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:

El desarrollo de la #vacuna de #China contra el #COVID19 ha logrado un progreso notable. Más de 100 voluntarios han recibido una dosis de ese tratamiento en #Wuhan durante unas pruebas clínicas.
https://t.co/AXKu0TBPck