Do you know anyone else who might take him? Ask the local shelter or humane society if they have anyone who might foster him for a little while - until the vaccine takes effect, and then he can safely be kenneled. And maybe he will have found a home by then!

Ten days may seem like a long time, but it isn't forever. Wouldn't you feel better about youself if you were able to do this, and therefore be a happier person? More stress for ten days, but over the long run a happier person?