Donald Trump Congratulate Americans as another Covid-19 vaccine is available in the United States of America for American citizens to get vaccinated, Donald said Moderna Vaccine is now available for American. Moderna vaccine is developed by Moderna of Cambridge, Massachusetts in collaboration with the US National Institute of Allergy and Infectious Diseases. COVID-19 pandemic has started spreading all over the country in the United States of America and other countries in the world, the best way to prevent it is to get vaccinated and keep wearing a face mask. Donald Trump has Congratulated Americans this morning for this COVID-19 vaccine that is now available for American citizens. It's going to be free of charge. Donald Trump said: