keyword
MENU ▼
Read by QxMD icon Read
search

herd immunity

keyword
https://www.readbyqxmd.com/read/27905834/rubella-outbreak-and-outbreak-management-in-a-school-setting-china-2014
#1
Caiyun Chang, Huilai Ma, Wenjia Liang, Pei Hu, Xianghuan Mo, Zhijie An, Huizhen Zheng
BACKGROUND: An active response to a rubella outbreak may interrupt disease transmission, and outbreak response immunization (ORI) can increase immunity among persons who might otherwise not be protected. On March 17, 2014, a rubella outbreak was reported in a middle school in Guangzhou city, China. We conducted an investigation to assess impact of a policy of exclusion of cases from school and of ORI. METHODS: Active surveillance was used to find cases of rubella...
December 1, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27898926/assessment-of-serum-25-hydroxyvitamin-d-concentrations-of-beef-cows-and-calves-across-seasons-and-geographical-locations
#2
C D Nelson, J L Powell, D M Price, M J Hersom, J V Yelich, M E Drewnoski, S L Bird, G Allen Bridges
Vitamin D is critical for the growth and development of calves and positively contributes to immune function of cattle. Serum 25-hydroxyvitamin D (25(OH)D) concentrations above 20 ng/mL have traditionally been considered adequate for growth and development of cattle, but recent evidence has indicated that concentrations below 30 ng/mL are insufficient for immunity. Because little information is available regarding vitamin D status of beef cattle, the objective of this study was to evaluate vitamin D status of beef cow-calf herds on pasture as affected by season and location...
September 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27894910/cervical-cancer-screening-in-women-vaccinated-against-human-papillomavirus-infection-recommendations-from-a-consensus-conference
#3
Paolo Giorgi Rossi, Francesca Carozzi, Antonio Federici, Guglielmo Ronco, Marco Zappa, Silvia Franceschi
In Italy, the cohorts of women who were offered Human papillomavirus (HPV) vaccination in 2007/08 will reach the age for cervical cancer (CC) screening from 2017. The simultaneous shift from cytology-based screening to HPV test-based screening gives the opportunity for unprecedented reorganisation of CC prevention. The ONS (National Screening Monitoring Centre) Directive and the GISCi (Italian Group for Cervical Screening) identified the consensus conference as the most suitable method for addressing this topic...
November 25, 2016: Preventive Medicine
https://www.readbyqxmd.com/read/27892866/effectiveness-of-a-bhv-1-befv-bivalent-vaccine-against-bovine-herpesvirus-type-1-infection-in-cattle
#4
Yao-Chi Chung, Hsiu-Yen Shen, Li-Ting Cheng, Shyh-Shyan Liu, Chun-Yen Chu
Bovine herpesvirus type 1 (BHV-1) causes acute febrile respiratory diseases (infectious bovine rhinotracheitis, IBR), decreased milk production, weight loss and abortion. Bovine ephemeral fever virus (BEFV) causes acute febrile respiratory disease, with pulmonary emphysema and pulmonary edema as the main signs. These viruses infect domesticated herds and lead to significant economic losses. In our previous study, an inactivated BHV-1 and BEFV bivalent vaccine was formulated with water-in-oil-in-water adjuvant, and vaccine efficacy was evaluated in guinea pigs...
October 13, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27884441/trypanosoma-vivax-in-water-buffalo-of-the-venezuelan-llanos-an-unusual-outbreak-of-wasting-disease-in-an-endemic-area-of-typically-asymptomatic-infections
#5
Herakles A Garcia, Oneyda J Ramírez, Carla M F Rodrigues, Rafael G Sánchez, Angelica M Bethencourt, Gabriela Del M Pérez, Antonio H H Minervino, Adriana C Rodrigues, Marta M G Teixeira
Trypanosoma vivax has been associated with asymptomatic infections in African and South American buffalo. In this study, T. vivax was analyzed in water buffalo (Bubalus bubalis) from Venezuela in a molecular survey involving 293 blood samples collected from 2006 to 2015 across the Llanos region. Results demonstrated constant infections (average 23%) during the years analyzed. In general, animals were healthy carriers of T. vivax with low levels of parasitemia and were diagnosed exclusively by TviCATL-PCR. However, an outbreak of severe acute infections mostly in dairy animals was reported during a prolonged drought affecting 30...
