scholarly journals Antibodies against Bovine herpesvirus 1 in dairy herds in the state of Espirito Santo, Brasil

Revista CERES ◽  
2014 ◽  
Vol 61 (2) ◽  
pp. 280-283 ◽  
Author(s):  
Marcus Rebouças Santos ◽  
Hanna Carolina Campos Ferreira ◽  
Marcos Antônio dos Santos ◽  
Giuliana Loreto Saraiva ◽  
Natália Filardi Tafuri ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Neutralizing Antibodies ◽  
Bovine Herpesvirus ◽  
The State ◽  
Serum Samples ◽  
Bovine Herpesvirus 1 ◽  
Espírito Santo ◽  
Herpesvirus 1 ◽  
Cattle Herds ◽  
Espirito Santo

Bovine herpesvirus 1 (BoHV-1) causes major losses in worldwide livestock, affecting the respiratory and reproductive tracts of bovine. In the past decades, the number of cases in Brazil has been gradually increasing. Therefore, it is important to assess the distribution of infection in different regions of the country. In the state of Espírito Santo (ES) the BoHV 1 infection rate in dairy cattle herds is unknown. Thus, the aim of this study was to detect neutralizing antibodies against BoHV-1 in serum samples from 1,161 non-vaccinated cows from 59 dairy cattle herds in 23 municipalities of the Metropolitan, North, Northwest and South macro-regions. The identification of seropositive cows was evaluated by the virus neutralization test. The results showed that of all serum samples evaluated 775 (66.75%) had neutralizing antibodies against BoHV-1. Moreover, all herds were found positive; however, the percentage of positive cows varied among regions; 49.06%, 62.15%, 67.21% and 80.04% for the Metropolitan, South, North and Northwest macro-regions, respectively. In this study, the results clearly indicate the dissemination of the viral agent in dairy cattle in the ES state, requiring the monitoring and control of diseases related to BoHV-1 infection.

scholarly journals PREVALENCE OF BOVINE HERPESVIRUS 1 (BHV-1) INFECTION IN HUNGARIAN CATTLE HERDS

1999 ◽  
Vol 47 (3) ◽  
pp. 303-309 ◽  
Author(s):  
L. Tekes ◽  
B. Markos ◽  
J. Méhesfalvi ◽  
Zsuzsanna Máté ◽  
E. Kudron ◽  
...  
Keyword(s):  
Large Scale ◽  
Close Contact ◽  
Bovine Herpesvirus ◽  
Small Scale ◽  
Serum Samples ◽  
Bovine Herpesvirus 1 ◽  
Holstein Friesian ◽  
Herpesvirus 1 ◽  
Cattle Herds ◽  
Large Farms

Hungarian cattle herds were surveyed for bovine herpesvirus 1 (BHV-1) infection by ELISA of milk and serum samples. In 1993, 75% of the large cattle herds (consisting of more than 50 cattle) and all small herds (small-scale producers' stocks), while in 1997 90% of the small herds were included in the survey. In the case of large herds, 79.3% of the herds and 64.1% of the samples tested were found to be positive. Of the small herds, 13.5% and 15.7% tested positive in 1993 and 1997, respectively. The majority of large herds were Holstein-Friesian dairy stocks. Small herds with an infection rate markedly exceeding the average were found in those counties where the small herds had been in close contact with the large-scale farms, or where new herds were established by using animals of uncontrolled infectious bovine rhinotracheitis (IBR) status originating from large farms. Attention is called to the importance of maintaining the IBR-free status of small herds that constitute one-third of the Hungarian cattle population.

Seroprevalence and Risk Factors of Bovine Herpesvirus 1 Infection in Cattle Herds in the State of Paraná, Brazil

2012 ◽  
Vol 60 (1) ◽  
pp. 39-47 ◽  
Author(s):  
J. A. Dias ◽  
A. A. Alfieri ◽  
J. S. Ferreira-Neto ◽  
V. S. P. Gonçalves ◽  
E. E. Muller
Keyword(s):  
Risk Factors ◽  
Bovine Herpesvirus ◽  
The State ◽  
Bovine Herpesvirus 1 ◽  
Herpesvirus 1 ◽  
Cattle Herds

scholarly journals Neutralizing Antibodies to Bovine Herpesvirus 1 in Reindeer

1982 ◽  
Vol 23 (4) ◽  
pp. 565-569
Author(s):  
C. Ek-Kommonen ◽  
P. Veijalainen ◽  
M. Rantala ◽  
E. Neuvonen
Keyword(s):  
Neutralizing Antibodies ◽  
Bovine Herpesvirus ◽  
Bovine Herpesvirus 1 ◽  
Herpesvirus 1

scholarly journals Detection of Bovine Herpesvirus-1-Specific IgM Using a Capture Enzyme Immune Assay with Isotype-Specific Monoclonal Antibodies

