where Λ is the rate at which individuals are recruited into the population (recruitment of infectives is ignored for now); θ is the rate at which susceptible individuals receive the vaccine; µ is the the rate at which people leave the population, through natural death or emigration. We assume this rate to be the same for all sub-populations. b 1 is the rate at which susceptibles get infected; ω is the rate at which vaccine-based immunity wanes; g is the vaccine efficacy; a is the death rate due to the infection; and l is the recovery rate from infection. The terms b 2 I m I I + and b 3 I m I I + measure the effect of reduction of the contact rate when infectious and vaccinated individuals are reported in the media [2, 3, 18] . The half-saturation constant m I > 0 reflects the impact of media coverage on the contact transmission. The function g I I m I I ( ) = + is a continuous bounded function which takes into account disease saturation or psychological effects [24] . We note that recovered individuals cannot be vaccinated. Also, a vaccinated individual who gets infected and then recovers will return to the susceptible class with no vaccine protection. This is true even if ω is quite small but s and l are large. For example, if vaccination lasts three years, but recovery and loss of immunity takes 6 months, then we are assuming this person is subsequently unvaccinated.