January 6th – On the evening of the 5th local time, U.S. House Republican Kevin Brady said on Twitter that he had received a message from the House Physician’s Office that he had tested positive for COVID-19 and had begun to be quarantined and would be treated.
Brady said he had been vaccinated against the first Pfizer coronavirus on December 18, 2020, and tested negative on the first day of the New Year.
According to NBC and other US media reports on the 4th, another U.S. Congressman Kay Granger said that he was infected less than a month after receiving the first dose of vaccine.
Albert Bora, CEO of Pfizer, once said that people who only want to rely on one dose of Pfizer vaccine to get protection are making “big mistakes”.
Recent reports by the U.S. media also show that some medical staff and people were infected after receiving the first dose of vaccine.
Experts say people should still take all protective measures as before vaccination after the first dose.