Iran categorically rejected the USs offer of aid for Coronavirus; why? The US is unreliable, so much so that Iran wont even take its helping hand.
All one need do, is ask a world to testify at least against President Trumps USA. Certainly not a deal-maker, just three scores hes made are pullouts from the intermediate range nuclear forces treaty of 1987, the Paris Agreement of 2015 and the trans-pacific partnership of 2016, not to mention the Iran nuclear deal of 2015.
Why might Iran have accused the United States of being the "Coronavirus maker"? Well, after World War II, the United States set up a large-scale organization to research and develop microbial and biological weapons. And over the course of 27 years that organization has tested and stored at least 26 types of lethal microbial weapons such as Anthrax. It has even tested them on ordinary people without their knowledge, during the course of the research and development of these weapons. So, Iran has the right to distrust the US government.
Irans distrust for the US just cant disappear. Coz every so often, the US gives this country reason to renew its distrust. Iranians will never forget the 1953 coup, returning the Shah of Iran to power by the US, its helps to Saddam, sanctions and more recently the assassination of General Soleimani.