October 30, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27881489/kinetics-of-meningococcal-serogroup-c-specific-functional-antibody-levels-up-to-15-years-after-a-single-immunization-with-a-meningococcal-serogroup-c-conjugate-vaccine-during-adolescence
#6
Susanne P Stoof, Mariëtte B van Ravenhorst, Debbie M van Rooijen, Richarda M de Voer, Fiona R M van der Klis, Greet J Boland, Elisabeth A M Sanders, Guy A M Berbers, Peter F Teunis
BACKGROUND: Adolescent vaccination is now considered the key factor to offer direct protection against meningococcal disease but also to reduce carriage and transmission and in this way establish herd protection. This study estimated age-dependent patterns in functional meningococcal serogroup C (MenC) antibody kinetics after primary MenC conjugate (MenCC) vaccination in adolescents. METHODS: Serum samples (n=1676) were drawn between 2006-2011 from individuals aged 9-18 years at time of primary MenCC vaccination in 2002...
November 23, 2016: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/27876690/-mommy-blogs-and-the-vaccination-exemption-narrative-results-from-a-machine-learning-approach-for-story-aggregation-on-parenting-social-media-sites
#7
Timothy R Tangherlini, Vwani Roychowdhury, Beth Glenn, Catherine M Crespi, Roja Bandari, Akshay Wadia, Misagh Falahi, Ehsan Ebrahimzadeh, Roshan Bastani
BACKGROUND: Social media offer an unprecedented opportunity to explore how people talk about health care at a very large scale. Numerous studies have shown the importance of websites with user forums for people seeking information related to health. Parents turn to some of these sites, colloquially referred to as "mommy blogs," to share concerns about children's health care, including vaccination. Although substantial work has considered the role of social media, particularly Twitter, in discussions of vaccination and other health care-related issues, there has been little work on describing the underlying structure of these discussions and the role of persuasive storytelling, particularly on sites with no limits on post length...
November 22, 2016: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/27875546/evaluation-of-control-strategies-for-porcine-reproductive-and-respiratory-syndrome-prrs-in-swine-breeding-herds-using-a-discrete-event-agent-based-model
#8
Andréia Gonçalves Arruda, Robert Friendship, Jane Carpenter, Amy Greer, Zvonimir Poljak
The objective of this study was to develop a discrete event agent-based stochastic model to explore the likelihood of the occurrence of porcine reproductive and respiratory syndrome (PRRS) outbreaks in swine herds with different PRRS control measures in place. The control measures evaluated included vaccination with a modified-live attenuated vaccine and live-virus inoculation of gilts, and both were compared to a baseline scenario where no control measures were in place. A typical North American 1,000-sow farrow-to-wean swine herd was used as a model, with production and disease parameters estimated from the literature and expert opinion...
2016: PloS One
https://www.readbyqxmd.com/read/27872801/-beauty-contest-indicator-of-cognitive-ability-and-free-riding-strategies-results-from-a-scenario-experiment-about-pandemic-flu-immunization
#9
Björn Rönnerstrand
High immunization coverage rates are desirable in order to reduce total morbidity and mortality rates, but it may also provide an incentive for herd immunity free riding strategies. The aim of this paper was to investigate the link between cognitive ability and vaccination intention in a hypothetical scenario experiment about Avian Flu immunization. A between-subject scenario experiment was utilized to examine the willingness to undergo vaccination when the vaccination coverage was proclaimed to be 36, 62 and 88%...
March 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/27870922/evaluating-the-benefits-of-vaccination-when-used-in-combination-with-stamping-out-measures-against-hypothetical-introductions-of-foot-and-mouth-disease-into-new-zealand-a-simulation-study
#10
R L Sanson, T Rawdon, K Owen, K Hickey, M van Andel, Z D Yu
AIMS: To evaluate the benefits of vaccination against simulated outbreaks of foot-and-mouth disease (FMD) in New Zealand, when applied as an additional measure to stamping-out. METHODS: A simulation modelling approach was used. The study population comprised all known farms in New Zealand with FMD-susceptible livestock. Infection was seeded into three different areas of New Zealand. Transmission mechanisms included direct and indirect contacts, local spread and airborne spread...