1989 ◽  
Vol 1 (2) ◽  
pp. 139-145 ◽  
Author(s):  
Fernando Osorio ◽  
Subramaniam Srikumaran ◽  
Marvin Rhodes ◽  
David Christensen ◽  
Pushpa Srikumaran
Keyword(s):  
Monoclonal Antibodies ◽  
Solid Phase ◽  
Bovine Herpesvirus ◽  
Immunoglobulin M ◽  
Viral Reactivation ◽  
Clinical Samples ◽  
Serum Samples ◽  
Bovine Herpesvirus 1 ◽  
Igm Antibody ◽  
Herpesvirus 1

The detection of virus-specific immunoglobulin M (IgM) antibodies in acute-phase serum samples offers the possibility of making an accurate and rapid serologic diagnosis. We have developed a solid-phase capture assay that uses murine monoclonal antibodies specific for bovine IgM to separate the whole IgM fraction of a bovine serum sample. The IgM specific for bovine herpesvirus-1 (BHV-1) is then detected by the addition of viral antigen, which in turn is detected by BHV-1-specific monoclonal antibodies conjugated to horseradish peroxidase. A BHV-1 IgM antibody response was detected during the early postinfection period (7–40 days PI). Bovine herpesvirus-1 IgM antibody was not detected in sera taken from 3 animals following dexamethasone-induced viral reactivation. This method compares favorably with viral isolation, antigen detection in the clinical samples, and paired serology in the diagnosis of BHV-1 infection at a herd level.

Sero-prevalence and Risk Factor Analysis of BoHV-1 in Bovines in Haryana State of India

2020 ◽  
Author(s):  
Aman Kumar ◽  
Suman Chaudhary ◽  
C. S. Patil ◽  
Yogesh Banger ◽  
Vipin Khasa ◽  
...  
Keyword(s):  
Risk Factor ◽  
The State ◽  
Serum Samples ◽  
Cross Sectional ◽  
Bovine Herpesvirus 1 ◽  
Apparent Prevalence ◽  
Eastern Zone ◽  
The Status ◽  
Herpesvirus 1 ◽  
Clinical Conditions

Background: Bovine herpesvirus-1 (BoHV-1) is an important pathogen of cattle and buffaloes associated with various clinical conditions including infectious bovine rhinotracheitis (IBR) and abortion. To know the status of BoHV-1, a cross-sectional serological study was conducted with the objectives of estimating the apparent prevalence of BoHV-1 and potential risk factor among unorganized cattle and buffalo herds. Method: A total of 490 serum samples were collected from cattle and buffaloes from all twenty two (22) districts of Haryana from unorganised herd randomly and tested for antibodies against BoHV-1 using ELISA. Result: The overall percent sero-prevalence of BoHV-1 was observed as 48.78% however the species wise sero-prevalence was 37.77% in cattle and 62.27% in buffaloes. The overall sero-prevalence was significantly (p less than 0.05) associated with species, zone and age of animals. The likelihood of BoHV-1 was significantly higher (2.72 times) in buffaloes (Odds ratio (OR) =2.72, 95% Confidence Interval (CI):1.86; 3.98) than in cattle (OR=1). Eastern zone of the state showed higher (1.52 times, 95% CI: 1.03, 2.26) likelihood of BoHV-1 as compared to western zone (OR=1.00).The aged animals with age³6.5 years (2.96 times), followed by 2.5-4.5 years (2.44 times) and 4.5-6.5 years (1.68 times) showed higher likelihood than younger animals (Age less than 2.5 years). Further, it can be concluded that BoHV1 is circulating among livestock population in the state.

scholarly journals Efficacy of a Deletion Mutant Bovine Herpesvirus-1 (BHV-1) Vaccine That Allows Serologic Differentiation of Vaccinated from Naturally Infected Animals

