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Cross-reactive memory T cells and herd immunity to SARS-CoV-2
Nature reviews. Immunology, 2020 Immunity is a multifaceted phenomenon. For T cell-mediated memory responses to SARS-CoV-2, it is relevant to consider their impact both on COVID-19 disease severity and on viral spread in a population.
M. Lipsitch +3 more
semanticscholar +1 more source
Herd immunity by infection is not an option
Science, 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
The Effect of Farming System Type on Piglet Production
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2020 Reproductive performance of sows is the main factor influencing the profitability of piglet production, and simultaneously it is a basic indicator of farm management quality.
Kamila Pokorná +5 more
doaj +1 more source
Bioscience Journal, 2021 The reproductive efficiency of livestock is the basis for the success of livestock, dairy or beef, and having high reproductive performance depends on several factors within the production system and the presence of infectious diseases of the ...
Giovani Batista Pastre +6 more
doaj +1 more source
Relationship between dairy cow genetic merit and profit on commercial spring calving dairy farms [PDF]
, 2011 peer-reviewedBecause not all animal factors influencing profitability can be included in total merit breeding indices for profitability, the association between animal total merit index and true profitability, taking cognisance of all factors associated
Berry, Donagh +3 more
core +1 more source
Herd Immunity and Implications for SARS-CoV-2 Control.
Journal of the American Medical Association (JAMA), 2020 Herd immunity, also known as indirect protection, community immunity, or community protection, refers to the protection of susceptible individuals against an infection when a sufficiently large proportion of immune individuals exist in a population.
S. Omer, I. Yildirim, H. Forman
semanticscholar +1 more source
Journal of Empirical Finance, 2021 Abstract This study uses a unique dataset from a large anonymous brokerage firm to examine the herding behavior of Chinese individual investors. The empirical evidence reveals that females are more inclined to follow the behavior of ‘same-sex’ investors. Market conditions and stock characteristics affect females and males similarly in that individual
Zheng, Z., Tang, K., Liu, Y., Guo, M.
openaire +3 more sources
Vaccines, 2023 Pneumococcal disease remains one of the major causes of severe disease in both children and adults. Severe disease may be prevented by pneumococcal polysaccharide and conjugate vaccines, which currently cover more than 20 serotypes.
Kay Choong See
doaj +1 more source
The disease-induced herd immunity level for Covid-19 is substantially lower than the classical herd immunity level [PDF]
medRxiv, 2020 Most countries are suffering severely from the ongoing covid-19 pandemic despite various levels of preventive measures. A common question is if and when a country or region will reach herd immunity h. The classical herd immunity level hC is defined as hC=
T. Britton, F. Ball, Pieter Trapman
semanticscholar +1 more source
Gregarious Behaviour of Evasive Prey [PDF]
, 2004 Lecture on the first SFB/TR 15 meeting, Gummersbach, July, 18 - 20, 2004We model the formation of a herd as a game between a predator and a prey population.
Eshel, Ilan +2 more
core +3 more sources