scholarly journals Prevalence of the main infectious causes of abortion in dairy cattle in Algeria

2017 ◽  
Vol 61 (3) ◽  
pp. 337-343 ◽  
Author(s):  
Salima-Yamina Derdour ◽  
Fella Hafsi ◽  
Naouelle Azzag ◽  
Safia Tennah ◽  
Abdelouahab Laamari ◽  
...  
Keyword(s):  
Brucella Abortus ◽  
Case Control Study ◽  
Neospora Caninum ◽  
Case Control ◽  
Economic Losses ◽  
Tritrichomonas Foetus ◽  
Infectious Agents ◽  
Salmonella Dublin ◽  
Agriculture Sector ◽  
Control Study

Abstract Introduction: Abortion in cattle is a major source of economic losses for the agriculture sector. It can be due to infectious or non-infectious factors. Among infectious factors, parasites, bacteria, viruses, and fungi can be involved. The present work investigated the prevalence of the main infectious agents of abortion in Algerian cattle. Material and Methods: Altogether 278 non-aborting and 82 aborting cows were analysed. Results: The prevalence ranged from 0% for Tritrichomonas foetus to 15% for Neospora caninum. Additionally, a case-control study was performed to find the association between the presence of the pathogens and the occurrence of abortion in cows. The odds ratios were significant for Neospora caninum, bovine herpes virus 4, BVD virus, Brucella abortus, Salmonella Dublin, Leptospira interrogans serovar Hardjo, and Coxiella burnetii. Conclusions: The pathogens enumerated here could be major causes of abortion among Algerian cattle.

scholarly journals Etiologic diagnosis of bovine infectious abortion by PCR

2009 ◽  
Vol 39 (9) ◽  
pp. 2563-2570 ◽  
Author(s):  
Teane Milagres Augusto da Silva ◽  
Raquel Gonzaga de Oliveira ◽  
Juliana Pinto da Silva Mol ◽  
Mariana Noyma Xavier ◽  
Tatiane Alves da Paixão ◽  
...  
Keyword(s):  
Listeria Monocytogenes ◽  
Brucella Abortus ◽  
Neospora Caninum ◽  
Economic Losses ◽  
Tritrichomonas Foetus ◽  
Bovine Herpesvirus 1 ◽  
Tissue Homogenates ◽  
Fetus Subsp ◽  
Arcanobacterium Pyogenes ◽  
Etiologic Diagnosis

Infectious abortion is a significant cause of reproductive failure and economic losses in cattle. The goal of this study was to detect nucleic acids of several infectious agents known to cause abortion including Arcanobacterium pyogenes, Bovine Herpesvirus 1, Brucella abortus, Campylobacter fetus subsp. venerealis, Chlamydophila abortus, Leptospira sp., Listeria monocytogenes, Salmonella sp., Mycoplasma bovis, Mycoplasma bovigenitalium, Neospora caninum, and Tritrichomonas foetus. Tissue homogenates from 42 fetuses and paraffin-embedded tissues from 28 fetuses and 14 placentas/endometrium were included in this study. Brucella abortus was detected in 14.2% (12/84) of the samples. Salmonella sp. DNA was amplified from 2 fetuses, and there was one positive for Neospora caninum, and another for Listeria monocytogenes. This PCR-based approach resulted in identification of the etiology in 19% of samples, or 20% if considered fetal tissues only.

Neospora caninum infection and reproductive problems in dairy cows from Brazil: A case-control study

2021 ◽  
pp. 100683
Author(s):  
Giovanna Gati de Souza ◽  
Lidiana Zanetti Amatti ◽  
Luana Venâncio Garcia ◽  
Letícia Ramos Costa ◽  
Ana Flávia Minutti ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Case Control Study ◽  
Neospora Caninum ◽  
Case Control ◽  
Caninum Infection ◽  
Control Study

A Swiss case–control study to assess Neospora caninum-associated bovine abortions by PCR, histopathology and serology

2001 ◽  
Vol 102 (1-2) ◽  
pp. 1-15 ◽  
Author(s):  
H. Sager ◽  
I. Fischer ◽  
K. Furrer ◽  
M. Strasser ◽  
A. Waldvogel ◽  
...  
Keyword(s):  
Case Control Study ◽  
Neospora Caninum ◽  
Case Control ◽  
Control Study

scholarly journals Seroepidemiology of Chronic Fatigue Syndrome: A Case-Control Study

1995 ◽  
Vol 21 (6) ◽  
pp. 1386-1389 ◽  
Author(s):  
Alison C. Mawle ◽  
Rosane Nisenbaum ◽  
James G. Dobbins ◽  
Howard E. Gary ◽  
John A. Stewart ◽  
...  
Keyword(s):  
Chronic Fatigue Syndrome ◽  
Case Control Study ◽  
Chronic Fatigue ◽  
Case Control ◽  
Infectious Agents ◽  
Serological Testing ◽  
Fatigue Syndrome ◽  
Wide Range ◽  
Control Study

Abstract We performed serological testing for a large number of infectious agents in 26 patients from Atlanta who had chronic fatigue syndrome (CFS) and in 50 controls matched by age, race, and sex. We did not find any agent associated with CFS. In addition, we did not find elevated levels of antibody to any of a wide range of agents examined. In particular, we did not find elevated titers of antibody to any herpesvirus, nor did we find evidence of enteroviral exposure in this group of patients.

scholarly journals Infectious agents is a risk factor for myxomatous mitral valve degeneration: A case control study

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Marcos Gradim Tiveron ◽  
Pablo Maria Alberto Pomerantzeff ◽  
Maria de Lourdes Higuchi ◽  
Marcia Martins Reis ◽  
Jaqueline de Jesus Pereira ◽  
...  
Keyword(s):  
Risk Factor ◽  
Mitral Valve ◽  
Case Control Study ◽  
Case Control ◽  
Infectious Agents ◽  
Control Study

Maternal antibodies to infectious agents and risk for non-affective psychoses in the offspring—a matched case–control study

2012 ◽  
Vol 140 (1-3) ◽  
pp. 25-30 ◽  
Author(s):  
Åsa Blomström ◽  
Håkan Karlsson ◽  
Susanne Wicks ◽  
Shuojia Yang ◽  
Robert H. Yolken ◽  
...  
Keyword(s):  
Case Control Study ◽  
Case Control ◽  
Maternal Antibodies ◽  
Infectious Agents ◽  
Affective Psychoses ◽  
Matched Case ◽  
Matched Case Control Study ◽  
Control Study

Neonatal antibodies to infectious agents and risk of bipolar disorder: a population-based case-control study

2011 ◽  
Vol 13 (7-8) ◽  
pp. 624-629 ◽  
Author(s):  
Preben Bo Mortensen ◽  
Carsten Bøcker Pedersen ◽  
John Joseph McGrath ◽  
David Michael Hougaard ◽  
Bent Nørgaard-Petersen ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Case Control Study ◽  
Population Based ◽  
Case Control ◽  
Infectious Agents ◽  
Control Study
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