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https://www.readbyqxmd.com/read/28651194/reference-intervals-for-hematological-and-biochemical-parameters-acute-phase-proteins-and-markers-of-oxidation-in-holstein-dairy-cows-around-3-and-30days-after-calving
#1
Pierangelo Moretti, Saverio Paltrinieri, Erminio Trevisi, Monica Probo, Annarita Ferrari, Andrea Minuti, Alessia Giordano
The establishment of specific reference intervals (RIs) is advisable when different metabolic conditions in the patient population are present or when existing RIs are not suitable. Holstein dairy cows, at the start of lactation, experience a negative energy balance and an altered immune function that can lead to different levels of blood parameters compared with cows at peak lactation. The aim of this study was the determination of RIs for Holstein cows at 3±1 and 30±3days in milk. To this aim, 145 cows, from 4 herds, were sampled...
June 20, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28650959/peridomestic-aedes-malayensis-and-aedes-albopictus-are-capable-vectors-of-arboviruses-in-cities
#2
Ian H Mendenhall, Menchie Manuel, Mahesh Moorthy, Theodore T M Lee, Dolyce H W Low, Dorothée Missé, Duane J Gubler, Brett R Ellis, Eng Eong Ooi, Julien Pompon
BACKGROUND: Dengue and chikungunya are global re-emerging mosquito-borne diseases. In Singapore, sustained vector control coupled with household improvements reduced domestic mosquito populations for the past 45 years, particularly the primary vector Aedes aegypti. However, while disease incidence was low for the first 30 years following vector control implementation, outbreaks have re-emerged in the past 15 years. Epidemiological observations point to the importance of peridomestic infection in areas not targeted by control programs...
June 26, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28647167/adolescent-meningococcal-serogroup-a-w-and-y-immune-responses-following-immunization-with-quadrivalent-meningococcal-a-c-w-and-y-conjugate-vaccine-optimal-age-for-vaccination
#3
Mariëtte B van Ravenhorst, Fiona R M van der Klis, Debbie M van Rooijen, Elisabeth A M Sanders, Guy A M Berbers
BACKGROUND: Recently the incidence of meningococcal serogroup Y (MenY) and in particular serogroup W (MenW) invasive disease has risen in several European countries, including the Netherlands. Adolescents are a target group for primary prevention through vaccination to protect against disease and reduce carriage and induce herd protection in the population. The present study assessed MenA, MenW and MenY antibody levels in adolescents up to one year following primary vaccination with quadrivalent MenACWY-PS conjugated to tetanus toxoid (MenACWY-TT)...
June 21, 2017: Vaccine
https://www.readbyqxmd.com/read/28646959/is-chickenpox-so-bad-what-do-we-know-about-immunity-to-varicella-zoster-virus-and-what-does-it-tell-us-about-the-future
#4
Anne A Gershon
Varicella and zoster continue to cause significant morbidity and even mortality in children and adults. Complications include bacterial superinfection, central nervous system manifestations such as meningitis, encephalitis, and cerebellar ataxia, and pain syndromes especially post herpetic neuralgia. Many developed countries but not all, are now administering live attenuated varicella vaccine routinely, with a decrease in the incidence of disease, providing personal and herd immunity. There is some controversy, however, in some countries concerning whether a decrease in the circulation of wild type virus will result in loss of immunity to VZV in persons who have already had varicella...
June 2017: Journal of Infection
https://www.readbyqxmd.com/read/28646948/generalized-herd-effects-and-vaccine-evaluation-impact-of-live-influenza-vaccine-on-off-target-bacterial-colonisation
#5
Michael J Mina
Interactions between pathogens and commensal microbes are major contributors to health and disease. Infectious diseases however are most often considered independent, viewed within a one-host one-pathogen paradigm and, by extension, the interventions used to treat and prevent them are measured and evaluated within this same paradigm. Vaccines, especially live vaccines, by stimulating immune responses or directly interacting with other microbes can alter the environment in which they act, with effects that span across pathogen species...
