The CDC quietly changed its guidance to say even vaccinated people should get tested if they've been exposed to COVID-19

On August 31, 2020, a medical worker performed a PCR test for COVID-19 at a Montreuil, France testing booth. Alain Jocard/AFP/Getty ImagesCDC maintained until Tuesday that people who have been fully vaccinated did not need to be tested for COVID-19 unless they had symptoms.New data suggests that vaccinated individuals may be just as capable of transmitting the Delta variant as unvaccinated.The CDC urges anyone who has been in close contact to someone with COVID-19, to have their test results taken within 3-5 days. This will ensure that they don't expose others.Check out more stories from Insider's business page.The Centers for Disease Control and Prevention (CDC) has released a new set of guidelines Tuesday that changes the protocol for testing coronavirus in fully vaccinated Americans.The CDC recommends that anyone who has been exposed to COVID-19 should be vaccinated.The agency previously maintained that people who have been fully vaccinated didn't need to be tested for COVID-19, unless they had symptoms such as a sore throat, fever, or a cough."We don’t see any reason at the moment to test for those who have asymptomatic," CDC Director Rochelle Wilensky stated during a White House coronavirus briefing.However, this was before the CDC released new findings this week showing that vaccinated individuals may be able transmit the Delta variant to others just as well as those who are not vaccinated.Walensky stated Tuesday that some people who have been vaccinated with the Delta variant virus may become contagious, spreading the virus to others. "This new science is alarming and it unfortunately warrants an update of our recommendations."People who have been fully vaccinated are being asked to remove their masks indoors in areas where COVID-19 is high. The hotspots are marked on the map in red and orange.The CDC Tuesday advised that masks be worn indoors by people living in red and orange-colored areas. CDC Covid Data TrackerThe new guidance states that you should be tested if you have been in close contact with someone who has COVID-19. You should wear a mask indoors for at least 14 days after exposure, or until you get a negative test. If your test results are positive, you should isolate for at least 10 days.Business Insider has the original article.