| Popis: |
How to prevent the spread of human diseases is a great challenge for the scientific community and so far there are many studies in which immunization strategies have been developed. However, these kind of strategies usually do not consider that medical institutes may have limited vaccine resources available. In this manuscript, we explore the susceptible-infected-recovered model with local dynamic vaccination, and considering limited vaccines. In this model, susceptibles in contact with an infected individual, are vaccinated -with probability ω - and then get infected -with probability β . However, when the fraction of immunized individuals reaches a threshold V _L , the vaccination stops, after which only the infection is possible. In the steady state, besides the critical points β _c and ω _c that separate a non-epidemic from an epidemic phase, we find for a range of V _L another transition points, β * > β _c and ω * |