June 2017: Journal of Infection
https://www.readbyqxmd.com/read/28637462/outbreak-tracking-of-aleutian-mink-disease-virus-amdv-using-partial-ns1-gene-sequencing
#6
P Ryt-Hansen, C K Hjulsager, E E Hagberg, M Chriél, T Struve, A G Pedersen, L E Larsen
BACKGROUND: Aleutian Mink Disease (AMD) is an infectious disease of mink (Neovison vison) and globally a major cause of economic losses in mink farming. The disease is caused by Aleutian Mink Disease Virus (AMDV) that belongs to the genus Amdoparvovirus within the Parvoviridae family. Several strains have been described with varying virulence and the severity of infection also depends on the host's genotype and immune status. Clinical signs include respiratory distress in kits and unthriftiness and low quality of the pelts...
June 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28635647/virulence-genes-of-s-aureus-from-dairy-cow-mastitis-and-contagiousness-risk
#7
Giada Magro, Stefano Biffani, Giulietta Minozzi, Ralf Ehricht, Stefan Monecke, Mario Luini, Renata Piccinini
Staphylococcus aureus (S. aureus) is a major agent of dairy cow intramammary infections: the different prevalences of mastitis reported might be related to a combination of S. aureus virulence factors beyond host factors. The present study considered 169 isolates from different Italian dairy herds that were classified into four groups based on the prevalence of S. aureus infection at the first testing: low prevalence (LP), medium-low (MLP), medium-high (MHP) and high (HP). We aimed to correlate the presence of virulence genes with the prevalence of intramammary infections in order to develop new strategies for the control of S...
June 21, 2017: Toxins
https://www.readbyqxmd.com/read/28634355/longitudinal-study-of-middle-east-respiratory-syndrome-coronavirus-infection-in-dromedary-camel-herds-in-saudi-arabia-2014-2015
#8
Maged Gomaa Hemida, Abdulmohsen Alnaeem, Daniel Kw Chu, Ranawaka Apm Perera, Samuel Ms Chan, Faisal Almathen, Emily Yau, Brian Cy Ng, Richard J Webby, Leo Lm Poon, Malik Peiris
Two herds of dromedary camels were longitudinally sampled with nasal and rectal swabs and serum, between September 2014 and May 2015, and the samples were tested for Middle East Respiratory Syndrome (MERS) coronavirus RNA and antibodies. Evidence of MERS-CoV infection was confirmed in one herd on the basis of detection of virus RNA in nasal swabs from three camels and significant increases in the antibody titers from three others. The three viruses were genetically identical, thus indicating introduction of a single virus into this herd...
June 21, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28631587/dietary-supplementation-with-a-nucleotide-rich-yeast-extract-modulates-gut-immune-response-and-microflora-in-weaned-pigs-in-response-to-a-sanitary-challenge
#9
S M Waititu, F Yin, R Patterson, A Yitbarek, J C Rodriguez-Lecompte, C M Nyachoti
An experiment was carried out to evaluate the short-term effect of supplementing a nucleotide-rich yeast extract (NRYE) on growth performance, gut structure, immunity and microflora of piglets raised under sanitary and unsanitary conditions. A total of 84, 21-day old piglets were used in this study; 42 piglets were raised in a room designated as the clean room that was washed once per week, whereas the other 42 piglets were raised in a room designated as the unclean room in which 7 kg of manure from the sow herd was spread on each pen floor on day 1 and 7 and the room was not washed throughout the experiment...
June 20, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28628025/-phenotype-facilities-of-lymphocytes-in-hemorrhagic-fever-with-renal-syndrome
#10
M Ivanov, I Balmasova, Z Vasnyova
Hemorrhagic fever with renal syndrome (HFRS) is a feral herd disease caused by hantaviruses. HERS may be severe and its manifestations include acute renal failure, intoxication, hemorrhages and pain syndrome. Hantaviruses as pathogen of HFRS wield considerable influence on the character of the immune response, in particular, is capable of lymphocytic cytolysis suppressing. It was found that cytotoxic T lymphocytes along with NKT and CD8 + regulatory T cells play the key role in the immune mechanisms of hemorrhagic fever with renal syndrome...
