The more transmissible and probably a more dangerous strain of coronavirus, the Delta variant, now accounts for over half of all new COVID-19 cases in the US, suggests the US Centers for Disease Control and Prevention (CDC).

The CDC estimates that the Delta variant is accountable for 51.7% of new cases of COVID-19 in the US. The Alpha variant now constitutes 28.7% of the cases, noted the agency. The variant poses a major threat to unvaccinated individuals, said Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases. He added that the variant is more transmissible and can also lead to more severe disease… (CNN, July 7, 2021)