November 21, 2016: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/27870907/national-survey-indicates-that-individual-vaccination-decisions-respond-positively-to-community-vaccination-rates
#11
John Romley, Prodyumna Goutam, Neeraj Sood
Some models of vaccination behavior imply that an individual's willingness to vaccinate could be negatively correlated with the vaccination rate in her community. The rationale is that a higher community vaccination rate reduces the risk of contracting the vaccine-preventable disease and thus reduces the individual's incentive to vaccinate. At the same time, as for many health-related behaviors, individuals may want to conform to the vaccination behavior of peers, counteracting a reduced incentive to vaccinate due to herd immunity...
2016: PloS One
https://www.readbyqxmd.com/read/27863543/reduced-humoral-immunity-and-atypical-cell-mediated-immunity-in-response-to-vaccination-in-cows-naturally-infected-with-bovine-leukemia-virus
#12
Meredith C Frie, Kelly R Sporer, Joseph C Wallace, Roger K Maes, Lorraine M Sordillo, Paul C Bartlett, Paul M Coussens
Bovine leukemia virus (BLV) is a retrovirus that is widely distributed across US dairy herds: over 83% of herds are BLV-infected and within-herd infection rates can approach 50%. BLV infection reduces both animal longevity and milk production and can interfere with normal immune health. With such a high prevalence of BLV infection in dairy herds, it is essential to understand the circumstances by which BLV negatively affects the immune system of infected cattle. To address this question, BLV- and BLV+ adult, lactating Holstein dairy cows were vaccinated with Bovi-Shield GOLD(®) FP(®) 5 L5 HB and their immune response to vaccination was measured over the course of 28days...
December 2016: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/27854310/does-herd-immunity-exist-in-aquatic-animals
#13
Isaac F Standish, Travis O Brenden, Mohamed Faisal
Viral hemorrhagic septicemia virus genotype IVb (VHSV-IVb) is presently found throughout the Laurentian Great Lakes region of North America. We recently developed a DNA vaccine preparation containing the VHSV-IVb glycoprotein (G) gene with a cytomegalovirus (CMV) promoter that proved highly efficacious in protecting muskellunge (Esox masquinongy) and three salmonid species. This study was conducted to determine whether cohabitation of VHSV-IVb immunized fishes could confer protection to non-vaccinated (i.e...
November 15, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27836046/an-economic-evaluation-of-intervention-strategies-for-porcine-epidemic-diarrhea-ped
#14
Longfeng Weng, Alfons Weersink, Zvonimir Poljak, Kees de Lange, Mike von Massow
The economic losses of Porcine Epidemic Diarrhea (PED) and the net benefits of strategies to control the virus are calculated for individual farrow-to-finish herds. A production simulation model that estimates the number of pigs by population cohorts on a weekly basis for a farrow-to-finish farm depending on production parameters is simulated under normal operating conditions and then with an outbreak of PED. The estimated annual costs of a PED outbreak with the closure of the breeding herd as the only intervention is approximately $300,000 for a 700-sow farrow-to-finishing herd...
November 1, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/27820969/the-global-meningococcal-initiative-global-epidemiology-the-impact-of-vaccines-on-meningococcal-disease-and-the-importance-of-herd-protection
#15
Ray Borrow, Pedro Alarcón, Josefina Carlos, Dominique A Caugant, Hannah Christensen, Roberto Debbag, Philippe De Wals, Gabriela Echániz-Aviles, Jamie Findlow, Chris Head, Daphne Holt, Hajime Kamiya, Samir K Saha, Sergey Sidorenko, Muhamed-Kheir Taha, Caroline Trotter, Julio A Vázquez Moreno, Anne von Gottberg, Marco A P Sáfadi
The 2015 Global Meningococcal Initiative (GMI) meeting discussed the global importance of meningococcal disease (MD) and its continually changing epidemiology. Areas covered: Although recent vaccination programs have been successful in reducing incidence in many countries (e.g. Neisseria meningitidis serogroup [Men]C in Brazil, MenA in the African meningitis belt), new clones have emerged, causing outbreaks (e.g. MenW in South America, MenC in Nigeria and Niger). The importance of herd protection was highlighted, emphasizing the need for high vaccination uptake among those with the highest carriage rates, as was the need for boosters to maintain individual and herd protection following decline of immune response after primary immunization...
