Evaluating an immediate re-vaccination program
M. Gamboa Pérez, M. J. López-Herrero
We consider a population of constant size, where individuals are affected by an infectious disease that no confers immunity. Infections can be produced through direct contact with infected individuals within the population and also from an external source of infection. A percentage of the population is vaccinated with an imperfect vaccine. We describe the evolution of the epidemic process in terms of a bi-dimensional continuous-time Markov chain. Due to the imperfect vaccine and the external source of infection, the number of immunized individuals drops down continually and in consequence the herd immunity could be lost. To control the loss of protection, we introduce an alarm threshold on the number of protected individuals. Our main goal is to investigate the size of susceptible group at this time and evaluate if a re-vaccination program could be launched immediately. We provide some numerical results representing the evolution of diphtheria outbreaks.
Keywords: Stochastic Markovian epidemic; Imperfect vaccine; Basic reproduction number
Scheduled
GT17 Stochastic Processes and their Applications II
June 7, 2022 3:30 PM
A26
Other papers in the same session
C. Minuesa Abril, C. Gutiérrez Pérez
M. Lafuente Blasco, R. Gouet Bañares, F. J. López Lorente, G. Sanz
R. E. Lillo, P. Ramirez Cobo, M. González Bernal
Latest news
-
6/8/22
Visit Alhambra
Tomorrow, Thursday, we will visit the Alhambra. 1. At 7:00 p.m., buses will start leaving from the door of the Hotel Granada Center (in front of the door of the Faculty of Sciences) 2. Upon arrival, groups with guides will be organized. 3. There will be groups in English language. These groups will wait at the destination until the arrival of all buses. 4. After the visit to the Alhambra we will walk to the Carmen de los Mártires to have a cocktail. 5. On the way back, we can go back by bus, which will leave from the same place where they left us at the Alhambra. 6. Although the way to the Alhambra by bus seems long, it really is close to the city. We invite you, whoever wishes, to go down for a pleasant walk. 7. Do not forget to take your Alhambra ticket and your identity card or passport. The document must be the same whose number matches the ticket number you have.
-
5/31/22
YouTube Channel
The menu label is already on the web from where you can see the live broadcasts: inauguration, plenary sessions, round tables,... Don't forget to enter the YouTube channel and subscribe!!!!
-
5/27/22
Gala Dinner
It opens the possibility that anyone who is registered for the conference, and wants non-registered companions to attend the gala dinner, can do so by paying the price of this dinner (80 euros VAT included). This payment must be made before June 1 (inclusive). To do this, contact with [email protected]
-
5/23/22
IMPORTANT WARNING
To access the Alhambra on the visit on Thursday 9, it is obligatory to present the identification document whose reference was sent to the organization (eurocongress)
-
5/16/22
Social Events
All social events are included with the payment of the corresponding registration.
