Results 61 to 70 of about 2,272,172 (332)

Individuals cannot rely on COVID-19 herd immunity: Durable immunity to viral disease is limited to viruses with obligate viremic spread

open access: yesPLoS Pathogens, 2021
It is often messaged that herd immunity to Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV2 (CoV-2)), the causative agent of Coronavirus Disease 2019 (COVID-19), will protect nonvaccinated individuals from infection. Herd immunity refers to the
J. Yewdell
semanticscholar   +1 more source

Ethics of Vaccination in Childhood—A Framework Based on the Four Principles of Biomedical Ethics

open access: yesVaccines, 2021
Although vaccination is recognised as the top public health achievement of the twentieth century, unequivocal consensus about its beneficence does not exist among the general population.
Meta Rus, Urh Groselj
doaj   +1 more source

A qualitative risk assessment of factors contributing to foot and mouth disease outbreaks in cattle along the western boundary of the Kruger National Park [PDF]

open access: yes, 2009
Between November 2000 and the end of 2007, five outbreaks of foot and mouth disease (FMD) occurred in cattle in the area adjacent to the Kruger National Park (KNP) in the north-eastern corner of South Africa.
Bengis, R.G.   +6 more
core   +1 more source

Herd immunity by infection is not an option

open access: yesScience, 2021
Difficult lessons are learned from a largely uncontrolled COVID-19 epidemic in Manaus, Brazil Herd immunity is expected to arise when a virus cannot spread readily, because it encounters a population that has a level of immunity that reduces the number ...
Devi Sridhar, D. Gurdasani
semanticscholar   +1 more source

Herd immunity and epidemic size in networks with vaccination homophily. [PDF]

open access: yesPhysical Review E, 2021
We study how the herd immunity threshold and the expected epidemic size depend on homophily with respect to vaccine adoption. We find that the presence of homophily considerably increases the critical vaccine coverage needed for herd immunity and that ...
Takayuki Hiraoka   +3 more
semanticscholar   +1 more source

Vaccination Coverage for Routine Vaccines and Herd Immunity Levels against Measles and Pertussis in the World in 2019

open access: yesVaccines, 2021
In 2012, the World Health Organization (WHO) established the Global Vaccine Action Plan with the objective to promote essential vaccinations in all countries and achieve at least 90% vaccination coverage for all routine vaccines by 2020.
P. Plans-Rubió
semanticscholar   +1 more source

Road to achieving COVID‐19 herd immunity in Niger Republic: Challenges and recommendations

open access: yesPublic Health Challenges, 2022
COVID‐19 pandemic has had tremendous impact on countries across the world and Niger Republic is not left out of the ravaging impact of the virus. The rapid dissemination of the virus across the globe has led to the development of safe and efficacious ...
Sil‐Ana Salissou Abdou   +4 more
doaj   +1 more source

A Game-Theoretic Model of Monkeypox to Assess Vaccination Strategies [PDF]

open access: yes, 2020
A Game-Theoretic Model of Monkeypox to Assess Vaccination Strategies Sri Vibhaav Bankaru, Depts. of Biomedical Engineering, Math, & Chemistry, Samuel Kossol, William Hou, & Parsa Mahmoudi, with Dr. Jan Rychtar, Dept.
Bankuru, Sri Vibhaav   +5 more
core   +3 more sources

Invited review: Epidemics on social networks [PDF]

open access: yes, 2013
Since its first formulations almost a century ago, mathematical models for disease spreading contributed to understand, evaluate and control the epidemic processes.They promoted a dramatic change in how epidemiologists thought of the propagation of ...
Kuperman, Marcelo N.
core   +4 more sources

An improved corona-virus herd immunity optimizer algorithm for network reconfiguration based on fuzzy multi-criteria approach

open access: yesExpert systems with applications, 2021
Reconfiguration of the distribution network to determine its optimal configuration is a technical and low-cost method that can improve different characteristics of the network based on multi-criteria optimization.
A. Naderipour   +3 more
semanticscholar   +1 more source

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