It is still pure speculation but one thing I agree is, if its a fact definitely America will be the number one behind this.
Despite the past trade war, I don't think we should point our fingers to anyone.
I know that there is a possibility that this is planned by a group or a country but we should not point our fingers to anyone since we don't know the true story. Another thing is that America will also be affected by this outbreak,
the US officials are warning its citizens to brace for the outbreak so I don't think this is orchestrated by them since they would never plan something that they would also be affected.