Results 61 to 70 of about 1,511,149 (326)

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

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

The basic reproduction number of SARS‐CoV‐2 in Wuhan is about to die out, how about the rest of the World?

open access: yesReviews in Medical Virology, 2020
The virologically confirmed cases of a new coronavirus disease (COVID‐19) in the world are rapidly increasing, leading epidemiologists and mathematicians to construct transmission models that aim to predict the future course of the current pandemic.
B. Rahman, E. Sadraddin, A. Porreca
semanticscholar   +1 more source

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

Asymptomatic transmission shifts epidemic dynamics

open access: yesMathematical Biosciences and Engineering, 2021
Asymptomatic transmission of infectious diseases has been recognized recently in several epidemics or pandemics. There is a great need to incorporate asymptomatic transmissions into traditional modeling of infectious diseases and to study how ...
Jinlong Lv   +3 more
doaj   +1 more source

Estimation of the serial interval and basic reproduction number of COVID‐19 in Qom, Iran, and three other countries: A data‐driven analysis in the early phase of the outbreak

open access: yesTransboundary and Emerging Diseases, 2020
The outbreak of COVID‐19 was first reported from China, and on 19 February 2020, the first case was confirmed in Qom, Iran. The basic reproduction number (R0) of infection is variable in different populations and periods. This study aimed to estimate the
Mohammad Aghaali   +4 more
semanticscholar   +1 more source

A superinfection model on malaria transmission: analysis on the invasion basic reproduction number

open access: yes, 2021
Malaria is one of the many kinds of vector-borne diseases which threaten many developing countries around the world every year. Malaria is caused by more than one type of Plasmodium, which allows a superinfection between two kinds of Plasmodium in the ...
D. Aldila
semanticscholar   +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

A review of epidemiological parameters from Ebola outbreaks to inform early public health decision-making. [PDF]

open access: yes, 2015
The unprecedented scale of the Ebola outbreak in West Africa has, as of 29 April 2015, resulted in more than 10,884 deaths among 26,277 cases. Prior to the ongoing outbreak, Ebola virus disease (EVD) caused relatively small outbreaks (maximum outbreak ...
Bento, AI   +4 more
core   +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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