Results 271 to 280 of about 267,158 (314)
Some of the next articles are maybe not open access.
American Journal of Psychiatry, 1979
Heroin addiction may be considered an epidemic disease that is communicated by people who are addicted to the drug. It has been suggested that the most recent epidemic in the United States had its peak incidence in 1969. The age of heroin addicts entering treatment has increased systematically from 1973 to 1976 at a rate of less than one year of age ...
D J, Egan, D O, Robinson
openaire +2 more sources
Heroin addiction may be considered an epidemic disease that is communicated by people who are addicted to the drug. It has been suggested that the most recent epidemic in the United States had its peak incidence in 1969. The age of heroin addicts entering treatment has increased systematically from 1973 to 1976 at a rate of less than one year of age ...
D J, Egan, D O, Robinson
openaire +2 more sources
Biometrics, 1980
An epidemic chain model is developed by assuming a beta distribution for the probability of being infected by contact with a given infective from the same household. This model includes, as a particular case, the epidemic chain model corresponding to the stochastic Kermack-McKendrick model and, as a limiting case, the Reed-Frost chain binomial model ...
openaire +3 more sources
An epidemic chain model is developed by assuming a beta distribution for the probability of being infected by contact with a given infective from the same household. This model includes, as a particular case, the epidemic chain model corresponding to the stochastic Kermack-McKendrick model and, as a limiting case, the Reed-Frost chain binomial model ...
openaire +3 more sources
Estimation for an Epidemic Model
Biometrics, 1976In many epidemic models the initial infection rate, suitably defined, plays a fundamental role in determining the probability of a major epidemic. An estimate for this rate is suggested on the basis of least squares and maximum likelihood methods. The model used to arrive at the estimate is a Galton-Watson process modified by letting the offspring ...
openaire +3 more sources
Journal of the Royal Statistical Society. Series A (Statistics in Society), 1994
"The problems of understanding and controlling disease raise a range of challenging mathematical and statistical research topics, from broad theoretical issues to specific practical ones. In particular, recent interest in acquired immune deficiency syndrome has stimulated much progress in diverse areas of epidemic modelling, particularly with regard ...
D, Mollison, V, Isham, B, Grenfell
openaire +2 more sources
"The problems of understanding and controlling disease raise a range of challenging mathematical and statistical research topics, from broad theoretical issues to specific practical ones. In particular, recent interest in acquired immune deficiency syndrome has stimulated much progress in diverse areas of epidemic modelling, particularly with regard ...
D, Mollison, V, Isham, B, Grenfell
openaire +2 more sources
Biometrics, 1979
This paper is concerned with models formulated to describe the spread of infectious diseases through a community. Some standard epidemic models are introduced and an overview of their uses is provided. The paper includes a discussion of the advantages of simple models over complex ones and the advantages of stochastic models over deterministic ones ...
openaire +2 more sources
This paper is concerned with models formulated to describe the spread of infectious diseases through a community. Some standard epidemic models are introduced and an overview of their uses is provided. The paper includes a discussion of the advantages of simple models over complex ones and the advantages of stochastic models over deterministic ones ...
openaire +2 more sources
An Epidemic Model With a Multistage Vaccine
Bulletin of Mathematical Biology, 2015Many diseases, such as the seasonal flu, tetanus, and smallpox, can be vaccinated against with a single dose of a vaccine. However, some diseases require multiple doses of a vaccine for immunity. For example, Hepatitis B requires three doses of a vaccine, with the second occurring about 1 month after the first and the third occurring about 5 months ...
Delegge, Anthony +3 more
openaire +3 more sources
International Journal of Bifurcation and Chaos, 2012
A discrete-time deterministic epidemic model is proposed with the aim of reproducing the behavior observed in the incidence of real infectious diseases, such as oscillations and irregularities. For this purpose, we introduce, in a naïve discrete-time SIRS model, seasonal variability (i) in the loss of immunity and (ii) in the infection probability ...
F. Paladini, Ilaria Renna, L. Renna
openaire +1 more source
A discrete-time deterministic epidemic model is proposed with the aim of reproducing the behavior observed in the incidence of real infectious diseases, such as oscillations and irregularities. For this purpose, we introduce, in a naïve discrete-time SIRS model, seasonal variability (i) in the loss of immunity and (ii) in the infection probability ...
F. Paladini, Ilaria Renna, L. Renna
openaire +1 more source
A Framework for Epidemic Models
Journal of Biological Systems, 2003A framework is developed that enables the modeling of the various mechanisms of epidemic processes. A model within the framework is completely characterized by a set of transmission functions. These functions support the modeling of the infectivity of a new infective as a function of its age-of-infection.
openaire +2 more sources
1984
This general introduction to the ideas and techniques required for the mathematical modelling of diseases begins with an outline of some disease statistics dating from Daniel Bernoulli's 1760 smallpox data. The authors then describe simple deterministic and stochastic models in continuous and discrete time for epidemics taking place in either ...
D. J. Daley, J. Gani
openaire +1 more source
This general introduction to the ideas and techniques required for the mathematical modelling of diseases begins with an outline of some disease statistics dating from Daniel Bernoulli's 1760 smallpox data. The authors then describe simple deterministic and stochastic models in continuous and discrete time for epidemics taking place in either ...
D. J. Daley, J. Gani
openaire +1 more source
2000
Summary: A stochastic epidemic model of SIS type has been investigated. For this, the corresponding Fokker-Planck equation has been solved for stationary or equilibrium transition probabilities. The spatial patterns of spread for the infectives for different transition stationary state probabilities have been obtained.
DAS, P., DE, S.
openaire +2 more sources
Summary: A stochastic epidemic model of SIS type has been investigated. For this, the corresponding Fokker-Planck equation has been solved for stationary or equilibrium transition probabilities. The spatial patterns of spread for the infectives for different transition stationary state probabilities have been obtained.
DAS, P., DE, S.
openaire +2 more sources