A surge in COVID-19 cases was reported in 42 states amid efforts of vaccine rollout in the country. Pfizer to discuss booster shots with U.S. health officials.
After Russia failed to deliver the ordered doses of the Sputnik V COVID-19 vaccine by Guatemala, the Central American country's Health Minister Amelia Flores stated on Tuesday that the Guatemalan government had asked Russia to return their money.
Scientists said COVID vaccines developed by Pfizer and Moderna had shown a persistent immune reaction in the body that may protect recipients for years.
The highly contagious Delta variant is now the third-most common in California, posing a danger to people who have not received a dose of their COVID vaccines.
The World Health Organization (WHO) warned the public against the Delta COVID variant, saying the virus strain is potentially more lethal to vulnerable people.
Former President Donald Trump said Wednesday that he believes that the COVID pandemic resulted from a "terrible accident" that escaped from a Wuhan lab.
Former Food and Drug Administration (FDA) commissioner Scott Gottlieb said the Delta variant is likely to become the dominant COVID strain in the United States.