May 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28624927/seroprevalence-and-risk-factors-for-bovine-brucellosis-in-domestic-yaks-bos-grunniens-in-tibet-china
#11
Jiangyong Zeng, Ciren Duoji, Zhenjie Yuan, Silang Yuzhen, Weixing Fan, Lili Tian, Chang Cai, Ian Robertson
A cross-sectional study was conducted in three counties (Damxung, Maizhokunggar and Yadong) in Tibet in April and May 2015. A total of 1,523 yaks owned by 181 herders were randomly selected and blood sampled. Sera were tested using the rose bengal test (RBT) and a competitive immune-enzymatic assay (C-ELISA) and the test results interpreted in parallel. The individual yak prevalence was 2.8% (95% CI 2.0-3.7) with a herd prevalence of 18.2% (95% CI 12.9-24.6). At the individual level, two predictor variables, age and production system, were significantly associated with seropositivity by a binary logistic regression analysis...
June 17, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28623028/impact-and-cost-effectiveness-of-rotavirus-vaccination-in-bangladesh
#12
Clint Pecenka, Umesh Parashar, Jacqueline E Tate, Jahangir A M Khan, Devin Groman, Stephen Chacko, Md Shamsuzzaman, Andrew Clark, Deborah Atherly
INTRODUCTION: Diarrheal disease is a leading cause of child mortality globally, and rotavirus is responsible for more than a third of those deaths. Despite substantial decreases, the number of rotavirus deaths in children under five was 215,000 per year in 2013. Of these deaths, approximately 41% occurred in Asia and 3% of those in Bangladesh. While Bangladesh has yet to introduce rotavirus vaccination, the country applied for Gavi support and plans to introduce it in 2018. This analysis evaluates the impact and cost-effectiveness of rotavirus vaccination in Bangladesh and provides estimates of the costs of the vaccination program to help inform decision-makers and international partners...
June 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28619148/antigenic-diversity-of-brazilian-isolates-of-hobi-like-pestiviruses
#13
R K Dias, J F Cargnelutti, M N Weber, C W Canal, F V Bauermann, J F Ridpath, R Weiblen, E F Flores
Hobi-like viruses comprise an unclassified group of bovine pestiviruses related to bovine viral diarrhea virus 1 (BVDV-1) and 2 (BVDV-2). These viruses were originally identified in fetal bovine serum from Brazilian origin and, subsequently, isolated from diseased animals in several countries. Herein we performed an antigenic characterization of eight Brazilian HoBi-like viruses isolated from persistently infected (PI) animals and from gastroenteric disease (2007-2015). Phylogenetic analysis based on the 5' unstranslated region (UTR) clustered these viruses with other HoBi-like viruses from European and Asiatic origin...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28606324/serological-lessons-from-the-bovine-lungworm-dictyocaulus-viviparus-antibody-titre-development-is-independent-of-the-infection-dose-and-reinfection-shortens-seropositivity
#14
Christina Strube, Andrea Springer, Anne-Marie Schunn, Andrew B Forbes
Infections with the bovine lungworm Dictyocaulus viviparus, the causative agent of parasitic bronchitis, are accompanied by substantial economic losses due to impacts on production, clinical respiratory disease or even death of diseased cattle. To detect lungworm antibodies in cattle, an enzyme-linked immunosorbent assay (ELISA) based on recombinant major sperm protein (MSP) has been developed. However, it remained unknown whether the infection dose influences antibody levels, and how acquired immunity influences antibody level patterns during reinfections...
August 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28601453/efficacy-and-clinical-safety-of-pegbovigrastim-for-preventing-naturally-occurring-clinical-mastitis-in-periparturient-primiparous-and-multiparous-cows-on-us-commercial-dairies
#15
Peter Canning, Renee Hassfurther, Terry TerHune, Karen Rogers, Scott Abbott, David Kolb
Periparturient dairy cows experience impaired immune function, exhibited as a transient decrease in neutrophil function and neutropenia. This decrease in immune competence is associated with an increase in susceptibility to bacterial infections, including mastitis and metritis. Bovine granulocyte colony stimulating factor (bG-CSF) is an endogenous protein that enhances neutrophil bactericidal functions and increases the production of neutrophils from bone marrow precursors. Administration of pegbovigrastim (recombinant bG-CSF covalently bound to polyethylene glycol) around the time of calving has been shown to reduce the incidence of new clinical mastitis cases in a natural disease model system...
