Lucjan Witkowski

ORCID: 0000-0003-1069-3384
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About
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Research Areas
  • Animal Disease Management and Epidemiology
  • Infectious Disease Case Reports and Treatments
  • Veterinary Equine Medical Research
  • Herpesvirus Infections and Treatments
  • Virus-based gene therapy research
  • Mycobacterium research and diagnosis
  • Animal health and immunology
  • Microbial infections and disease research
  • Vector-Borne Animal Diseases
  • Veterinary medicine and infectious diseases
  • Exercise and Physiological Responses
  • T-cell and Retrovirus Studies
  • Infections and bacterial resistance
  • Diphtheria, Corynebacterium, and Tetanus
  • Streptococcal Infections and Treatments
  • Biliary and Gastrointestinal Fistulas
  • Reproductive Physiology in Livestock
  • Viral gastroenteritis research and epidemiology
  • Animal Virus Infections Studies
  • Viral Infections and Vectors
  • Tuberculosis Research and Epidemiology
  • Viral Infections and Immunology Research
  • Toxoplasma gondii Research Studies
  • Respiratory viral infections research
  • Urinary and Genital Oncology Studies

Warsaw University of Life Sciences
2016-2025

Polish Academy of Sciences
2017

Wrocław University of Environmental and Life Sciences
2017

Wojskowy Instytut Higieny i Epidemiologii
2010

Pennsylvania State University
1989

The equine disease strangles, which is characterized by the formation of abscesses in lymph nodes head and neck, one most frequently diagnosed infectious diseases horses around world. causal agent, Streptococcus equi subspecies equi, establishes a persistent infection approximately 10 % animals that recover from acute disease. Such 'carrier' appear healthy are rarely identified during routine veterinary examinations pre-purchase or transit, but can transmit S. to naïve initiating new...

10.1099/mgen.0.000528 article EN cc-by Microbial Genomics 2021-03-01

Changes in serum levels of acute phase proteins (APPs) reflect the reaction, a rapid and nonspecific response to any tissue damage. Serum amyloid A (SAA) is main APP horses, which increases various diseases, surgical injuries after long distance endurance rides; however, this parameter has not been investigated as an indicator subclinical disorders, may result elimination during competitions.To evaluate concentration SAA potential for status horses prepared rides (120 160 km).Twenty Arabian...

10.1111/j.2042-3306.2010.00280.x article EN Equine Veterinary Journal 2010-11-01

Serum amyloid A (SAA) is the major acute phase protein in horses. Its concentration increases various pathologies but also response to prolonged, strenuous effort. The purpose of this study was establish whether routine race and endurance training produces changes SAA level Arabian Additionally, differences between experienced horses that were beginning their career investigated. There no concentrations after In training, exercise produced an increase as compared with rest level. Arabians,...

10.1186/1746-6148-9-91 article EN cc-by BMC Veterinary Research 2013-01-01

Little is known about the prevalence of Toxoplasma gondii in wild life, particularly game animals Poland. Meat juice collected during 2009/2010 and 2010/2011 hunting seasons from 552 red deer (Cervus elaphus), 367 boars (Sus scrofa) 92 roe (Capreolus capreolus) was tested for T. antibodies using multi-species ID Screen Toxoplasmosis Indirect kit (IDvet, Montpellier, France). Antibodies to were detected 24.1% (95% CI: 20.7%, 27.8%), 37.6% boar 32.8%, 42.7%) 30.4% 22.0%, 40.5%). To authors'...

10.1051/parasite/2015017 article EN cc-by Parasite 2015-01-01

Rhodococcus equi is an important etiologic agent of respiratory- and non-respiratory tract infections, diseases animals humans. Therapy includes the use various group chemotherapeutic agents, however resistance acquirement quite common. To date there no preferred treatment protocol for infections caused by isolates resistant to macrolides rifampicin. The a result many molecular mechanisms, some which include alterations in cell envelope composition structure, activity efflux pumps, enzymatic...

10.18388/abp.2014_1824 article EN cc-by Acta Biochimica Polonica 2014-11-04

Rhodococcus equi is an emerging zoonotic presumably foodborne pathogen. Since the data on worldwide prevalence of R. in meat animals are scarce, present study aimed to investigate molecular epidemiology swine, cattle and horse carcasses intended for human consumption Poland. Totally 1028 lymph node samples were examined. was isolated from 26.6 % (105/395) swine 1.3 (3/234) bovine healthy submaxillary nodes. In horses, only 0.5 (1/198) middle tracheo-branchiales while no lymphocentrum...

