Delta COVID-19 Variant Now Accounts, for at Least 10 Percent of New US Cases.<br />The Centers for Disease Control and Prevention (CDC) reported its findings on June 15.<br />The CDC labeled the Delta variant as a "variant of<br />concern," which means that it may be more transmissible, .<br />cause more severe illness, and vaccines <br />may be less effective against it.<br />[This classification] is based on mounting evidence that the Delta variant spreads more easily and causes more severe cases when compared to other variants, including B.1.1.7 (Alpha), CDC statement, via NBC News.<br />Experts say that current vaccines used in the <br />U.S. are effective against this variant, .<br />but those who have not been <br />vaccinated are especially susceptible.<br />This is the most dangerous phase of the pandemic coming up for people who are unvaccinated, Dr. Gregory Poland, Mayo Clinic's Vaccine <br />Research Group, via NBC News.<br />The Delta variant was first detected in India
