605309.
  • Díaz-Delgado J, Cruz D, Sobotyk C, Hensley T, Anguiano M, Verocai GG, Gomez G. Pathologic features and molecular identification of parelaphostrongylosis in a sitatunga (Tragelaphus spekii). J Vet Med Sci. 2021 Sep 27;83(9):1476-1480. doi: 10.1292/jvms.21-0282. Epub 2021 Jul 31. PMID: 34334513; PMCID: PMC8498824.
  • Sobotyk C, Upton KE, Lejeune M, Nolan TJ, Marsh AE, Herrin BH, Borst MM, Piccione J, Zajac AM, Camp LE, Pulaski CN, Starkey LA, von Simson C, Verocai GG. Retrospective study of canine endoparasites diagnosed by fecal flotation methods analyzed across veterinary parasitology diagnostic laboratories, United States, 2018. Parasit Vectors. 2021 Aug 31;14(1):439. doi: 10.1186/s13071-021-04960-7. PMID: 34465379; PMCID: PMC8406898.
  • Verocai GG, Sobotyk C, Lamison A, Borst MM, Edwards EE. Autochthonous, zoonotic Onchocerca lupi in a South Texas dog, United States. Parasit Vectors. 2021 Apr 15;14(1):203. doi: 10.1186/s13071-021-04707-4. PMID: 33858497; PMCID: PMC8048269.
  • Sobotyk C, Foster T, Callahan RT, McLean NJ, Verocai GG. Zoonotic Thelazia californiensis in dogs from New Mexico, USA, and a review of North American cases in animals and humans. Vet Parasitol Reg Stud Reports. 2021 Apr;24:100553. doi: 10.1016/j.vprsr.2021.100553. Epub 2021 Mar 13. PMID: 34024370.
  • Sobotyk C, Savadelis MD, Verocai GG. Detection and cross-reaction of Dirofilaria repens using a commercial heartworm antigen test kit. Vet Parasitol. 2021 Jan;289:109302. doi: 10.1016/j.vetpar.2020.109302. Epub 2020 Dec 10. PMID: 33352522.
  • Sobotyk de Oliveira C, Savadelis MD, McLean NJ,Verocai GG. Assessing the potential cross-reactivity using a commercial heartworm ELISA kits of serum from dogs naturally infected with Onchocerca lupi. Veterinary Parasitology 280 (2020): 109070.

AAVP Meeting 2022

This June we were able to travel to the 67th annual American Association of Veterinary Parasitologists in lovely Snowbird, Utah! This once in a lifetime trip exposed us to new exciting parasitology work, new colleagues/friends, and not to mention – mountains! This year’s AAVP conference was ultimately a special one for the Verocai lab. Overall, the lab presented five(!) oral lectures and two poster talks. This was, by far, the largest presence Verocai lab has had at AAVP and we look forward to meeting this goal every year. Lab contributors at this year’s conference included:

  • Caroline de Sobotyk (post-doc) – Characterizing circulating Onchocerca lupi-derived microRNA in naturally infected dogs and assessing their potential as diagnostic markers
  • Matthew Kulpa (PhD student) – A cryptic Onchocerca species in moose from southern Alaska
  • Kaylee Kipp (PhD student) – Retrospective evaluation of gastrointestinal nematodes in commercial North American bison herds: 2017-2021 at the Texas A&M University Parasitology Diagnostic Lab
  • Maureen Kelly (PhD student) – Preliminary validation of a probe-based qPCR for detection of zoonotic Onchocerca lupi in clinical samples of companion animals
  • Hannah Danks (veterinary student) – Molecular characterization of Dictyocaulus (Nematoda; Dictyocaulidae) infecting North American bison (bison bison)
  • Tiana Sanders (former veterinary extern from Oklahoma State University) – Natural infection of Trichinella sp. in a domestic cat from Oklahoma
  • Ilana Mosley (Rotating PhD student) – Dirofilaria immitis prevalence in shelter cats in south Texas

In addition, congrats to Tiana Sanders on her 2nd place finish in the poster contest and Carol de Sobotyk for her last presentation as part of the Verocai Lab!! We are very proud of both you and the entire lab for making our group what it is today!

Congrats Kaylee!

This weekend, Kaylee delivered a wonderful presentation on the ongoing bison parasitology work being done in the Verocai lab at the Texas Bison Association Conference. Not only are we very proud of her, but we are so grateful for having the opportunity to collaborate with such an important industry in the Texas area. Way to go!

Congratulations Dr. Verocai!

This year, Dr. Verocai was officially named to the National Center of Veterinary Parasitology Board! Serving on this committee is a great honor and we are very proud that he was nominated for this prestigious parasitology position. Way to go Gui and good luck!