It is more dangerous because people who are vaccinated will take more risks and do less social distancing etc which in turn will harm others. There is no defin

It is more dangerous because people who are vaccinated will take more risks and do less social distancing etc which in turn will harm others. There is no definitive answer whether vaccine will reduce transmission. Those 20,000 people will definitely meet un-vaccinated people in next 10-12 days, and then may pass the disease to them. Many people cannot get the vaccine, because it is not open yet to them, or have other conditions. So it is selfish for vaccinated people to behave as though the rest of the population does not exist. There is also the worry that longer the disease lingers anywhere in the world, there can be mutations which are immune to current vaccines, such an mutation could be disastrous as people will loose trust in the vaccine and a second vaccine even when available will have lesser adoption than now . It could become a vicious cycle where there is third mutation, and this then becomes like the flu shots ( but lot more deadlier)