Results 41 to 50 of about 1,121,626 (305)

Estimating the reproduction number of Ebola virus (EBOV) during the 2014 outbreak in West Africa [PDF]

open access: yes, 2014
The 2014 Ebola virus (EBOV) outbreak in West Africa is the largest outbreak of the genus Ebolavirus to date. To better understand the spread of infection in the affected countries, it is crucial to know the number of secondary cases generated by an ...
Althaus, Christian L.
core   +2 more sources

REPRODUCTION AND HABITAT OF TEN BRAZILIAN FROGS (ANURA) [PDF]

open access: yes, 2008
Basic data on habitat, behavior, and reproduction arelacking for most Neotropical frog species and even highertaxonomic groups (Crump 1974; Haddad and Prado2005), particularly for those restricted to the AtlanticForest.
Facure, Katia G., Giaretta, Ariovaldo A.
core   +2 more sources

Lyapunov Functions for Tuberculosis Models with Fast and Slow Progression [PDF]

open access: yes, 2006
The spread of tuberculosis is studied through two models which include fast and slow progression to the infected class. For each model, Lyapunov functions are used to show that when the basic reproduction number is less than or equal to one, the disease ...
McCluskey, C. Connell
core   +2 more sources

Basic Reproduction Number [PDF]

open access: yesDeutsches Ärzteblatt international, 2010
The basic reproduction number according to the formula (K=population size, beta=transmission rate, alpha=recovery rate, S0=susceptible at the onset of the epidemic, S∞=susceptible at the end of the epidemic) of an infection leading to immunity depends on the size of the exposed population and on the number of people with immunity ...
openaire   +2 more sources

Genealogy with seasonality, the basic reproduction number, and the influenza pandemic [PDF]

open access: yesJournal of Mathematical Biology, 2010
The basic reproduction number R (0) has been used in population biology, especially in epidemiology, for several decades. But a suitable definition in the case of models with periodic coefficients was given only in recent years. The definition involves the spectral radius of an integral operator.
/Bacaër, Nicolas, Dads, E. A.
openaire   +3 more sources

The epidemiology of canine leishmaniasis: transmission rates estimated from a cohort study in Amazonian Brazil [PDF]

open access: yes, 1997
We estimate the incidence rate, serological conversion rate and basic case reproduction number (R0) of Leishmania infantum from a cohort study of 126 domestic dogs exposed to natural infection rates over 2 years on Marajó Island, Pará State, Brazil.
Courtenay, O.   +3 more
core   +1 more source

How Infectious Was #Deflategate? [PDF]

open access: yes, 2015
On Monday January 19, 2015 a story broke that the National Football League (NFL) had started an investigation into whether the New England Patriots deliberately deflated the footballs they used during their championship win over the Indianapolis Colts ...
Eager, Eric   +2 more
core   +3 more sources

SEIR epidemiological model with varying infectivity and infinite delay [PDF]

open access: yes, 2008
A new SEIR model with distributed infinite delay is derived when the infectivity depends on the age of infection. The basic reproduction number R-0, which is a threshold quantity for the stability of equilibria, is calculated.
Röst, Gergely
core   +1 more source

Super-spreading Events and Contribution to Transmission of MERS, SARS, and COVID-19 [PDF]

open access: yes, 2020
There is no clear definition for the term ‘super-spreader’ or ‘super-spreading event’. The World Health Organization refers to a super-spreader as a patient (or an event) that may transmit infection to a larger number of individuals than is usual by one ...
Al-Tawfiq, Jaffar A.   +1 more
core   +1 more source

Transmission dynamics of the ongoing chikungunya outbreak in Central Italy. From coastal areas to the metropolitan city of Rome, summer 2017 [PDF]

open access: yes, 2017
A large chikungunya outbreak is ongoing in Italy, with a main cluster in the Anzio coastal municipality. With preliminary epidemiological data, and a transmission model using mosquito abundance and biting rates, we estimated the basic reproduction number
Caputo, Beniamino   +8 more
core   +2 more sources

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