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:

The U.S. is committed to human rights &amp; humanitarian assistance. False rumors about intentions to test a vaccine in Africa are dangerous &amp; a distraction. Close coordination &amp; cooperation with African partners will continue as we work together to stop the spread of #COVIDー19.