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:

#COVIDー19| Tras un arduo estudio, investigadores chinos han tratado ciertos casos infectados graves con células madres y todos han salido éxitosamente curados. Esta investigación se ampliará para poder encontrar una cura en la brevedad posible.

▶️https://t.co/VMbwJCXPSC https://t.co/f2jnXBYV2M