Studies confirm effectiveness of vaccines against Covid-19 delta strain

According to the U.S. Centers for Disease Control and Prevention (CDC), current anticoronavirus vaccines are still quite effective against the COVID-19 delta strain.

Biden Signs New Executive Order Expanding Coronavirus Vaccination in U.S.

U.S. President Joe Biden has approved a new plan that calls for measures to expand vaccination against a new coronavirus in the country in order to fight the spread of infection.

Scientists warned of evolution of delta strain of coronavirus

A variant of the Delta coronavirus may get new features, scientists said. This is due to permanent mutations.