Former head of the U.S. Food and Drug Administration and a Pfizer board member, Dr. Scott Gottlieb, has told CNBC that more vaccinated people in the United States are contracting the coronavirus due to weak monitoring of breakthrough infections.
He said a lot of breakthrough infections are happening, particularly among people who have not received a booster shot, so he urged people to get their boosters as soon as possible.
COVID infections are rising in the US, with more than 95,000 new cases reported daily on average.
According to data from Johns Hopkins University, an average of more than 1,100 people are dying daily in the U.S. from the virus.
More than 51,000 Americans are currently hospitalised with COVID-19.