June 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28601365/antibody-mediated-protection-against-staphylococcus-aureus-dermonecrosis-and-sepsis-by-a-whole-cell-vaccine
#16
Fan Zhang, Maria Jun, Olivia Ledue, Muriel Herd, Richard Malley, Ying-Jie Lu
Staphylococcus aureus is a very important human pathogen that causes significant morbidity and mortality worldwide. Several vaccine clinical trials based on generating antibody against staphylococcal surface polysaccharides or proteins have been unsuccessful. A killed whole cell lysate preparation (SaWCA) was made by lysing a USA 300 strain with lysostaphin followed by sonication and harvest of the supernatant fraction. Immunization with SaWCA and cholera toxin (CT) generated robust IL-17A but relatively modest antibody responses, and provided protection in the skin abscess but not in the dermonecrosis or invasive infection model...
June 7, 2017: Vaccine
https://www.readbyqxmd.com/read/28599793/a-cross-reacting-material-crm197-conjugate-vaccine-induces-diphtheria-toxin-neutralizing-antibody-response-in-children-and-adolescents-infected-or-not-with-hiv
#17
Giselle P Silva, Rafaela S Santos, Wânia F Pereira-Manfro, Bianca Ferreira, Daniella M Barreto, Ana Cristina C Frota, Cristina B Hofer, Lucimar G Milagres
Anti-diphtheria antibody levels decrease with aging, and frequent booster vaccinations are required to maintain herd immunity. We analyzed the diphtheria toxin neutralizing antibody (DT-Nab) response induced by a conjugate vaccine (meningococcal C polysaccharide-CRM197) in HIV-vertically infected (HI) children and adolescents and healthy controls (HC) with matched age. We report the association of DT-Nab with the bactericidal antibodies to serogroup C meningococcus (MenC). Before vaccination, 21 HI patients (50%) had no protection against diphtheria (≤0...
June 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28588291/seroprevalence-of-neutralizing-antibodies-against-adenovirus-type-14-and-55-in-healthy-adults-in-southern-china
#18
Xuehua Zheng, Xia Rong, Ying Feng, Xikui Sun, Liang Li, Qian Wang, Min Wang, Wenkuan Liu, Chufang Li, Yiyu Yang, Rong Zhou, Jiahai Lu, Liqiang Feng, Ling Chen
Re-emerging human adenovirus types 14 (Ad14) and 55 (Ad55) have caused severe respiratory diseases and even deaths during recent outbreaks. However, the seroprevalence of neutralizing antibodies (nAbs) in healthy adults, which may reflect previous circulation and help to predict potential outbreaks, remains unclear. In this study, we established micro-neutralizing (MN) assays on the basis of recombinant Ad14 and Ad55 reporter viruses, and we investigated serum nAbs in healthy blood donors from Southern China...
June 7, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28586466/health-and-economic-impact-of-a-tender-based-gender-neutral-hpv16-18-vaccination-program-in-the-netherlands
#19
Venetia Qendri, Johannes A Bogaards, Johannes Berkhof
Background: Uptake among girls in the Dutch immunization program has plateaued around 60%. Vaccinating boys may be an appealing complementary strategy for the prevention of HPV-related diseases, especially since tender negotiations and reduced dosing schemes have driven down the cost of vaccination. Methods: We expanded a previously published Bayesian synthesis framework to account for all vaccine type-related cancers and herd immunity effects from vaccinating girls and boys...
June 6, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28578219/identification-of-new-antigen-candidates-for-the-early-diagnosis-of-mycobacterium-avium-subsp-paratuberculosis-infection-in-goats
#20
Armel Souriau, Sandrine Freret, Benjamin Foret, Peter T J Willemsen, Douwe Bakker, Laurence A Guilloteau
Currently Mycobacterium avium subsp. paratuberculosis (MAP) infection is diagnosed through indirect tests based on the immune response induced by the infection. The antigens commonly used in IFN-γ release assays (IGRA) are purified protein derivative tuberculins (PPD). However, PPDs, lack both specificity (Sp) and sensitivity (Se) in the early phase of infection. This study investigated the potential of 16 MAP recombinant proteins and five lipids to elicit the release of IFN-γ in goats from herds with or without a history of paratuberculosis...
May 26, 2017: Research in Veterinary Science
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