Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Trump Says US Will Have COVID Vaccine Before End of 2020 VOA News President Donald Trump said Thursday the U.S. will have a vaccination for the coronavirus"beforethe end of the yearor maybe even sooner." Theannouncementwas part ofTrump'sspeechaccepting the Republican presidential nomination, delivered from the South Lawn of the White Houseas part of the party'snationalconvention. Experts say vaccines cansometimestake decades to develop, test, and be proven safe before they are administered to patients.However, hope has been high that aconcertedinternational effort will produce an effective vaccine sometime next year. "In recent months our nation and the entire planet has been struck by a new and powerful invisible enemy," Trumptold the South Lawn audience whosemostlymask-lessmembers were not sitting six feet apart, ameasure generally practicedtoslowthe spread of the coronavirus. The U.S. has 5.8 million COVID-19cases,roughlyone-fifth of the world's more than 24 million infections,accordingto Johns Hopkins University. The president has rarely been seen in public wearing a mask, another practicedoneto stop the spread of the virus. WATCH: How coronavirus vaccines being tested work .