10.1186/s12866-016-0712-9 article EN cc-by BMC Microbiology 2016-05-27

Abstract Diagnostic performance of ID Screen ® MVV-CAEV Indirect Screening ELISA in identifying goats infected with small ruminant lentiviruses (SRLV) was evaluated. In total 299 serum samples from the collection Laboratory Veterinary Epidemiology and Economics - 109 truly positive 190 negative were used. To be enrolled study a sample had to come at least 2 year-old goat which reacted identically two serological surveys preceding kept herd stable status confirmed twice during 5 years....

10.2478/pjvs-2014-0072 article EN Polish Journal of Veterinary Sciences 2014-09-01

<title>Abstract</title> <italic>Corynebacterium pseudotuberculosis</italic> causes caseous lymphadenitis (CLA) in goats and sheep. This study assessed oral fluid (OF) as a minimally invasive sample for CLA serodiagnosis by detecting antibodies to PLD, CP40, PknG using Western blot (WB). Ninety-six from CLA-affected herd Poland were tested. Paired serum OF samples analyzed via ELISA (serum only) WB OF). The rPLD-ELISA had 70–80% diagnostic sensitivity, depending on the cut-off. showed high...

10.21203/rs.3.rs-6065536/v1 preprint EN cc-by Research Square (Research Square) 2025-03-17

Rhodococcus equi is now considered an emerging zoonotic pathogen. Sources and routes of human infection remain unclear but foodborne transmission seems to be the most probable way. Strains pig or bovine type are often isolated from cases moreover R. present in submaxillary lymph nodes apparently healthy pigs wild boars intended for consumption. The aim this study was estimate prevalence boars, roe deer red deer. Samples were collected 936 animals 27 strains isolated, 5.1 % (23/452), 0.7...

10.1186/s12866-015-0445-1 article EN cc-by BMC Microbiology 2015-05-21

Abstract Background: Hucul horses are the unique, genetically distinct breed of Carpathian Mountains. Even though they recognized as primitive breed, many morphological differences between them and other have been reported. Neither hematological nor blood biochemical studies in this conducted so far. Objectives: The aim study was to establish reference intervals for basic selected variables compare with breeds. Material Methods: Blood samples were collected from 168 analyses performed using...

10.1515/pjvs-2015-0056 article EN Polish Journal of Veterinary Sciences 2015-06-01

The diagnosis of bovine tuberculosis (BTB) in living wildlife remains a complex problem, and one particular importance endangered species like European bison (Bison bonasus). To identify infection avoid the unnecessary culling such valuable individuals, current best practice requires collection culture material from animals, as mycobacteria isolation gold standard BTB diagnosis. However, is challenging due to need for immobilization appropriate clinical material, because sporadic shedding...

10.3390/ani10112017 article EN cc-by Animals 2020-11-02

Epidemiological studies on caseous lymphadenitis were carried out in Poland 1996 and 2002 among goat herds covered by a milk recording program.Between-herd seroprevalence was 13.2% increased to 62.5% 2002.The average size of seropositive statistically significantly higher than that seronegative ones, however there no significant difference the age between herds.A prevalence ratio (PR) identified relevant attributable risk for exposed animals (AR exp ) calculated following factors: presence...

10.2478/v10181-011-0035-6 article EN Polish Journal of Veterinary Sciences 2011-01-01

Background Current screening tests for Rhodococcus equi pneumonia in foals lack adequate accuracy clinical use. Real‐time, quantitative PCR ( qPCR ) virulent R. feces has not been systematically evaluated as a test. Objective The objective of this study was to evaluate the vapA serially collected fecal samples test foals. Animals One hundred and twenty‐five born 2011 at ranch Texas. Methods Fecal were concurrently with thoracic ultrasonography TUS examinations ages 3, 5, 7 weeks. Affected...

10.1111/jvim.13828 article EN cc-by-nc Journal of Veterinary Internal Medicine 2016-01-24

Chronic interstitial pneumonia (CIP) is a main pathology of sheep infected with small ruminant lentivirus (SRLV). Caprine arthritis-encephalitis (CAE) caused by the same pathogen; however, presence CIP has been only occasionally reported in SRLV-infected goats. We carried out cross-sectional study to determine prevalence histopathological lesions indicative goats symptomatic CAE, and investigate whether was associated higher other types (purulent bronchopneumonia, fibrinous pleuropneumonia)...

10.3390/pathogens11060629 article EN cc-by Pathogens 2022-05-30

A large-scale study was carried out in the Polish goat population 2014-2021 to determine herd-level true seroprevalence (HTP) of caseous lymphadenitis (CLA) caused by Corynebacterium pseudotuberculosis (Cp) and paratuberculosis (PTB) Mycobacterium avium ssp. (Map). Two-stage cluster sampling applied herds counting at least 20 adult goats (aged >1 year) each herd all males 10-13 females were tested. At one seropositive regardless its sex necessary consider as infected. HTP estimated using...

10.1016/j.prevetmed.2024.106278 article EN cc-by-nc Preventive Veterinary Medicine 2024-07-05
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