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. Two Drugmakers Resume US Tests of COVID-19 Vaccines Associated Press Two drugmakers announced Friday the resumption of U.S. testing of their COVID-19 vaccine candidates. Testing of AstraZeneca's vaccine candidate had been halted since early September, while Johnson & Johnson's vaccine study was paused at the beginning of last week. Each company had a study volunteer develop a serious health issue, requiring a review of safety data. The two coronavirus vaccines are among several candidates in final-stage testing, the last step before seeking regulatory approval. The drugmakers said they got the go-ahead Friday from the Food and Drug Administration to restart tests in the United States. .