You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

Great idea to celebrate and thank our frontline medical workers, who save lives around the globe. The best news for them and the rest of people would be a vaccine found and deployed rapidly. I hope our 4 May pledging event will  mobilise billions to boost this effort. https://t.co/AZXh2wlRSI