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:

🦠#Sechenov University has successfully completed tests on volunteers of the world's first vaccine against #COVID19.

"The #vaccine is safe. The volunteers will be discharged on July 15 and July 20", chief researcher Elena Smolyarchuk told TASS ➡️ https://t.co/jVrmWbLvwX https://t.co/V8bon4lieR