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. US Considers Shortening COVID-19 Isolation After Potential Exposure VOA News The U.S. Centers for Disease Control and Prevention is considering reducing the recommended self-quarantine period for people who may have been exposed to someone with COVID-19. Current guidelines recommend people isolate for 14 days in that situation, but an official said Tuesday the period could be shortened an unspecified amount if a person tests negative during the isolation period. The U.S. government is also working on its plan to quickly distribute the first round of coronavirus vaccines, should they receive regulatory approval. General Gustave Perna, chief operations officer for the government's Operation Warp Speed, told reporters Tuesday that 40 million doses of vaccine made by two manufacturers would be available by the end of December. The Food and Drug Administration is due to decide December 10 whether to give emergency approval to Pfizer's vaccine, while Moderna is expected to apply for approval soon. Both companies have released preliminary results from trials showing their vaccinesappear to beeffective. The government told states and territories last week how many doses of vaccine they will be allocated in the initial rounds, and it plans to issue further recommendations as to who should be prioritized for receiving the vaccine first. Health care workers are expected to be a focus of the first round of vaccines, and officials have said it could be April by the time a vaccine is available to everyone in the United States. .