Add new comment


I understand how these models can work for most traditional diseases, where infected individuals are no longer contagious after some period, and are generally immune, themselves. However, for a condition such as AIDS, where infected individuals are permanently infected (and without intervention, permanently contagious), what happens to the "gI" term in the equation for dI/dt (R being nonexistent).

If one were modelling HIV/AIDS, would they want to do something different with g?

Furthermore, in the equation for dS/dt, if beta is multiplied by S and I, shouldn't B be multiplied by the total population, and dS be multiplied by S?

Any clarification would be much appreciated. Thanks.

Filtered HTML

  • Web page addresses and email addresses turn into links automatically.
  • Allowed HTML tags: <a href hreflang> <em> <strong> <cite> <code> <ul type> <ol start type> <li> <dl> <dt> <dd>
  • Lines and paragraphs break automatically.