November 22, 2016: Expert Review of Vaccines
https://www.readbyqxmd.com/read/27817957/long-term-persistence-of-protective-antibodies-in-dutch-adolescents-following-a-meningococcal-serogroup-c-tetanus-booster-vaccination
#16
Mariëtte B van Ravenhorst, Axel Bonacic Marinovic, Fiona R M van der Klis, Debbie M van Rooijen, Marjan van Maurik, Susanne P Stoof, Elisabeth A M Sanders, Guy A M Berbers
INTRODUCTION: Due to waning immunity, infant vaccination with meningococcal serogroup C conjugated (MenCC) vaccines is insufficient to maintain long-term individual protection. Adolescent booster vaccination is thought to offer direct protection against invasive meningococcal disease (IMD) but also to reduce meningococcal carriage and transmission and in this way establish herd protection in the population. Previously, we studied antibody levels after adolescent MenCC booster vaccination...
December 7, 2016: Vaccine
https://www.readbyqxmd.com/read/27812893/microarray-analysis-of-differential-gene-expression-profiles-in-blood-cells-of-naturally-blv-infected-and-uninfected-holstein-friesian-cows
#17
P Brym, S Kamiński
The aim of the present study was to examine gene expression changes in response to bovine leukemia virus (BLV) infection, in an effort to determine genes that take a part in molecular events leading to persistent lymphocytosis (PL), and to better define genes involved in host response to BLV infection. Using bovine 70-mer oligonucleotide spotted microarrays (BLOPlus) and qRT-PCR validation, we studied global gene expression profiles in blood cells in vivo of 12 naturally BLV-infected Polish Holstein cows, and 12 BLV non-infected controls of the same breed and reared in herds with high BLV seroprevalence...
November 3, 2016: Molecular Biology Reports
https://www.readbyqxmd.com/read/27806993/superior-protection-from-live-attenuated-vaccines-directed-against-johne-s-disease
#18
Daniel C Shippy, Justin J Lemke, Aubrey Berry, Kathryn Nelson, Murray E Hines, Adel M Talaat
Mycobacterium avium subspecies paratuberculosis (M. paratuberculosis) is the etiological agent of Johne's disease in ruminants. Johne's disease is an important enteric infection causing large economic losses associated with infected herds. In an attempt to fight this infection, we created two novel live-attenuated vaccine candidates with mutations in sigH and lipN (pgsH and pgsN, respectively). Earlier reports in mice suggested these vaccines are promising candidates to fight Johne's disease in ruminants. In this study, we tested the performance of the two constructs as vaccine candidates using the goat model of Johne's disease...
November 2, 2016: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/27793195/review-on-the-transmission-porcine-reproductive-and-respiratory-syndrome-virus-between-pigs-and-farms-and-impact-on-vaccination
#19
REVIEW
Emanuela Pileri, Enric Mateu
Porcine reproductive and respiratory syndrome (PRRS) is considered to be one of the most costly diseases affecting intensive pig production worldwide. Control of PRRS is a complex issue and involves a combination of measures including monitoring, diagnosis, biosecurity, herd management, and immunization. In spite of the numerous studies dealing with PRRS virus epidemiology, transmission of the infection is still not fully understood. The present article reviews the current knowledge on PRRSV transmission between and within farm, and the impact of vaccination on virus transmission...
October 28, 2016: Veterinary Research
https://www.readbyqxmd.com/read/27791476/polymorphisms-of-the-toll-like-receptor-2-of-goats-capra-hircus-may-be-associated-with-somatic-cell-count-in-milk
#20
Christina T Ruiz-Rodriguez, Jessica R Brandt, Ryan Oliverio, Yasuko Ishida, Noa Guedj, Edgar F Garrett, Gila Kahila Bar-Gal, Nikolas Nikolaidis, Felipe C Cardoso, Alfred L Roca
Toll-like receptor 2 (TLR2) plays an important role in recognition by the innate immune system of Gram-positive bacteria. As Gram-positive bacteria cause mastitis, we examined variations in the region of the TLR2 gene that codes for the extracellular domain. Samples of forty goats from a single dairy herd were collected, half with low SCC (≤200,000 cells/mL), and half with higher SCC. Two synonymous single nucleotide polymorphisms (SNPs) were identified: 840G > A and 1083A > G. One nonsynonymous SNP 739G > A was identified...
October 28, 2016: Animal Biotechnology
keyword
keyword
66171
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"