Unfortunately the availability of tue vaccine is still low. I need to wait for long time until I can get it. I personally think that it is a humanity matters and vaccine should not be traded but should be distributed freely. The companies which produce vaccine should not take advantage in this situation, but government still have to support that company. Today, in my country there are many places that ask the citizens to show vaccination card. Even companies also give time about 1 month maximum to it's workers to get vaccinated.