Results 31 to 40 of about 1,163,093 (264)

Estimation of the Reproductive Number Trend of the Novel Coronavirus ”COVID-19“ in Southern Iran from July to November 2020 [PDF]

open access: yesIranian Journal of Medical Sciences, 2022
Background: Effective measures to control COVID-19 should be based on an understanding of its epidemiological pattern and the evaluation of its prevalence in the community. This study aimed to examine the reproductive number (R) of COVID-19 and its trend
Jafar Hasanzadeh   +2 more
doaj   +1 more source

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

Global dynamics of a periodic SEIRS model with general incidence rate [PDF]

open access: yes, 2017
We consider a family of periodic SEIRS epidemic models with a fairly general incidence rate and it is shown the basic reproduction number determines the global dynamics of the models and it is a threshold parameter for persistence.
García-Almeida, Gerardo   +2 more
core   +3 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

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

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

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 for the Brazilian Spotted Fever

open access: yesJournal of Theoretical Biology, 2018
Brazilian Spotted Fever (BSF) is an emerging and lethal disease in South America which basic reproduction number (R0) is unknown. Calculating R0 for this disease is crucial to design control interventions and prevent human deaths. BSF endemic areas are related to the presence of capybaras Hydrochoerus hydrochaeris, amplifier hosts of Rickettsia ...
Gina Polo   +2 more
openaire   +3 more sources

Assessing different interventions against Avian Influenza A (H7N9) infection by an epidemiological model

open access: yesOne Health, 2021
This paper aims at evaluating the effectiveness of different intervention measures against the infection of avian influenza A (H7N9) by using an epidemiological model.
Xueli Wei   +4 more
doaj   +1 more source

Towards an understanding of the perpetuation of the agent of tularemia

open access: yesFrontiers in Cellular and Infection Microbiology, 2011
The epidemiology of tularemia has influenced, perhaps incorrectly skewed, our views on the ecology of the agent of tularemia. In particular, the central role of lagomorphs needs to be reexamined.
Sam eTelford, heidi eGoethert
doaj   +1 more source

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