1993 ◽  
Vol 5 (4) ◽  
pp. 534-540 ◽  
Author(s):  
Eduardo Furtado Flores ◽  
Fernando A. Osorio ◽  
Eraldo L. Zanella ◽  
Saul Kit ◽  
Malon Kit
Keyword(s):  
Neutralizing Antibodies ◽  
Bovine Herpesvirus ◽  
Enzyme Linked Immunosorbent Assay ◽  
Serologic Test ◽  
Bovine Herpesvirus 1 ◽  
Virus Challenge ◽  
Double Deletion ◽  
Herpesvirus 1 ◽  
Systemic Symptoms ◽  
Loss Of Appetite

Fifteen bovine herpesvirus-1 (BHV-1)-negative calves were vaccinated intramuscularly with 107.4 plaque-forming units of a double-deletion BHV-1 mutant (IBRV(NG)dltkdlgIII), and 6 remained as nonvaccinated controls. Thirty days after vaccination, the animals were challenged by nasal instillation of 108.2 CCID50 of a virulent BHV-1 strain (Cooper). The vaccinated calves were protected against wildtype virus challenge as demonstrated by clinical evaluation. Most of the vaccinates developed only a mild rhinitis (lasting an average of 6.5 days) with almost no systemic symptoms, whereas the controls developed a serious illness characterized by rhinitis (X = 11.5 days), conjunctivitis, hyperthermia, apathy, loss of appetite, and dyspnea. The vaccinates also shed significantly less virus and for a shorter period of time (X = 5.5 days) than the controls (X = 9 days). Thirty days after vaccination, the vaccinates were negative in an anti-gIII specific blocking enzyme-linked immunosorbent assay (ELISA), despite the fact that most of them had developed neutralizing antibodies (serum neutralization titers ranging from 1:2 to 1: 16). Seroconversion to gIII was detected as early as 7 days postinfection (dpi). Fourteen days after the challenge, all the animals exposed to wildtype BHV-1 had developed anti-gIII antibodies and were positive in this differential serologic test. Six controls plus 8 vaccinates kept in isolation were still positive to gIII when tested at 75 dpi. The use of the IBRV(NG)dltkdlgIII strain in conjunction with an anti-gIII specific blocking ELISA kit represents a powerful tool for BHV-1 control/eradication programs.

scholarly journals The Immunogenicity and Protective Efficacy of Bovine Herpesvirus 1 Glycoprotein D plus Emulsigen Are Increased by Formulation with CpG Oligodeoxynucleotides

2002 ◽  
Vol 76 (18) ◽  
pp. 9002-9010 ◽  
Author(s):  
X. P. Ioannou ◽  
P. Griebel ◽  
R. Hecker ◽  
L. A. Babiuk ◽  
S. van Drunen Littel-van den Hurk
Keyword(s):  
Immune Response ◽  
Neutralizing Antibodies ◽  
Protective Efficacy ◽  
Bovine Herpesvirus ◽  
Ammonium Bromide ◽  
Cpg Odn ◽  
Glycoprotein D ◽  
Bovine Herpesvirus 1 ◽  
Cpg Oligodeoxynucleotides ◽  
Herpesvirus 1

ABSTRACT The immunogenicity and protective efficacy of a bovine herpesvirus 1 (BHV-1) subunit vaccine formulated with Emulsigen (Em) and a synthetic oligodeoxynucleotide containing unmethylated CpG dinucleotides (CpG ODN) was determined in cattle. A truncated, secreted version of BHV-1 glycoprotein D (tgD) formulated with Em and CpG ODN at concentrations of 25, 2.5, or 0.25 mg/dose produced a more balanced immune response, higher levels of virus neutralizing antibodies, and greater protection after BHV-1 challenge compared to tgD adjuvanted with either Em or CpG ODN alone. In contrast, tgD formulated with Em and either 25 mg of a non-CpG ODN or another immunostimulatory compound, dimethyl dioctadecyl ammonium bromide, induced similar immunity and protection compared to tgD formulated with Em alone, a finding which confirms the immunostimulatory effect of ODN to be CpG motif mediated. Our results demonstrate the ability of CpG ODN to induce a strong and balanced immune response in a target species.

Sign in / Sign up

Export Citation Format

Share Document